{"id":12315,"date":"2026-07-08T11:44:22","date_gmt":"2026-07-08T03:44:22","guid":{"rendered":"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/"},"modified":"2026-09-03T23:27:12","modified_gmt":"2026-09-03T15:27:12","slug":"comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/","title":{"rendered":"Kompleksowy przewodnik po DFD: Logika vs Fizyka z przyk\u0142adami w Graphviz"},"content":{"rendered":"<p><iframe allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\" class=\"__youtube_prefs__ epyt-is-override no-lazyload\" data-no-lazy=\"1\" data-origheight=\"456\" data-origwidth=\"810\" data-skipgform_ajax_framebjll=\"\" height=\"456\" id=\"_ytid_25837\" loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/OOPBmkcdJKo?enablejsapi=1&amp;autoplay=0&amp;cc_load_policy=0&amp;cc_lang_pref=&amp;iv_load_policy=1&amp;loop=0&amp;modestbranding=0&amp;rel=1&amp;fs=1&amp;playsinline=0&amp;autohide=2&amp;theme=dark&amp;color=red&amp;controls=1&amp;\" title=\"YouTube player\" width=\"810\"><\/iframe><\/p>\n<h2>1. Wprowadzenie do diagram\u00f3w przep\u0142ywu danych<\/h2>\n<p>Diagram przep\u0142ywu danych (DFD) to graficzna reprezentacja sposobu, w jaki dane przemieszczaj\u0105 si\u0119 przez system informacyjny. Pokazuje:<\/p>\n<ul>\n<li>Sk\u0105d pochodz\u0105 dane i dok\u0105d s\u0105 kierowane<\/li>\n<li>Jak dane s\u0105 przetwarzane<\/li>\n<li>Gdzie dane s\u0105 przechowywane<\/li>\n<li>Kto lub co oddzia\u0142uje z systemem<\/li>\n<\/ul>\n<p id=\"EcYDADG\"><img alt=\"Infografika por\u00f3wnawcza ilustruj\u0105ca r\u00f3\u017cnice mi\u0119dzy diagramami przep\u0142ywu danych logicznymi a fizycznymi.\" class=\"alignnone size-full wp-image-19316\" decoding=\"async\" height=\"572\" loading=\"lazy\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc7473f087.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc7473f087.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc7473f087-300x168.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc7473f087-768x429.png 768w\" width=\"1024\"\/><\/p>\n<hr\/>\n<h2>2. Kluczowe poj\u0119cia<\/h2>\n<h3>Podstawowe elementy<\/h3>\n<table>\n<thead>\n<tr>\n<th>Element<\/th>\n<th>Symbol<\/th>\n<th>Znaczenie<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Podmiot zewn\u0119trzny<\/strong><\/td>\n<td>Prostok\u0105t<\/td>\n<td>Osoba, organizacja lub system wysy\u0142aj\u0105cy\/odbieraj\u0105cy dane<\/td>\n<\/tr>\n<tr>\n<td><strong>Proces<\/strong><\/td>\n<td>Ko\u0142o\/Elipsa<\/td>\n<td>Przekszta\u0142ca dane przychodz\u0105ce w dane wychodz\u0105ce<\/td>\n<\/tr>\n<tr>\n<td><strong>Magazyn danych<\/strong><\/td>\n<td>Otwarty prostok\u0105t<\/td>\n<td>Magazyn do trwa\u0142ego przechowywania danych<\/td>\n<\/tr>\n<tr>\n<td><strong>Przep\u0142yw danych<\/strong><\/td>\n<td>Strza\u0142ka<\/td>\n<td>Pokazuje kierunek przep\u0142ywu danych<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Poziomy DFD<\/h3>\n<ol>\n<li><strong>Diagram kontekstowy (Poziom 0)<\/strong>: Najwy\u017cszy poziom, pokazuje granice systemu i g\u0142\u00f3wne podmioty zewn\u0119trzne<\/li>\n<li><strong>Poziom 1<\/strong>: Rozk\u0142ada g\u0142\u00f3wny proces na g\u0142\u00f3wne podprocesy<\/li>\n<li><strong>Poziom 2+<\/strong>: Dalsza dekompozycja pokazuj\u0105ca szczeg\u00f3\u0142owe procesy<\/li>\n<\/ol>\n<hr\/>\n<h2>3. DFD logiczne vs DFD fizyczne<\/h2>\n<h3>DFD logiczne<\/h3>\n<p id=\"yFElbTX\"><img alt=\"Diagram DFD logiczny pokazuj\u0105cy logik\u0119 biznesow\u0105 i dzia\u0142ania niezale\u017cne od ogranicze\u0144 sprz\u0119towych lub programowych.\" class=\"alignnone size-full wp-image-19327\" decoding=\"async\" height=\"627\" loading=\"lazy\" sizes=\"auto, (max-width: 627px) 100vw, 627px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28ba4cd22.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28ba4cd22.png 627w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28ba4cd22-300x300.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28ba4cd22-150x150.png 150w\" width=\"627\"\/><\/p>\n<p>A <strong>DFD logiczne<\/strong> (zwany r\u00f3wnie\u017c \u201emodelem podstawowym\u201d) koncentruje si\u0119 na:<\/p>\n<ul>\n<li><strong>CO<\/strong> robi system<\/li>\n<li>Dzia\u0142ania biznesowe i wymagania informacyjne<\/li>\n<li>Niezale\u017cny od technologii implementacji<\/li>\n<\/ul>\n<p><strong>Cechy:<\/strong><\/p>\n<ul>\n<li>Pokazuje operacje i procesy biznesowe<\/li>\n<li>Brak szczeg\u00f3\u0142\u00f3w specyficznych dla technologii<\/li>\n<li>Bardziej abstrakcyjne i skupione na u\u017cytkowniku<\/li>\n<li>Pomaga zrozumie\u0107 wymagania biznesowe<\/li>\n<\/ul>\n<h3>DFD fizyczne<\/h3>\n<p id=\"vTzCKpc\"><img alt=\"Diagram pokazuj\u0105cy komponenty DFD fizycznego: sprz\u0119t, oprogramowanie, ludzie i ograniczenia techniczne.\" class=\"alignnone size-full wp-image-19328\" decoding=\"async\" height=\"626\" loading=\"lazy\" sizes=\"auto, (max-width: 626px) 100vw, 626px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28c904788.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28c904788.png 626w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28c904788-300x300.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4e28c904788-150x150.png 150w\" width=\"626\"\/><\/p>\n<p>A <strong>DFD fizyczne<\/strong> (zwany r\u00f3wnie\u017c \u201emodelem implementacji\u201d) koncentruje si\u0119 na:<\/p>\n<ul>\n<li><strong>JAK<\/strong> system zostanie zaimplementowany<\/li>\n<li>Szczeg\u00f3\u0142y techniczne i ograniczenia<\/li>\n<li>Konkretne technologie i systemy<\/li>\n<\/ul>\n<p><strong>Cechy:<\/strong><\/p>\n<ul>\n<li>Pokazuje rzeczywisty sprz\u0119t, oprogramowanie i ludzi<\/li>\n<li>Zawiera szczeg\u00f3\u0142y implementacji<\/li>\n<li>Bardziej konkretne i skupione na deweloperach<\/li>\n<li>Pomaga w projektowaniu i wdra\u017caniu systemu<\/li>\n<\/ul>\n<h3>Tabela por\u00f3wnawcza<\/h3>\n<table>\n<thead>\n<tr>\n<th>Aspekt<\/th>\n<th>Logiczny diagram przep\u0142ywu danych<\/th>\n<th>Fizyczny diagram przep\u0142ywu danych<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Skupienie<\/strong><\/td>\n<td>Potrzeby biznesowe<\/td>\n<td>Wdro\u017cenie<\/td>\n<\/tr>\n<tr>\n<td><strong>Kto<\/strong><\/td>\n<td>Analitycy biznesowi, u\u017cytkownicy<\/td>\n<td>Projektanci system\u00f3w, programi\u015bci<\/td>\n<\/tr>\n<tr>\n<td><strong>Poziom<\/strong><\/td>\n<td>Wysokopoziomowy, abstrakcyjny<\/td>\n<td>Szczeg\u00f3\u0142owy, konkretny<\/td>\n<\/tr>\n<tr>\n<td><strong>Komponenty<\/strong><\/td>\n<td>Procesy biznesowe<\/td>\n<td>Procesy techniczne<\/td>\n<\/tr>\n<tr>\n<td><strong>Zbiory danych<\/strong><\/td>\n<td>Entitie koncepcyjne<\/td>\n<td>Pliki\/fizyczne bazy danych<\/td>\n<\/tr>\n<tr>\n<td><strong>Entitety<\/strong><\/td>\n<td>Role biznesowe<\/td>\n<td>Rzeczywiste systemy\/urz\u0105dzenia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr\/>\n<h2>4. Komponenty diagramu przep\u0142ywu danych<br \/>\n<img alt=\"Symbole diagramu przep\u0142ywu danych (DFD) - EdrawMax\" decoding=\"async\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/dfd-basic-symbol.jpg\"\/><\/h2>\n<h3>Entitety zewn\u0119trzne<\/h3>\n<ul>\n<li>\u0179r\u00f3d\u0142a i miejsca przeznaczenia danych<\/li>\n<li>Poza granicami systemu<\/li>\n<li>Nazwane rzeczownikami<\/li>\n<\/ul>\n<h3>Procesy<\/h3>\n<ul>\n<li>Przekszta\u0142caj\u0105 dane z wej\u015bcia na wyj\u015bcie<\/li>\n<li>Nazwane czasownikiem + rzeczownikiem<\/li>\n<li>Oznaczone numerami identyfikacyjnymi<\/li>\n<\/ul>\n<h3>Zbiory danych<\/h3>\n<ul>\n<li>Trwa\u0142e repozytoria danych<\/li>\n<li>Nazwane rzeczownikami<\/li>\n<li>Numeracja D1, D2, D3\u2026<\/li>\n<\/ul>\n<h3>Przep\u0142ywy danych<\/h3>\n<ul>\n<li>Pokazuj\u0105 ruch danych<\/li>\n<li>Nazwane opisowymi etykietami<\/li>\n<li>Kierunek wskazuje przep\u0142yw<\/li>\n<\/ul>\n<hr\/>\n<h2>5. Przyk\u0142ady praktyczne z u\u017cyciem Graphviz<\/h2>\n<h3>Przyk\u0142ad 1: System zarz\u0105dzania hotelem (logiczny DFD)<\/h3>\n<p id=\"WGcAFhu\"><img alt=\"Logiczny DFD dla systemu zarz\u0105dzania hotelem pokazuj\u0105cy przep\u0142ywy danych mi\u0119dzy go\u015b\u0107mi, personelem i bazami danych.\" class=\"alignnone size-full wp-image-19312\" decoding=\"async\" height=\"873\" loading=\"lazy\" sizes=\"auto, (max-width: 1917px) 100vw, 1917px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc5d6c7cab.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc5d6c7cab.png 1917w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc5d6c7cab-300x137.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc5d6c7cab-1024x466.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc5d6c7cab-768x350.png 768w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc5d6c7cab-1536x699.png 1536w\" width=\"1917\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Graphviz<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" 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href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" 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true\r\n        overlap = false\r\n        nodesep = 0.6\r\n        ranksep = 1.0\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 12\r\n    ]\r\n\r\n    \/\/ --- NODE STYLES ---\r\n    node [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 11\r\n        penwidth = 1.5\r\n    ]\r\n\r\n    \/\/ External Entities\r\n    node [shape = box, style = \"filled\", fillcolor = \"#E1F5FE\", color = \"#0288D1\"] \r\n    Guest;\r\n    Staff;\r\n\r\n    \/\/ --- SYSTEM BOUNDARY ---\r\n    subgraph cluster_SystemBoundary {\r\n        label = \"Hotel MIS System Boundary\";\r\n        fontname = \"Helvetica,Arial,sans-serif\";\r\n        fontcolor = \"#757575\";\r\n        fontsize = 14;\r\n        color = \"#757575\";\r\n        style = \"dashed,rounded\";\r\n        bgcolor = \"#FAFAFA\";\r\n        margin = 20;\r\n\r\n        \/\/ Processes\r\n        node [shape = circle, style = \"filled\", fillcolor = \"#E8F5E9\", color = \"#388E3C\", fixedsize = true, width = 1.3]\r\n        P1 [label=\"1.0nManagenReservations\"];\r\n        P2 [label=\"2.0nCheck-In\/nOut\"];\r\n        P3 [label=\"3.0nManagenInventory\"];\r\n\r\n        \/\/ Data Stores\r\n        node [shape = record, style = \"filled\", fillcolor = \"#FFF9C4\", color = \"#FBC02D\", fixedsize = false]\r\n        ReservationsDS [label=\"{ &lt;id&gt; D1 | ReservationsnDatabase }\"];\r\n        RoomsDS        [label=\"{ &lt;id&gt; D2 | Room StatusnDatabase }\"];\r\n        InventoryDS    [label=\"{ &lt;id&gt; D3 | InventorynDatabase }\"];\n    }\r\n\r\n    \/\/ --- EDGE STYLES ---\r\n    edge [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 9\r\n        color = \"#555555\"\r\n        arrowsize = 0.8\r\n    ]\r\n\r\n    \/\/ --- DATA FLOWS ---\r\n    \r\n    \/\/ Guest Interactions\r\n    Guest -&gt; P1 [label=\"Booking Request\"];\r\n    P1 -&gt; Guest [label=\"Confirmation\"];\r\n\r\n    Guest -&gt; P2 [label=\"Arrival\"];\r\n    P2 -&gt; Guest [label=\"Room Key\/Receipt\"];\r\n\r\n    \/\/ Staff Interactions\r\n    Staff -&gt; P3 [label=\"Update Inventory\"];\r\n    P3 -&gt; Staff [label=\"Alerts\/Reports\"];\r\n\r\n    \/\/ Process to Data Store\r\n    P1 -&gt; ReservationsDS [label=\"New Reservation\"];\r\n    ReservationsDS -&gt; P1 [label=\"Check Availability\"];\r\n    \r\n    P1 -&gt; RoomsDS [label=\"Room Details Request\"];\r\n    RoomsDS -&gt; P1 [label=\"Available Rooms\"];\r\n    \r\n    P2 -&gt; RoomsDS [label=\"Room Status Update\"];\r\n    RoomsDS -&gt; P2 [label=\"Room Information\"];\r\n    \r\n    P2 -&gt; P3 [label=\"Stay Details\"];\r\n    P3 -&gt; InventoryDS [label=\"Stock Update\"];\r\n    InventoryDS -&gt; P3 [label=\"Stock Levels\"];\n}<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" 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href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" 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href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" 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srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc609341c3.png 1916w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc609341c3-300x137.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc609341c3-1024x466.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc609341c3-768x350.png 768w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc609341c3-1536x699.png 1536w\" width=\"1916\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Graphviz<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Graphviz<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Graphviz<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#graphviz:eNqtVNtu2zgQfQ\/QfyDUly5gN7ZUYx2kLWBbUrNA0gSRi0VQBAUt0TYRmvSSVFpvN\/++pEiJujkt0NIv1vDM5RzOTIY3HO634BKvOOSH5CAk2n25ZBucQgK+vzgB6pyeguFwCD7czm4uQLK8u4z0t7kz7p\/Nhz4c0ocMc\/AOLOfOKvYEUySUVfIcOTtlGRJor+yj15NmkNI8deY1o5LCHVJ27wKRRyRVmYMZx5AMBKRiKBDHa6\/pIPC\/2mHsG\/P9i5MGq4\/XYWRIJY6VLqtO6pcSj515j+hXnMmtNpd86wVF3yTiVCkfUYklRqJejtjCvQ64Yt8GQMgDKcpZY0JQ5g2A\/pMywrT03stoHE\/iSJmdaeRPp+HYuzcxr9Buhfi5+TDPjyE9b6mT3CXL6ArMrz99DGe3d04hka\/M06ckVz3DvzQ6qOwcfQhcIaILsAhgIa9sl\/3hndf6pKSVQbFF2YCznGaKXg3iCP050b\/63WrjbuOZ\/tVvd5BvMFWX\/qjiabnecJYiIUrBu6KnmKcE\/YTu03gSnTV0D6bTKFgok3v6N\/cuz80YfC40eueNX4\/oFaRwg+gCSkjYxruv1X\/jV0hfIW3NdM44Z18xbYGDChwo8AWkGUH0FsmcU1EgGwKEKh9IJOPHJeAoZTz7sQRxHJ8t3jQkiOeLkR96NdaWX5hUVX4Hb3H2HoRj8B+YM\/ZQSgCeGryWajcImErMqOjx9gtvK4iiq0sWrRCm9XucA+VsLqnWYwUFKlwLz6fWaEThh+7iQNnmty2Os76enxSn5gA1V+tRLcv2kgtnyxmIL6\/\/rpVaAQxj8BdVY2yFra8IMHxf79EEQZ5uixcSlarqXqEsvoW8RSIn0mE7sV1Xm4dTHv\/kSEgX3e+JbrELRteY76Au+3gKNwtmANrlBz0JLFK1EMJ7WZsYJVm1L3tUc3dN4WZZdvppn0GJesVzbqVD2f\/W6RmmzZSOrN0Q4PoR8SxHLb7djBanOO8Zb1EuFkRMVK\/Vq+6OseZmS3YUHaypSUlRB29xMo\/ejb\/YovQBzB4hVgZMsDwcyeI3S0oklLnoTdLZByaH7YeWYwVu5qiGaM16cxxZWwuOTEPYxtfrqvJv+fTNilpy4AILtbcP7bTBM2ltS5kWfy5f0J3NYqP2JuvoaNP8hJDBESFPnv4HGHDvcA==\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Graphviz in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-graphviz\"><code class=\"language-graphviz\" data-language=\"graphviz\" class=\"language-graphviz\">digraph LibrarySystem_Logical {\r\n    \/\/ --- GRAPH STYLE ---\r\n    graph [\r\n        rankdir = TB\r\n        splines = true\r\n        nodesep = 0.5\r\n        ranksep = 0.8\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 12\r\n    ]\r\n\r\n    \/\/ --- NODE STYLES ---\r\n    node [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 11\r\n        penwidth = 1.5\r\n    ]\r\n\r\n    \/\/ External Entities\r\n    node [shape = box, style = \"filled\", fillcolor = \"#E1F5FE\", color = \"#0288D1\"]\r\n    Member;\r\n    Librarian;\r\n\r\n    \/\/ --- SYSTEM BOUNDARY ---\r\n    subgraph cluster_LibrarySystem {\r\n        label = \"Library System (Logical)\";\r\n        style = \"dashed,rounded\";\r\n        color = \"#757575\";\r\n        bgcolor = \"#FAFAFA\";\r\n        margin = 20;\r\n\r\n        \/\/ Processes\r\n        node [shape = circle, style = \"filled\", fillcolor = \"#E8F5E9\", color = \"#388E3C\", width = 1.4]\r\n        P1 [label=\"1.0nManagenCatalog\"];\r\n        P2 [label=\"2.0nProcessnBorrowing\"];\r\n        P3 [label=\"3.0nHandlenReturns\"];\r\n\r\n        \/\/ Data Stores\r\n        node [shape = record, style = \"filled\", fillcolor = \"#FFF9C4\", color = \"#FBC02D\"]\r\n        CatalogDS [label=\"{ &lt;id&gt; D1 | BooknCatalog }\"];\r\n        TransactionsDS [label=\"{ &lt;id&gt; D2 | BorrowingnRecords }\"];\r\n        MemberDS [label=\"{ &lt;id&gt; D3 | MembernDatabase }\"];\n    }\r\n\r\n    \/\/ --- EDGE STYLES ---\r\n    edge [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 9\r\n        color = \"#555555\"\r\n        arrowsize = 0.8\r\n    ]\r\n\r\n    \/\/ --- DATA FLOWS ---\r\n    \r\n    \/\/ Member Interactions\r\n    Member -&gt; P1 [label=\"Search Books\"];\r\n    P1 -&gt; Member [label=\"Search Results\"];\r\n    \r\n    Member -&gt; P2 [label=\"Borrow Request\"];\r\n    P2 -&gt; Member [label=\"Borrow Confirmation\"];\r\n    \r\n    Member -&gt; P3 [label=\"Return Books\"];\r\n    P3 -&gt; Member [label=\"Return Receipt\"];\r\n\r\n    \/\/ Librarian Interactions\r\n    Librarian -&gt; P1 [label=\"Add\/Update Books\"];\r\n    P1 -&gt; Librarian [label=\"Catalog Update Confirmation\"];\r\n    \r\n    Librarian -&gt; P3 [label=\"Process Overdue\"];\r\n    P3 -&gt; Librarian [label=\"Overdue Report\"];\r\n\r\n    \/\/ Data Flows\r\n    P1 -&gt; CatalogDS [label=\"Book Updates\"];\r\n    CatalogDS -&gt; P1 [label=\"Catalog Data\"];\r\n    \r\n    P2 -&gt; CatalogDS [label=\"Check Availability\"];\r\n    CatalogDS -&gt; P2 [label=\"Book Status\"];\r\n    \r\n    P2 -&gt; MemberDS [label=\"Check Member Status\"];\r\n    MemberDS -&gt; P2 [label=\"Member Info\"];\r\n    \r\n    P2 -&gt; TransactionsDS [label=\"Create Borrow Record\"];\r\n    TransactionsDS -&gt; P2 [label=\"Borrowing History\"];\r\n    \r\n    P3 -&gt; TransactionsDS [label=\"Update Return\"];\r\n    TransactionsDS -&gt; P3 [label=\"Borrow Records\"];\r\n    \r\n    P3 -&gt; MemberDS [label=\"Update Member Status\"];\r\n    MemberDS -&gt; P3 [label=\"Member Info\"];\n}<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Graphviz in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3>Przyk\u0142ad 3: Fizyczny DFD \u2013 System zarz\u0105dzania bibliotek\u0105<\/h3>\n<p id=\"VUZUuAT\"><img alt=\"Fizyczny DFD dla systemu zarz\u0105dzania bibliotek\u0105 pokazuj\u0105cy przep\u0142ywy danych Katalogu Webowego, API Wypo\u017cycze\u0144 i Procesora Zwracania.\" class=\"alignnone size-full wp-image-19314\" decoding=\"async\" height=\"1228\" loading=\"lazy\" sizes=\"auto, (max-width: 1091px) 100vw, 1091px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc62dd2afa.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc62dd2afa.png 1091w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc62dd2afa-267x300.png 267w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc62dd2afa-910x1024.png 910w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc62dd2afa-768x864.png 768w\" width=\"1091\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Graphviz<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Graphviz<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Graphviz<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Graphviz in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-graphviz\"><code class=\"language-graphviz\" data-language=\"graphviz\" class=\"language-graphviz\">digraph LibrarySystem_Physical {\r\n    \/\/ --- GRAPH STYLE ---\r\n    graph [\r\n        rankdir = TB\r\n        splines = true\r\n        nodesep = 0.5\r\n        ranksep = 0.8\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 12\r\n    ]\r\n\r\n    \/\/ --- NODE STYLES ---\r\n    node [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 11\r\n        penwidth = 1.5\r\n    ]\r\n\r\n    \/\/ External Entities (Physical)\r\n    node [shape = box, style = \"filled\", fillcolor = \"#E1F5FE\", color = \"#0288D1\"]\r\n    \"Library Member\" [label=\"LibrarynMember\"];\r\n    \"Librarian\" [label=\"LibrariannStaff\"];\r\n    \"Email System\" [label=\"EmailnSystem\"];\r\n    \"Payment Gateway\" [label=\"PaymentnGateway\"];\r\n\r\n    \/\/ --- SYSTEM BOUNDARY ---\r\n    subgraph cluster_LibrarySystem_Physical {\r\n        label = \"Library Management System (Physical Implementation)\";\r\n        style = \"dashed,rounded\";\r\n        color = \"#757575\";\r\n        bgcolor = \"#FAFAFA\";\r\n        margin = 20;\r\n\r\n        \/\/ Physical Processes (with technology details)\r\n        node [shape = circle, style = \"filled\", fillcolor = \"#E8F5E9\", color = \"#388E3C\", width = 1.4]\r\n        P1 [label=\"1.0nWeb Catalogn(HTML, JS)\"];\r\n        P2 [label=\"2.0nBorrowingnAPIn(Python\/REST)\"];\r\n        P3 [label=\"3.0nReturnnProcessorn(Java)\"];\r\n\r\n        \/\/ Physical Data Stores (with technology details)\r\n        node [shape = record, style = \"filled\", fillcolor = \"#FFF9C4\", color = \"#FBC02D\"]\r\n        CatalogDS [label=\"{ &lt;id&gt; D1 | PostgreSQLnBook Catalog }\"];\r\n        TransactionsDS [label=\"{ &lt;id&gt; D2 | MongoDBnBorrow Records }\"];\r\n        MemberDS [label=\"{ &lt;id&gt; D3 | OraclenMember DB }\"];\r\n        \r\n        \/\/ Additional physical components\r\n        node [shape = box, style = \"filled\", fillcolor = \"#F3E5F5\", color = \"#8E24AA\"]\r\n        \"Cache Server\" [label=\"RedisnCache\"];\r\n        \"Message Queue\" [label=\"RabbitMQnQueue\"];\n    }\r\n\r\n    \/\/ --- EDGE STYLES ---\r\n    edge [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 9\r\n        color = \"#555555\"\r\n        arrowsize = 0.8\r\n    ]\r\n\r\n    \/\/ --- DATA FLOWS (Physical) ---\r\n    \r\n    \/\/ Physical Member Interactions\r\n    \"Library Member\" -&gt; P1 [label=\"HTTP GETnBook Search\"];\r\n    P1 -&gt; \"Library Member\" [label=\"HTML\/JSONnResults\"];\r\n    \r\n    \"Library Member\" -&gt; P2 [label=\"REST APInBorrow Request\"];\r\n    P2 -&gt; \"Library Member\" [label=\"JSONnConfirmation\"];\r\n    \r\n    \"Library Member\" -&gt; P3 [label=\"REST APInReturn\"];\r\n    P3 -&gt; \"Library Member\" [label=\"JSONnReceipt\"];\r\n\r\n    \/\/ Physical Librarian Interactions\r\n    \"Librarian\" -&gt; P1 [label=\"HTTPSnCatalog Mgmt\"];\r\n    P1 -&gt; \"Librarian\" [label=\"HTMLnConfirmation\"];\r\n    \r\n    \"Librarian\" -&gt; P3 [label=\"REST APInOverdue Process\"];\r\n    P3 -&gt; \"Librarian\" [label=\"PDF Report\"];\r\n\r\n    \/\/ External System Interactions\r\n    P2 -&gt; \"Email System\" [label=\"SMTPnNotification\"];\r\n    P3 -&gt; \"Payment Gateway\" [label=\"HTTPSnFine Payment\"];\r\n\r\n    \/\/ Data Flows (Physical)\r\n    P1 -&gt; CatalogDS [label=\"SQL UPDATE\"];\r\n    CatalogDS -&gt; P1 [label=\"SQL SELECT\"];\r\n    \r\n    P1 -&gt; \"Cache Server\" [label=\"Cache Update\"];\r\n    \"Cache Server\" -&gt; P1 [label=\"Cache Hit\"];\r\n    \r\n    P2 -&gt; CatalogDS [label=\"SQL SELECT\"];\r\n    CatalogDS -&gt; P2 [label=\"SQL RESULT\"];\r\n    \r\n    P2 -&gt; MemberDS [label=\"SQL SELECT\"];\r\n    MemberDS -&gt; P2 [label=\"SQL RESULT\"];\r\n    \r\n    P2 -&gt; TransactionsDS [label=\"INSERT\"];\r\n    TransactionsDS -&gt; P2 [label=\"SELECT\"];\r\n    \r\n    P2 -&gt; \"Message Queue\" [label=\"PublishnBorrow Event\"];\r\n    \r\n    P3 -&gt; TransactionsDS [label=\"UPDATE\"];\r\n    TransactionsDS -&gt; P3 [label=\"SELECT\"];\r\n    \r\n    P3 -&gt; MemberDS [label=\"UPDATE\"];\r\n    MemberDS -&gt; P3 [label=\"SELECT\"];\r\n    \r\n    P3 -&gt; \"Message Queue\" [label=\"PublishnReturn Event\"];\n}<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Graphviz in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3>Przyk\u0142ad 4: Obs\u0142uga zam\u00f3wie\u0144 w handlu elektronicznym (Logiczny DFD)<\/h3>\n<p id=\"BWPdcdI\"><img alt=\"Logiczny DFD dla przetwarzania zam\u00f3wie\u0144 w e-commerce pokazuj\u0105cy przep\u0142ywy danych mi\u0119dzy Klientem, Dostawc\u0105, Procesorem P\u0142atno\u015bci i procesami wewn\u0119trznymi.\" class=\"alignnone size-full wp-image-19315\" decoding=\"async\" height=\"741\" loading=\"lazy\" sizes=\"auto, (max-width: 1073px) 100vw, 1073px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc64c9d4de.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc64c9d4de.png 1073w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc64c9d4de-300x207.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc64c9d4de-1024x707.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc64c9d4de-768x530.png 768w\" width=\"1073\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Graphviz<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Graphviz<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Graphviz<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Graphviz in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-graphviz\"><code class=\"language-graphviz\" data-language=\"graphviz\" class=\"language-graphviz\">digraph ECommerce_Logical {\r\n    \/\/ --- STYLE WYKRESU ---\r\n    graph [\r\n        rankdir = LR\r\n        splines = true\r\n        nodesep = 0.5\r\n        ranksep = 0.8\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 12\r\n    ]\r\n\r\n    \/\/ --- STYLE W\u0118Z\u0141\u00d3W ---\r\n    node [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 11\r\n        penwidth = 1.5\r\n    ]\r\n\r\n    \/\/ Podmioty zewn\u0119trzne\r\n    node [shape = box, style = \"filled\", fillcolor = \"#E1F5FE\", color = \"#0288D1\"]\r\n    Customer;\r\n    Supplier;\r\n    \"Payment Processor\" [label=\"PaymentnProcessor\"];\r\n\r\n    \/\/ --- GRANICA SYSTEMU ---\r\n    subgraph cluster_ECommerce {\r\n        label = \"System Handlu Elektronicznego (Logiczny)\";\r\n        style = \"dashed,rounded\";\r\n        color = \"#757575\";\r\n        bgcolor = \"#FAFAFA\";\r\n        margin = 20;\r\n\r\n        \/\/ Procesy\r\n        node [shape = circle, style = \"filled\", fillcolor = \"#E8F5E9\", color = \"#388E3C\", width = 1.4]\r\n        P1 [label=\"1.0nObs\u0142uganZam\u00f3wienia\"];\r\n        P2 [label=\"2.0nZarz\u0105dzanienZapasami\"];\r\n        P3 [label=\"3.0nObs\u0142uganWysy\u0142ki\"];\r\n\r\n        \/\/ Magazyny danych\r\n        node [shape = record, style = \"filled\", fillcolor = \"#FFF9C4\", color = \"#FBC02D\"]\r\n        OrderDS [label=\"{ &lt;id&gt; D1 | Zam\u00f3wienia }\"];\r\n        InventoryDS [label=\"{ &lt;id&gt; D2 | Zapasy }\"];\r\n        ShipmentDS [label=\"{ &lt;id&gt; D3 | Wysy\u0142ki }\"];\r\n    }\r\n\r\n    \/\/ --- STYLE KRAW\u0118DZI ---\r\n    edge [\r\n        fontname = \"Helvetica,Arial,sans-serif\"\r\n        fontsize = 9\r\n        color = \"#555555\"\r\n        arrowsize = 0.8\r\n    ]\r\n\r\n    \/\/ --- PRZEP\u0141YWY DANYCH ---\r\n    \r\n    \/\/ Interakcje z klientem\r\n    Customer -&gt; P1 [label=\"Szczeg\u00f3\u0142y zam\u00f3wienia\"];\r\n    P1 -&gt; Customer [label=\"Potwierdzenie zam\u00f3wienia\"];\r\n    \r\n    Customer -&gt; P3 [label=\"\u015aledzenie zam\u00f3wienia\"];\r\n    P3 -&gt; Customer [label=\"Informacje o \u015bledzeniu\"];\r\n\r\n    \/\/ Procesor p\u0142atno\u015bci\r\n    \"Payment Processor\" -&gt; P1 [label=\"Odpowied\u017a p\u0142atno\u015bci\"];\r\n    P1 -&gt; \"Payment Processor\" [label=\"\u017b\u0105danie p\u0142atno\u015bci\"];\r\n\r\n    \/\/ Dostawca\r\n    Supplier -&gt; P2 [label=\"Aktualizacja zapas\u00f3w\"];\r\n    P2 -&gt; Supplier [label=\"\u017b\u0105danie ponownego zam\u00f3wienia\"];\r\n\r\n    \/\/ Przep\u0142ywy danych proces\u00f3w\r\n    P1 -&gt; OrderDS [label=\"Zapisz zam\u00f3wienie\"];\r\n    OrderDS -&gt; P1 [label=\"Historia zam\u00f3wie\u0144\"];\r\n    \r\n    P1 -&gt; InventoryDS [label=\"Sprawd\u017a zapasy\"];\r\n    InventoryDS -&gt; P1 [label=\"Dost\u0119pno\u015b\u0107\"];\r\n    \r\n    P1 -&gt; P3 [label=\"Szczeg\u00f3\u0142y wysy\u0142ki\"];\r\n    \r\n    P2 -&gt; InventoryDS [label=\"Aktualizuj zapasy\"];\r\n    InventoryDS -&gt; P2 [label=\"Aktualne zapasy\"];\r\n    \r\n    P3 -&gt; OrderDS [label=\"Aktualizuj status\"];\r\n    OrderDS -&gt; P3 [label=\"Informacje o zam\u00f3wieniu\"];\r\n    \r\n    P3 -&gt; ShipmentDS [label=\"Utw\u00f3rz wysy\u0142k\u0119\"];\r\n    ShipmentDS -&gt; P3 [label=\"Szczeg\u00f3\u0142y wysy\u0142ki\"];\r\n}\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Graphviz in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz: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\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#graphviz:eNqtVG1v0zAQ\/j5p\/8EKX0BqWV9W0WkwqcsLRdqbmk1oYhNyE7e1ltrBdgdj7L9zThrHzoKYBOmX+u453z3PnS+lS4HzFQp9vl4TkZCvJ3xJE5yhx90dBN\/eHup2u+jjbHIxRfHl9Umoz6WvDP1SHvQnMLtLqUAf0Mmstso8o4xIsCqxIbWd8ZRIkoO993bkXlKZx7V5wZlieE3A7k1Jdk8UlNmZCIqzjsRMdiURdOG5AZL+1AH9QWm+3d1xWJ2dB2FJKq5Z6bJsUv+UuF+bc8K+01SttLniaxcU\/lBEMFA+ZIoqSqRdjlzhXF845z86SKqHrChnQbOMpF4H6T8Jz7iW3nsV9qNRFIK5NvUG43HQ927LO\/2NVBzafVge400OLTJH7wI\/rAlT6ELwhEjJhYe+ZHhOsg+V64bVvtvDhqrxdXwZnqLj86uzYDK7rpWVm3k5MkkGBRDx1UxdNW36KzLposOucccPgF+j19vhfOMdWuNVqZFiuSJpR\/ANS0EVC1Lr8G6kf7Zvvqy90UT\/bO8aiyVl4Bz0DM0t1a0CVZ+e9yqhIsnIC9o1jkbhgdOu4XgcDn0w1ROzf1vnueibhvTf9kwzbti5SEnZEQMdGOhAQ08xw0tywz6xe+gjFw8uemjQQ42eYpZmgI5XNNd9t5q9VSHACqMYLvqzDoIkXKR\/1yGKogN\/39EhOvZ7g8CzqBcMg9iU+Yje0\/QIBX30q\/RJ9ORQMkRbggYQZPyNuIpyS9gQwiq3ne6p8RDC4OPz9ULS5X9bLwdtIz4qPisAC8G\/byPMSm2uwmByOUHRyflnq1QDqPYFiAXPFieKcibdVYK6R\/ZYFq1AAVGYZtIIBACAmRAX7HO2oGKN9eUmoiVJPaKXUModcmce3G0pCihlS2Cw4O7Kerbt\/rwFXY4VYEZkDnqQBs0XrFEI\/bYhUrkFVevYXc5F8voxw5MD7ld5ipWVeKBRJqLCzggvFG7Ntq2ufMhRBpNik2g+txjfk4biFaRtAKZUOjvGvrrtYforAqwKbibGxrk5JvcwXXhOM6raU1izUr3XZzNpK9dWUinxX2qq++JvhNBpXLw9m01JTQKsNrJV1WFDVTPDzatbdpYvSHG7vcAb6+0FQj39Bul6yvg=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>Edytuj Graphviz w VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<hr\/>\n<h2>6. Najlepsze praktyki<\/h2>\n<h3>Dla logicznych DFD<\/h3>\n<ol>\n<li><strong>Skup si\u0119 na procesach biznesowych<\/strong>, a nie na technologii<\/li>\n<li><strong>U\u017cywaj terminologii biznesowej<\/strong> zrozumia\u0142ej dla interesariuszy<\/li>\n<li><strong>Utrzymuj procesy na sp\u00f3jnym poziomie abstrakcji<\/strong><\/li>\n<li><strong>Weryfikuj z u\u017cytkownikami biznesowymi<\/strong> pod k\u0105tem dok\u0142adno\u015bci<\/li>\n<li><strong>Poka\u017c wszystkie g\u0142\u00f3wne przep\u0142ywy danych<\/strong> mi\u0119dzy komponentami<\/li>\n<\/ol>\n<h3>Dla fizycznych DFD<\/h3>\n<ol>\n<li><strong>Do\u0142\u0105cz szczeg\u00f3\u0142y specyficzne dla technologii<\/strong><\/li>\n<li><strong>Uwzgl\u0119dnij wydajno\u015b\u0107 i skalowalno\u015b\u0107<\/strong><\/li>\n<li><strong>Dokumentuj interfejsy systemu<\/strong> wyra\u017anie<\/li>\n<li><strong>Do\u0142\u0105cz obs\u0142ug\u0119 b\u0142\u0119d\u00f3w<\/strong> i procesy odzyskiwania<\/li>\n<li><strong>Dostosuj do rzeczywistej architektury systemu<\/strong><\/li>\n<\/ol>\n<h3>Og\u00f3lne najlepsze praktyki<\/h3>\n<ol>\n<li><strong>Zacznij od diagramu kontekstowego<\/strong><\/li>\n<li><strong>Numeruj procesy hierarchicznie<\/strong><\/li>\n<li><strong>U\u017cywaj znacz\u0105cych nazw<\/strong> dla wszystkich komponent\u00f3w<\/li>\n<li><strong>Unikaj przecinania si\u0119 przep\u0142yw\u00f3w danych<\/strong><\/li>\n<li><strong>Regularnie weryfikuj z interesariuszami<\/strong><\/li>\n<\/ol>\n<hr\/>\n<h2>7. Typowe b\u0142\u0119dy<\/h2>\n<p id=\"reikZmW\"><img alt=\"7 Typowych pu\u0142apek DFD\" class=\"alignnone wp-image-19321 size-full\" decoding=\"async\" height=\"559\" loading=\"lazy\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08.png\" srcset=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08.png 1024w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08-300x164.png 300w, https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08-768x419.png 768w\" width=\"1024\"\/><\/p>\n<h3>B\u0142\u0105d 1: Mieszanie modeli logicznego i fizycznego<\/h3>\n<p>\u274c\u00a0<strong>\u0179le:<\/strong> Dodawanie nazw technologii bazodanowych w logicznym DFD<br \/>\n\u2705\u00a0<strong>Dobrze:<\/strong> Zachowaj logiczny DFD niezale\u017cny od technologii<\/p>\n<h3>B\u0142\u0105d 2: Brakuj\u0105ce przep\u0142ywy danych<\/h3>\n<p>\u274c\u00a0<strong>\u0179le:<\/strong> Pokazywanie tylko jednego kierunku mi\u0119dzy encjami<br \/>\n\u2705\u00a0<strong>Dobrze:<\/strong> Uwzgl\u0119dnij przep\u0142ywy dwukierunkowe tam, gdzie jest to stosowne<\/p>\n<h3>B\u0142\u0105d 3: Zbyt du\u017ca z\u0142o\u017cono\u015b\u0107<\/h3>\n<p>\u274c\u00a0<strong>\u0179le:<\/strong> Umieszczanie 20+ proces\u00f3w na jednym diagramie<br \/>\n\u2705\u00a0<strong>Dobrze:<\/strong> Roz\u0142\u00f3\u017c na wiele skoncentrowanych diagram\u00f3w<\/p>\n<h3>B\u0142\u0105d 4: Nieprawid\u0142owe oznaczanie przep\u0142yw\u00f3w danych<\/h3>\n<p>\u274c\u00a0<strong>B\u0142\u0119dnie:<\/strong>\u00a0\u201eDane\u201d jako etykieta<br \/>\n\u2705\u00a0<strong>Prawid\u0142owo:<\/strong>\u00a0Opisowe etykiety, takie jak \u201eSzczeg\u00f3\u0142y zam\u00f3wienia klienta\u201d<\/p>\n<h3>Pu\u0142apka 5: Nieprawid\u0142owe granice proces\u00f3w<\/h3>\n<p>\u274c\u00a0<strong>B\u0142\u0119dnie:<\/strong>\u00a0Jeden proces wykonuj\u0105cy wiele niezwi\u0105zanych ze sob\u0105 funkcji<br \/>\n\u2705\u00a0<strong>Prawid\u0142owo:<\/strong>\u00a0Osobne procesy dla odr\u0119bnych funkcji<\/p>\n<hr\/>\n<h2>Podsumowanie<\/h2>\n<p>Diagramy przep\u0142ywu danych (DFD) s\u0105 niezb\u0119dnymi narz\u0119dziami do analizy i projektowania system\u00f3w. Zrozumienie r\u00f3\u017cnicy mi\u0119dzy logicznymi a fizycznymi DFD pomaga w skutecznej komunikacji z r\u00f3\u017cnymi stronami zainteresowanymi na r\u00f3\u017cnych etapach cyklu \u017cycia oprogramowania.<\/p>\n<ul>\n<li><strong>Logiczne DFD<\/strong>\u00a0\u0142\u0105cz\u0105 wymagania biznesowe z rozwi\u0105zaniami technicznymi<\/li>\n<li><strong>Fizyczne DFD<\/strong>\u00a0kieruj\u0105 decyzjami dotycz\u0105cymi wdro\u017cenia i wdro\u017cenia<\/li>\n<\/ul>\n<p>U\u017cyj podanych przyk\u0142ad\u00f3w jako szablon\u00f3w dla w\u0142asnych DFD, dostosowuj\u0105c je do specyficznych wymaga\u0144 swojego systemu, jednocze\u015bnie przestrzegaj\u0105c powy\u017cszych najlepszych praktyk.<\/p>\n<hr\/>\n<h2>Dodatkowe zasoby<\/h2>\n<ol>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/ai-gane-and-sarson-dfd-generator-by-visual-paradigm\/#content\"><strong>Generator DFD Gane&#8217;a i Sarsona z wykorzystaniem AI od Visual Paradigm<\/strong><\/a>: Wyja\u015bnia, jak narz\u0119dzia AI Visual Paradigm mog\u0105 generowa\u0107 diagramy DFD Gane&#8217;a i Sarsona na podstawie opis\u00f3w tekstowych.<\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/cn\/a-step-by-step-guide-to-creating-data-flow-diagrams-with-visual-paradigm\/\"><strong>Przewodnik krok po kroku tworzenia diagram\u00f3w przep\u0142ywu danych z Visual Paradigm<\/strong><\/a>: Zawiera tutorial tworzenia DFD za pomoc\u0105 narz\u0119dzia online Visual Paradigm, od rejestracji po udost\u0119pnianie.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/how-to-create-data-flow-diagram\"><strong>Jak stworzy\u0107 diagram przep\u0142ywu danych (DFD)?<\/strong><\/a>: Przewodnik omawiaj\u0105cy, czym jest DFD, jego cel oraz g\u0142\u00f3wne typy (fizyczne i logiczne).<\/li>\n<li><a href=\"https:\/\/blog.visual-paradigm.com\/fa\/beginners-guide-to-ssadm-dfd-diagrams-with-visual-paradigm-online\/\"><strong>Przewodnik dla pocz\u0105tkuj\u0105cych dotycz\u0105cy diagram\u00f3w DFD w stylu SSADM z Visual Paradigm Online<\/strong><\/a>: Wst\u0119pny przewodnik dotycz\u0105cy tworzenia diagram\u00f3w przep\u0142ywu danych w stylu SSADM przy u\u017cyciu Visual Paradigm Online.<\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/tw\/comprehensive-guide-to-data-flow-diagrams-dfd-demystifying-information-flow\/#content\"><strong>Kompleksowy przewodnik po diagramach przep\u0142ywu danych (DFD): Rozszyfrowywanie przep\u0142ywu informacji<\/strong><\/a>: Przegl\u0105d DFD, szczeg\u00f3\u0142owo opisuj\u0105cy ich elementy oraz wyja\u015bniaj\u0105cy, dlaczego Visual Paradigm jest odpowiednim narz\u0119dziem do ich tworzenia.<\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/cn\/mastering-data-flow-diagrams-with-visual-paradigm-a-step-by-step-guide\/#content\"><strong>Opanowanie diagram\u00f3w przep\u0142ywu danych z Visual Paradigm: Przewodnik krok po kroku<\/strong><\/a>: Praktyczny przewodnik wykorzystuj\u0105cy przyk\u0142ady i szablony do nauki tworzenia DFD, z case study takimi jak systemy zakup\u00f3w online.<\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/tw\/understanding-logical-dfd-vs-physical-dfd-when-and-why-we-need-them\/#respond\"><strong>Zrozumienie r\u00f3\u017cnicy mi\u0119dzy DFD logicznym a fizycznym: Kiedy i dlaczego s\u0105 nam potrzebne<\/strong><\/a>: Wyja\u015bnia r\u00f3\u017cnice, cele i odpowiednie przypadki u\u017cycia dla diagram\u00f3w przep\u0142ywu danych logicznych i fizycznych.<\/li>\n<li><a href=\"https:\/\/blog.visual-paradigm.com\/fa\/beginners-guide-to-data-flow-diagrams-dfd-with-visual-paradigm-online\/#chgwngy_ayjad_yk_dyagram_jryan_dadh_ba_Visual_Paradigm_Online\"><strong>Przewodnik dla pocz\u0105tkuj\u0105cych do diagram\u00f3w przep\u0142ywu danych (DFD) z Visual Paradigm Online<\/strong><\/a>: Przyjazny dla pocz\u0105tkuj\u0105cych tutorial prowadz\u0105cy przez kroki tworzenia DFD z Visual Paradigm Online.<\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/category\/dfd\/\"><strong>Archiwum DFD \u2013 Przewodniki Visual Paradigm<\/strong><\/a>: Kolekcja artyku\u0142\u00f3w na tematy DFD, w tym generatory AI, walidacja, r\u00f3wnowa\u017cenie i poziomy.<\/li>\n<li><a href=\"https:\/\/blog.visual-paradigm.com\/cn\/beginners-guide-to-data-flow-diagrams-dfd-with-visual-paradigm-online\/#bu_zhou_6_bao_cun_yu_xiang\"><strong>Przewodnik pocz\u0105tkuj\u0105cego do diagram\u00f3w przep\u0142ywu danych (DFD) z Visual Paradigm Online<\/strong><\/a>: Szczeg\u00f3\u0142owo opisuje krok po kroku proces tworzenia DFD, w tym jego kluczowe komponenty i spos\u00f3b u\u017cywania szablon\u00f3w.<\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/what-is-data-flow-diagram\/#dfd\"><strong>Rysuj DFD z najlepszym narz\u0119dziem DFD<\/strong><\/a>: Omawia graficzn\u0105 reprezentacj\u0119 przep\u0142ywu danych, szczeg\u00f3\u0142owo opisuje DFD logiczne vs. fizyczne i analizuje korzy\u015bci ka\u017cdego typu.<\/li>\n<li>\n<p class=\"\"><a href=\"https:\/\/blog.visual-paradigm.com\/id\/beginners-guide-to-data-flow-diagrams-dfd-with-visual-paradigm-online\/\"><strong>Przewodnik dla pocz\u0105tkuj\u0105cych do diagram\u00f3w przep\u0142ywu danych (DFD) z Visual Paradigm Online<\/strong><\/a>: Przewodnik dla pocz\u0105tkuj\u0105cych w j\u0119zyku indonezyjskim do DFD, przedstawiaj\u0105cy komponenty i krok po kroku proces tworzenia w Visual Paradigm Online.<\/p>\n<\/li>\n<\/ol>\n<hr\/>\n<p class=\"\"><em>Ten przewodnik dostarcza podstaw do tworzenia skutecznych DFD. Pami\u0119taj, \u017ce dobre diagramy ewoluuj\u0105 poprzez iteracje i feedback od interesariuszy.<\/em><em><br \/>\n<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. Wprowadzenie do diagram\u00f3w przep\u0142ywu danych Diagram przep\u0142ywu danych (DFD) to graficzna reprezentacja sposobu, w jaki dane przemieszczaj\u0105 si\u0119 przez<\/p>\n","protected":false},"author":11,"featured_media":12316,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","source_url":"","source_h1_title":"","fifu_image_url":"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08.png","fifu_image_alt":"","_fifu_image_alt":"","fifu_alt":"","_fifu_alt":"","fifu_image_title":"","_fifu_image_title":"","fifu_input_alt":"","vp_image_hash":"","footnotes":""},"categories":[120],"tags":[],"asset-category":[],"class_list":["post-12315","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dfd"],"source_url":"","source_h1_title":"","fifu_image_url":"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08.png","fifu_image_alt":"","vp_image_hash":"","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kompleksowy przewodnik po DFD: Logika vs Fizyka z przyk\u0142adami w Graphviz - Cybermediana<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kompleksowy przewodnik po DFD: Logika vs Fizyka z przyk\u0142adami w Graphviz - Cybermediana\" \/>\n<meta property=\"og:description\" content=\"1. Wprowadzenie do diagram\u00f3w przep\u0142ywu danych Diagram przep\u0142ywu danych (DFD) to graficzna reprezentacja sposobu, w jaki dane przemieszczaj\u0105 si\u0119 przez\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/\" \/>\n<meta property=\"og:site_name\" content=\"Cybermediana\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-08T03:44:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-03T15:27:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08.png\" \/><meta property=\"og:image\" content=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"559\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"curtis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2026\/07\/img_6a4dc87f32d08.png\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"curtis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minut\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/\"},\"author\":{\"name\":\"curtis\",\"@id\":\"https:\/\/www.cybermedian.com\/pl\/#\/schema\/person\/016578d8c88d35825fd3fbafc4f76b4d\"},\"headline\":\"Kompleksowy przewodnik po DFD: Logika vs Fizyka z przyk\u0142adami w Graphviz\",\"datePublished\":\"2026-07-08T03:44:22+00:00\",\"dateModified\":\"2026-09-03T15:27:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/\"},\"wordCount\":1224,\"image\":{\"@id\":\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.cybermedian.com\/pl\/wp-content\/uploads\/sites\/16\/2026\/07\/img_6a4dc87f32d08.png\",\"articleSection\":[\"DFD\"],\"inLanguage\":\"pl-PL\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/\",\"url\":\"https:\/\/www.cybermedian.com\/pl\/comprehensive-guide-to-dfd-logical-vs-physical-with-graphviz-examples\/\",\"name\":\"Kompleksowy przewodnik po DFD: Logika vs Fizyka z przyk\u0142adami w Graphviz - 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