{"id":619,"date":"2022-01-26T01:52:47","date_gmt":"2022-01-26T01:52:47","guid":{"rendered":"https:\/\/www.cybermedian.com\/pt\/?p=619"},"modified":"2022-04-01T11:09:42","modified_gmt":"2022-04-01T03:09:42","slug":"what-is-the-relationship-between-system-context-diagram-and-dfd","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/pt\/what-is-the-relationship-between-system-context-diagram-and-dfd\/","title":{"rendered":"Qual \u00e9 a rela\u00e7\u00e3o entre o diagrama de contexto do sistema e o DFD?"},"content":{"rendered":"<section class=\"section section--body section--last\">\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<div class=\"entry-content clearfix\">\n<section class=\"section section--body section--first\">\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<p id=\"d84e\" class=\"graf graf--p graf-after--h3\">O\u00a0\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/knowledge\/system-context-diagram\/what-is-system-context-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/knowledge\/system-context-diagram\/what-is-system-context-diagram\/\">diagrama de contexto do sistema<\/a>\u00a0\u00a0(tamb\u00e9m conhecido como n\u00edvel 0\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/what-is-data-flow-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/data-flow-diagram\/what-is-data-flow-diagram\/\">\u00a0DFD<\/a>\u00a0) \u00e9 o n\u00edvel mais alto no diagrama de fluxo de dados e cont\u00e9m apenas um \u00fanico processo representando todo o sistema que estabelece o contexto e os limites do sistema a ser modelado.\u00a0Identifica o fluxo de informa\u00e7\u00e3o entre o sistema e entidades externas, nomeadamente atores.<\/p>\n<p id=\"d9bb\" class=\"graf graf--p graf-after--p\">Os diagramas de contexto geralmente s\u00e3o inclu\u00eddos nos documentos de requisitos.\u00a0Deve ser lido por todas as partes interessadas e, portanto, deve ser escrito em linguagem simples para que as partes interessadas possam entender o projeto.<\/p>\n<p id=\"ae15\" class=\"graf graf--p graf-after--p\">Aqui est\u00e1 um diagrama de contexto de exemplo para um sistema de ordem de venda:<\/p>\n<figure id=\"30db\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0mQyZUktURYYDyNCp.png\" data-image-id=\"0*mQyZUktURYYDyNCp.png\" data-width=\"662\" data-height=\"452\" data-is-featured=\"true\" \/><\/figure>\n<p id=\"36b7\" class=\"graf graf--p graf-after--figure\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/6b20da6b-c7ad-4af6-8438-afd909b6d156.xml&amp;name=Sales%20Order%20System\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/diagrams.visual-paradigm.com\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/6b20da6b-c7ad-4af6-8438-afd909b6d156.xml&amp;name=Sales%20Order%20System\">Editar este diagrama<\/a><\/p>\n<h3 id=\"03ad\" class=\"graf graf--h3 graf-after--p\"><span id=\"The_purpose_of_the_system_context_diagram\">O objetivo do diagrama de contexto do sistema<\/span><\/h3>\n<p id=\"065e\" class=\"graf graf--p graf-after--h3\">O objetivo de um diagrama de contexto do sistema \u00e9 focar a aten\u00e7\u00e3o em fatores e eventos externos que devem ser considerados ao desenvolver um conjunto de requisitos e restri\u00e7\u00f5es do sistema.\u00a0Os mapas de contexto do sistema s\u00e3o frequentemente usados \u200b\u200bno in\u00edcio de um projeto para determinar o escopo da investiga\u00e7\u00e3o.<\/p>\n<p id=\"4acb\" class=\"graf graf--p graf-after--p\">Um diagrama de contexto do sistema representa todas as entidades externas que podem interagir com o sistema.\u00a0Todo o sistema de software parece um \u00fanico processo.\u00a0Tal diagrama representa um sistema no centro, sem os detalhes de sua estrutura interna, cercado por todas as entidades externas e sistemas interativos no ambiente.<\/p>\n<h4 id=\"787f\" class=\"graf graf--h4 graf-after--p\"><span id=\"What_is_Top-Down_Decomposition\">O que \u00e9 decomposi\u00e7\u00e3o de cima para baixo?<\/span><\/h4>\n<p id=\"8d22\" class=\"graf graf--p graf-after--h4\">No projeto top-down, a vis\u00e3o geral do sistema \u00e9 projetada, especificando, mas n\u00e3o detalhando nenhum n\u00edvel de subsistema.\u00a0Em seguida, cada subsistema \u00e9 refinado com mais detalhes, por exemplo, \u00e0s vezes dividido em muitos n\u00edveis diferentes de subsistema, de modo a decompor toda a especifica\u00e7\u00e3o em elementos b\u00e1sicos.<\/p>\n<p id=\"066a\" class=\"graf graf--p graf-after--p\">O principal objetivo do design top-down \u00e9 decompor um sistema em partes menores para entender seus subsistemas.\u00a0Uma vez que esses elementos b\u00e1sicos s\u00e3o identificados, eles podem ser incorporados mais facilmente em m\u00f3dulos de computador.\u00a0Uma vez que os m\u00f3dulos s\u00e3o constru\u00eddos, voc\u00ea pode facilmente junt\u00e1-los e construir todo o sistema a partir desses elementos individuais.<\/p>\n<h3 id=\"f120\" class=\"graf graf--h3 graf-after--p\"><span id=\"Top-Level_Context-Level_Diagram\">Diagrama de n\u00edvel de contexto de n\u00edvel superior<\/span><\/h3>\n<p id=\"9343\" class=\"graf graf--p graf-after--h3\">Um diagrama de contexto fornece uma vis\u00e3o geral e \u00e9 o n\u00edvel mais alto em um diagrama de fluxo de dados, contendo apenas um processo representando todo o sistema.\u00a0Ele deve ser dividido em processos principais que fornecem mais detalhes e cada processo principal pode ser dividido ainda mais para fornecer mais detalhes.<\/p>\n<ul class=\"postList\">\n<li id=\"31a6\" class=\"graf graf--li graf-after--p\">Todas as entidades externas s\u00e3o mostradas no diagrama de contexto, bem como os principais fluxos de dados de e para elas.<\/li>\n<li id=\"2823\" class=\"graf graf--li graf-after--li\">O diagrama n\u00e3o cont\u00e9m nenhum armazenamento de dados.<\/li>\n<li id=\"06ed\" class=\"graf graf--li graf-after--li\">O processo \u00fanico no diagrama de n\u00edvel de contexto, representando todo o sistema, pode ser explodido para incluir os principais processos do sistema no diagrama de n\u00edvel seguinte, denominado diagrama 0.<\/li>\n<\/ul>\n<figure id=\"ae36\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0UUy6B-hUvPU0IwS5.png\" data-image-id=\"0*UUy6B-hUvPU0IwS5.png\" data-width=\"478\" data-height=\"245\" \/><\/figure>\n<h3 id=\"f581\" class=\"graf graf--h3 graf-after--figure\"><span id=\"Level_1_DFD\">N\u00edvel 1 DFD<\/span><\/h3>\n<p id=\"1211\" class=\"graf graf--p graf-after--h3\">Os processos no diagrama 0 (com um n\u00famero inteiro) podem ser expandidos ainda mais para representar detalhes das atividades de processamento.\u00a0O exemplo abaixo mostra o pr\u00f3ximo n\u00edvel ((Diagrama 1) de explos\u00e3o do processo.<\/p>\n<p id=\"de98\" class=\"graf graf--p graf-after--p\">Observe que:<\/p>\n<p id=\"29f2\" class=\"graf graf--p graf-after--p\">Embora o DFD de n\u00edvel 1 a seguir tenha apenas tr\u00eas processos, existem algumas entradas e entradas dos processos para as entidades externas e isso pode resultar em algumas linhas cruzadas entre elas no diagrama;\u00a0para evitar esse problema, poder\u00edamos usar (visualiza\u00e7\u00e3o principal e auxiliar) v\u00e1rias visualiza\u00e7\u00f5es da mesma entidade externa no DFD.<\/p>\n<figure id=\"43eb\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0T29bIDs3UALgHp9a.png\" data-image-id=\"0*T29bIDs3UALgHp9a.png\" data-width=\"715\" data-height=\"655\" \/><\/figure>\n<h3 id=\"3db1\" class=\"graf graf--h3 graf-after--figure\"><span id=\"Level_2_DFD\">N\u00edvel 2 DFD<\/span><\/h3>\n<p id=\"8e78\" class=\"graf graf--p graf-after--h3\">Se um processo com muitos fluxos de dados vinculando algumas entidades externas, poder\u00edamos primeiro extrair esse processo espec\u00edfico e as entidades externas associadas em um diagrama separado semelhante a um diagrama de contexto, antes de refinar o processo em um n\u00edvel separado de DFD;\u00a0e desta forma voc\u00ea pode garantir a consist\u00eancia entre eles muito mais f\u00e1cil.<\/p>\n<figure id=\"262c\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0LKmM5RYhHrpTrGLt.png\" data-image-id=\"0*LKmM5RYhHrpTrGLt.png\" data-width=\"794\" data-height=\"690\" \/><\/figure>\n<h4 id=\"d3e4\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Model_Consistency_of_DFD_Between_Levels\">Consist\u00eancia do modelo de DFD entre n\u00edveis<\/span><\/h4>\n<p id=\"a62a\" class=\"graf graf--p graf-after--h4\">Ao realizar a decomposi\u00e7\u00e3o de cima para baixo de um DFD para DFDs de n\u00edvel inferior, as entradas e sa\u00eddas devem ser conservadas entre os n\u00edveis de DFDs.\u00a0Por exemplo, o n\u00edvel n &amp; n+1 deve ter as mesmas entradas e sa\u00eddas<\/p>\n<figure id=\"4af0\" class=\"graf graf--figure graf-after--p graf--trailing\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0okOL184fBcmESu1r.png\" data-image-id=\"0*okOL184fBcmESu1r.png\" data-width=\"949\" data-height=\"660\" \/><\/figure>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"section section--body\">\n<div class=\"section-divider\">\n<hr class=\"section-divider\" \/>\n<\/div>\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<h4 id=\"cb88\" class=\"graf graf--h4 graf--leading\"><span id=\"Learn_More_by_Examples\">Saiba mais por exemplos<\/span><\/h4>\n<p id=\"ef99\" class=\"graf graf--p graf-after--h4\">Precisa de alguma inspira\u00e7\u00e3o?\u00a0Aqui est\u00e3o alguns exemplos de diagrama de fluxo de dados abaixo para ajudar voc\u00ea a come\u00e7ar.<\/p>\n<p id=\"175b\" class=\"graf graf--p graf-after--p\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/dfd-maker\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams\/features\/dfd-maker\/\">Clique em um diagrama<\/a>\u00a0\u00a0para visualiz\u00e1-lo ou clique no bot\u00e3o editar para iniciar a edi\u00e7\u00e3o.<\/p>\n<p id=\"f439\" class=\"graf graf--p graf-after--p\">(*Powered by\u00a0\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"http:\/\/online.visual-paradigm.com\/\" target=\"_blank\" rel=\"noopener\" data-href=\"http:\/\/online.visual-paradigm.com\">Visual Paradigm Online<\/a>\u00a0)<\/p>\n<figure id=\"fde5\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0mQt3XCwqFUuUiyXo.png\" data-image-id=\"0*mQt3XCwqFUuUiyXo.png\" data-width=\"725\" data-height=\"604\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"b757\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/3c259936-5176-4c9d-baf2-59cfb3854d4c.xml&amp;name=ATM%20System%20-%20Context%20Model\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/3c259936-5176-4c9d-baf2-59cfb3854d4c.xml&amp;name=ATM%20System%20-%20Context%20Model\">Sistema ATM &#8211; Modelo de Contexto<\/a><\/li>\n<\/ul>\n<figure id=\"ca85\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0MSTVHV2eKOZuwb-2.png\" data-image-id=\"0*MSTVHV2eKOZuwb-2.png\" data-width=\"664\" data-height=\"453\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"61b5\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/6b20da6b-c7ad-4af6-8438-afd909b6d156.xml&amp;name=Sales%20Order%20System\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/6b20da6b-c7ad-4af6-8438-afd909b6d156.xml&amp;name=Sales%20Order%20System\">Sistema de Pedidos de Vendas<\/a><\/li>\n<\/ul>\n<figure id=\"b678\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0lwRLODbP-SSsFNs.png\" data-image-id=\"0*lwRLODbP-SSsFNs_.png\" data-width=\"825\" data-height=\"706\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"2939\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/a71bc1a8-eba4-431a-b3bc-b45aaabf1612.xml&amp;name=Ordering%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/a71bc1a8-eba4-431a-b3bc-b45aaabf1612.xml&amp;name=Ordering%20System%20Context%20Diagram\">Diagrama de contexto do sistema de pedidos<\/a><\/li>\n<\/ul>\n<figure id=\"2cc1\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/00Hi2dnyOsfjyfoFP.png\" data-image-id=\"0*0Hi2dnyOsfjyfoFP.png\" data-width=\"795\" data-height=\"638\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"5f21\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/02af9c12-b2b9-40f2-b1ea-19015ec730da.xml&amp;name=Books%20Rental%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/02af9c12-b2b9-40f2-b1ea-19015ec730da.xml&amp;name=Books%20Rental%20System%20Context%20Diagram\">Diagrama de contexto do sistema de aluguel de livros<\/a><\/li>\n<\/ul>\n<figure id=\"9cf1\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0Sn5wqDhNGw9KUSIB.png\" data-image-id=\"0*Sn5wqDhNGw9KUSIB.png\" data-width=\"899\" data-height=\"710\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"86c4\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/1ae8f4ac-cbd5-4c57-8e94-f2d70a57925d.xml&amp;name=Chemical%20Tracking%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/1ae8f4ac-cbd5-4c57-8e94-f2d70a57925d.xml&amp;name=Chemical%20Tracking%20System%20Context%20Diagram\">Diagrama de Contexto do Sistema de Rastreamento Qu\u00edmico<\/a><\/li>\n<\/ul>\n<figure id=\"3c0c\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0GIuPIkSiGoSaxav8.png\" data-image-id=\"0*GIuPIkSiGoSaxav8.png\" data-width=\"955\" data-height=\"604\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"a049\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/acd02024-ac0c-4a6b-a049-670cf7c11a9c.xml&amp;name=Profiling%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/acd02024-ac0c-4a6b-a049-670cf7c11a9c.xml&amp;name=Profiling%20System%20Context%20Diagram\">Diagrama de contexto do sistema de cria\u00e7\u00e3o de perfil<\/a><\/li>\n<\/ul>\n<figure id=\"7e9c\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0ocj47dJjzb9lNmHO.png\" data-image-id=\"0*ocj47dJjzb9lNmHO.png\" data-width=\"1000\" data-height=\"702\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"8d6a\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/19cdbd61-08d7-48c9-be99-b1f323766cd7.xml&amp;name=Online%20Community%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/19cdbd61-08d7-48c9-be99-b1f323766cd7.xml&amp;name=Online%20Community%20System%20Context%20Diagram\">Diagrama de contexto do sistema da comunidade online<\/a><\/li>\n<\/ul>\n<figure id=\"5a80\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/07qExNggNX-tqsDpM.png\" data-image-id=\"0*7qExNggNX-tqsDpM.png\" data-width=\"937\" data-height=\"707\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"64e9\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/0fbae7cf-d582-4f2b-9206-272b4b4014ca.xml&amp;name=Online%20Shopping%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/0fbae7cf-d582-4f2b-9206-272b4b4014ca.xml&amp;name=Online%20Shopping%20System%20Context%20Diagram\">Diagrama de contexto do sistema de compras on-line<\/a><\/li>\n<\/ul>\n<figure id=\"45ad\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0_rX3CkaNVZFSB6d3.png\" data-image-id=\"0*_rX3CkaNVZFSB6d3.png\" data-width=\"750\" data-height=\"580\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"f2d4\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/34b14c69-a7c0-4081-aa4d-b8428c225539.xml&amp;name=Booking%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/34b14c69-a7c0-4081-aa4d-b8428c225539.xml&amp;name=Booking%20System%20Context%20Diagram\">Diagrama de contexto do sistema de reservas<\/a><\/li>\n<\/ul>\n<figure id=\"4635\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0z5kh47gwsGtsv6C1.png\" data-image-id=\"0*z5kh47gwsGtsv6C1.png\" data-width=\"785\" data-height=\"490\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"f79f\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/d98de5da-e6fd-4049-ae8f-53bdd95233c0.xml&amp;name=Restaurant%20System%20Context%20Diagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/d98de5da-e6fd-4049-ae8f-53bdd95233c0.xml&amp;name=Restaurant%20System%20Context%20Diagram\">Diagrama de contexto do sistema de restaurante<\/a><\/li>\n<\/ul>\n<figure id=\"14ff\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/07yRkbSfBw7VXqJVL.png\" data-image-id=\"0*7yRkbSfBw7VXqJVL.png\" data-width=\"1022\" data-height=\"758\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"d72f\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/0997d2b1-8dfd-493e-bb88-ef31a42bc3da.xml&amp;name=Banking%20System%20Context%20Diagram%20\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/app\/diagrams\/#diagram:proj=0&amp;type=SystemContextDiagram&amp;gallery=\/repository\/0997d2b1-8dfd-493e-bb88-ef31a42bc3da.xml&amp;name=Banking%20System%20Context%20Diagram%20\">Diagrama de Contexto do Sistema Banc\u00e1rio<\/a><\/li>\n<\/ul>\n<figure id=\"70fc\" class=\"graf graf--figure graf-after--li graf--trailing\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0ld34IXYpIeE4SaNH.png\" data-image-id=\"0*ld34IXYpIeE4SaNH.png\" data-width=\"571\" data-height=\"670\" \/><\/figure>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"section section--body section--last\">\n<div class=\"section-divider\">\n<hr class=\"section-divider\" \/>\n<\/div>\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<h4 id=\"ef93\" class=\"graf graf--h4 graf--leading\"><span id=\"DFD_Templates_Online_Powered_by_Visual_Paradigm_Online\">Modelos DFD Online (* Powered by\u00a0\u00a0<a class=\"markup--anchor markup--h4-anchor\" href=\"https:\/\/www.visual-paradigm.com\/solution\/drawdfd\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/solution\/drawdfd\/\">Visual Paradigm Online<\/a>\u00a0)<\/span><\/h4>\n<figure id=\"9c5f\" class=\"graf graf--figure graf-after--h4\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0nYMR_zGCKmt998tS.png\" data-image-id=\"0*nYMR_zGCKmt998tS.png\" data-width=\"653\" data-height=\"469\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"9bce\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/8c2c19d0-cd9d-4e04-8192-ff0a8c6bea8c.xml&amp;name=Securities%20Trading%20Platform\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/8c2c19d0-cd9d-4e04-8192-ff0a8c6bea8c.xml&amp;name=Securities%20Trading%20Platform\"><strong class=\"markup--strong markup--li-strong\">Plataforma de Negocia\u00e7\u00e3o de Valores Mobili\u00e1rios<\/strong><\/a><\/li>\n<\/ul>\n<figure id=\"b1ad\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0mo0lDR6HBpSijBau.png\" data-image-id=\"0*mo0lDR6HBpSijBau.png\" data-width=\"605\" data-height=\"422\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"28a7\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/2e409d26-3345-4516-acde-c36b59fa3e0b.xml&amp;name=Food%20Ordering%20System\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/2e409d26-3345-4516-acde-c36b59fa3e0b.xml&amp;name=Food%20Ordering%20System\"><strong class=\"markup--strong markup--li-strong\">Sistema de pedidos de alimentos<\/strong><\/a><\/li>\n<\/ul>\n<figure id=\"f0fe\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0JckWOYJcnxlete2P.png\" data-image-id=\"0*JckWOYJcnxlete2P.png\" data-width=\"757\" data-height=\"529\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"c997\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/6963afef-4946-42f3-9117-f089fa70cfc1.xml&amp;name=Customer%20Service%20System%20%28Railway%20Company%29\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/6963afef-4946-42f3-9117-f089fa70cfc1.xml&amp;name=Customer%20Service%20System%20(Railway%20Company)\"><strong class=\"markup--strong markup--li-strong\">Sistema de Atendimento ao Cliente (Companhia Ferrovi\u00e1ria)<\/strong><\/a><\/li>\n<\/ul>\n<figure id=\"b898\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/052UHjctJ6HMkfSDe.png\" data-image-id=\"0*52UHjctJ6HMkfSDe.png\" data-width=\"716\" data-height=\"560\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"ec8b\" class=\"graf graf--li graf-after--figure\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/0640ff0f-f7f8-4327-a735-94b451a6fd88.xml&amp;name=Supermarket%20App\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/0640ff0f-f7f8-4327-a735-94b451a6fd88.xml&amp;name=Supermarket%20App\"><strong class=\"markup--strong markup--li-strong\">Aplicativo de supermercado<\/strong><\/a><\/li>\n<\/ul>\n<figure id=\"62f6\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/pt\/wp-content\/uploads\/sites\/11\/2022\/01\/0fIbs6BILiTtatqa.png\" data-image-id=\"0*fIbs6BILiTtatqa-.png\" data-width=\"637\" data-height=\"369\" \/><\/figure>\n<ul class=\"postList\">\n<li id=\"662f\" class=\"graf graf--li graf-after--figure graf--trailing\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/3f0b7361-8afd-463e-b1e2-e5a54d5207b3.xml&amp;name=Vehicle%20Maintenance%20Depot\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=DataFlowDiagram&amp;gallery=\/repository\/3f0b7361-8afd-463e-b1e2-e5a54d5207b3.xml&amp;name=Vehicle%20Maintenance%20Depot\"><strong class=\"markup--strong markup--li-strong\">Dep\u00f3sito de manuten\u00e7\u00e3o de ve\u00edculos<\/strong><\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<footer class=\"entry-footer\">\n<div class=\"entry-categories clearfix\"><\/div>\n<\/footer>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>O diagrama de contexto mostra o sistema considerado como um \u00fanico processo de alto n\u00edvel, e depois mostra a rela\u00e7\u00e3o do sistema com outras entidades externas (sistemas, grupos organizacionais, armazenamento de dados externos, etc.). Outro nome para um diagrama de contexto \u00e9 um gr\u00e1fico de fluxo de dados em n\u00edvel de contexto ou DFD de n\u00edvel 0. <\/p>\n","protected":false},"author":1,"featured_media":834,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[13,5],"tags":[52,63,62,53],"class_list":["post-619","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-diagrams","category-software-engineering","tag-cn-done","tag-es-done","tag-ja-done","tag-tw-done"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qual \u00e9 a rela\u00e7\u00e3o entre o diagrama de contexto do sistema e o DFD? - Cibermediano<\/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\/pt\/what-is-the-relationship-between-system-context-diagram-and-dfd\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qual \u00e9 a rela\u00e7\u00e3o entre o diagrama de contexto do sistema e o DFD? - Cibermediano\" \/>\n<meta property=\"og:description\" content=\"O diagrama de contexto mostra o sistema considerado como um \u00fanico processo de alto n\u00edvel, e depois mostra a rela\u00e7\u00e3o do sistema com outras entidades externas (sistemas, grupos organizacionais, armazenamento de dados externos, etc.). 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