掌握用例建模:软件开发与系统分析的全面指南

掌握用例建模:软件开发与系统分析的全面指南

Use case modeling is a technique used to capture and describe the interactions between users (actors) and a system or software application. It helps to define the requirements of a system from a user’s perspective and to document the functionality that the system needs to provide. Use case modeling is an essential part of software development and is widely used in the field of business analysis.

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掌握实体关系图:设计高效数据模型的全面指南

掌握实体关系图:设计高效数据模型的全面指南

In the realm of data modeling and database design, the entity-relationship diagram (ERD) is an essential tool that plays a vital role. It serves as a visual representation of data, aiding in the description of the relationships between entities and their attributes. By displaying the relationships between entities in a clear and concise manner, ERDs provide an excellent means of modeling intricate systems and identifying how different entities are interconnected.

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