老辣椒 2021-10-18 20:14 采纳率: 0%
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Three Levels of Software requirements

Software requirements include three levels of requirements: 

Business Requirement: Shows the organization or customer requirements for the high level of the system and product, explained by the project vision and scope documents.

User Requirement: Describes the tasks that the user has to do with the system and product,  explained by  the use-case document.

Functional Requirements  and Non Functional Requirements: Functional Requirement defines the software functionality that the developer must implement, and the user completes their work and tasks through these functions to meet the needs of the business. Non Functional Requirements describes the attributes of the system, including quality attributes, operation interface, performance, constraints, standards and specifications that should be followed. Functional Requirements  and Non Functional Requirements are explained by software requirements specifications and models.

Types of Software requirements

Relationships among several types of requirements information

 

 

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  • 踢足球的阿坤 2023-02-17 22:29
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    需求信息之间的关系可以表示为一张脑图,用来说明需求信息之间的关联关系,以及每个需求信息在软件开发项目中的作用。需求脑图中每个节点可以表示一个需求,各节点之间可以用箭头表示上下级关系。

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