Module4-1RDREQM需求开发与需求管理(PPT 45页).ppt

Module4-1RDREQM需求开发与需求管理(PPT 45页)
Requirement development (RD) is an iterative task, with iterations continuing as needed until the abstract notion of the systems objectives and needed capability have been translated into the detailed requirements necessary for implementation. The RD Process involves transforming the stakeholders’ requirement-driven view of desired services into a technical specification for the products that deliver those services.
Purpose of RD
3. Requirement Management
4. Requirement Review
2. Use Case and Prototype
1. Requirement Development
Overview
5. ITO Terms
Roles and Responsibility
Roles
Responsibilities
System Analyst
(SA)
Elicit requirements from the clients, analyze and establish the requirement spec;
Manage requirements.
Relevant
Stakeholders
(., sales, client representative)
Impacted participants that review, commit to software requirements.
Procedures for Requirement Development
Elicit and Develop Customer Requirements
2. Develop and Validate Product Requirements
Develop Customers Requirements
The SA determine the method of the requirement elicit:
Questionnaires问卷,
Interviews面谈,
Operational scenarios操作场景 obtained from end users.
stakeholders discuss the requirement information to eliminate misunderstandings and to reach the complete and consistent requirements.
1. Develop Customers Requirements
3. The SA develop the Customer Requirement Specification ,it contains:
The product instruction
The product constraints
The product function requirement
The product non-function requirement
Interface, software, hardware, quality and so on
2. Analyze and Validate Requirements
1. The SA establish a Definition of Required Functionality.
Establish actions, sequence, inputs, outputs, or other information that communicates the manner in which the product will be used. (USE CASE )
2. The SA validate requirements with comprehensive methods ;(Prototypes)
3. The SA develop the So