Ch28 - Recall The Team Skills 1. 2. 3. 4. 5. 6. Analyzing...

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Recall The Team Skills 1. Analyzing the Problem 2. Understanding User and Stakeholder Needs 3. Defining the System 4. Managing Scope 5. Refining the System Definition 6. Building the Right System From Use Cases to Implementation From Use Cases to Test Cases Tracing Requirements Managing Change Assessing Requirements Quality
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Chapter 28 Managing Change
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Why Do Requirements Change? A requirements management process can be useful only if it recognizes and addresses the issue of change. There are several reasons for the inevitability of changes to the requirements. Some of these reasons are internal factors and may be under our control But many of them are external factors and are outside the control of the developers and the users
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External Factors External factors are those change agents over which the project team has little or no control. Changes occur because of : a change to the problem we attempting to solve the identity of the users changed The users changed their minds or their perceptions about what they wanted the system to do The external environment has changed, which creates new constraints and/or new opportunities. The existence of a new system causes the requirements for the system itself to change. We can't prevent change, but we can manage it.
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We failed to ask the right people the right questions at the right time during the initial requirements gathering effort. We failed to create a practical process to help manage changes to the requirements that would normally have happened on an incremental basis. Iterating from requirements to design causes
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This document was uploaded on 01/17/2012.

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Ch28 - Recall The Team Skills 1. 2. 3. 4. 5. 6. Analyzing...

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