Chapter 5. Evolutionary Requirements

 

Ours is a world where people don't know what they want and are willing to go through hell to get it.

 
 --Don Marquis

Objectives

  • Motivate doing evolutionary requirements.

  • Define the FURPS+ model.

  • Define the UP requirements artifacts.

Introduction

This chapter briefly introduces iterative and evolutionary requirements, and describes specific UP requirement artifacts, to provide context for the coming requirements-oriented chapters.

Note

other UP practices p. 33

In also explores some evidence illustrating the futility and unskillfulness of waterfall-oriented requirements analysis approaches, in which there is an attempt to define so-called “complete” specifications before starting development.

Definition: Requirements

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