The Rational Unified Process

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EECS810: Software Engineering

What is the Rational Unified Process?

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Static structure

• The Rational Unified Process model is built on three entities: roles, activities, and artifacts

• Workflows relate activities, artifacts, and roles in sequences that produce valuable results

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Roles, activities, artifacts

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Individuals can play multiple roles

Example of a workflow

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Dynamic structure: incremental and iterative development • An incremental and iterative process

breaks a development cycle into a succession of iterations

• A development cycle is divided into a sequence of four phases that partition the sequence of iterations: inception, elaboration, construction, and transition

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From sequential to an iterative cycle

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Activities across one development cycle

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Benefits of an iteration approach• Accommodates changes in

requirements and in implementation strategy

• Confronts and mitigates risks as early as possible

• Allows the development organization to grow, to learn, and to improve

• Focuses on real, tangible objectives

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Architecture View

• System architecture is used in the Unified Process as a primary artifact for conceptualizing, constructing, managing, and evolving the system under development

• Architecture is a complex concept that is best represented by multiple, coordinated architectural views

• An architectural view is an abstraction of a model that focuses on its structure and its essential elements

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Typical iteration plans

• Inception phase: to define the project vision and the business case

• Elaboration phase: to build an architectural prototype

• Construction phase: to implement the system

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Defining the product vision and the business case

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Building an architectural prototype

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Implementing the system

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Summary

• Rational Unified Process, or RUP, is a configurable software development process platform that delivers practices and a configurable architecture

• Enables the developers to select and deploy only the process components they need for each stage of their project

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