Yazd University, Electrical and Computer Engineering Department Course Title: Advanced Software Engineering By: Mohammad Ali Zare Chahooki The Rational Unified Process (RUP) An Architecture-Centric Process

The Importance of Models  A large part of the RUP focuses on modeling.  Models help us understand both the:  problem and  solution.  The model is not the reality but best models are ones that stick very close to reality 2

Architecture Suppose the task : describing a system so that designers, programmers, users, and managers would be able to do the following:  Understand what the system does  Understand how the system works  Be able to work on one piece of the system  Extend the system  Reuse part of the system to build another one 3

Architecture Multiple Views For a building, different types of blueprints are used to represent different aspects of the architecture:  Floor plans  Elevations  Electrical cabling  Water pipes, central heating, and ventilation  The look of the building in its environment (in sketches) 4

The 4+1 View Model of Architecture 5

1) The Logical View  It is an abstraction of the design model and identifies:  major design packages/subsystems, and  classes 6

The 4+1 View Model of Architecture 7

2) The Implementation View  It addresses the issues of  ease of development,  management of software assets,  reuse 8

The 4+1 View Model of Architecture 3) The Process View  This view illustrates the process decomposition of the system, including the mapping of classes and subsystems on to processes and threads. 9

The 4+1 View Model of Architecture 10

The 4+1 View Model of Architecture 4) The Deployment View  Addresses:  how the various executables and other runtime components  are mapped to the underlying platforms or computing nodes. 11

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The 4+1 View Model of Architecture 5) The Use-Case View  It contains a few key scenarios or use cases.  Initially,  are used to drive the discovery and design of the architecture in the inception and elaboration phases,  later  they will be used to validate the different views.  For example as a starting point for tests of an architecture prototype 14

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An Architecture-Centric Process RUP defines two artifacts related to architecture: 1) The software architecture description (SAD),  which describes the architectural views relevant to the project 2) The architectural prototype,  which serves to validate the architecture and serves as the baseline for the rest of the development 16

An Architecture-Centric Process These two key artifacts are the roots of three others:  Design guidelines  Product structure  The development environment is based on the implementation view.  Team structure  is based on the structure of the implementation view. 17