The Rational Unified Process (RUP)
An Architecture-Centric Process
Yazd University, Electrical and Computer Engineering Department
Course Title: Advanced Software Engineering
By: Mohammad Ali Zare Chahooki
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
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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
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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)
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The 4+1 View Model of Architecture
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The 4+1 View Model of Architecture
1)
The
Logical View
 It is an abstraction of the design model and identifies:
 major design packages/subsystems, and
 classes
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The 4+1 View Model of Architecture
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The 4+1 View Model of Architecture
2)
The
Implementation View
 It addresses the issues of
 ease of development,
 management of software assets,
 reuse
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The 4+1 View Model of Architecture
3)
The
Process View
 the concurrency and synchronization aspects of the design
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Receive
Connection
[Server Shutdown]
[Client Connection]
Server
Shutdown
Get a Server
Connection
Send
Message
Wait for
Broadcast
Message
Wait for User
Message
Connection Closed
Return Server
Connection
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Broadcast
Message
Start GUI
exit
Get New
Client
Connection
Update Text
Display
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Wait for
Broadcast
Message
Wait for User
Message
Broadcast
Message
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.
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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
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the different views.
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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
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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.
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