UML Architecture and Views

Object Oriented Design and Analysis
UML Views

Software Architecture
• Visualizing, specifying, constructing, and documenting a software-
intensive system demands
– system be viewed from a number of perspectives
• Different stakeholders, end users, analysts, developers, system
integrators, testers, technical writers, and project managers
– each bring different agendas to a project
– each looks at the system in different ways at different times over the
project's life
• The most important artifact that can be used to manage these
different viewpoints and so control development of a system
throughout its life cycle
• Concerned with structure, behavior, usage, functionality,
performance, resilience, reuse, comprehensibility, economic and
technology constraints and trade-offs, and aesthetic concern

Contd..
• the architecture of a software-intensive system can best be
described by five interlocking views
• each view is a projection into the organization and structure of
the system, focused on a particular aspect of that system

 A view showing the functionality of the system
as perceived by the external actors
 It exposes the requirements of the system
 With UML,
 The static aspects of this view are captured in use
case diagrams
 The dynamic aspects of this view are captured in
interaction diagrams, statechart diagrams, and
activity diagrams.
Use-Case
View

 A view showing how the functionality is designed inside the
system, in terms of the static structure and dynamic behaviour.
 It captures the vocabulary of the problem space and solution
space.
 With UML,
 The static aspects of this view are captured in class and object
diagrams
 The dynamic aspects of this view are captured in interaction
diagrams, statechart diagrams, and activity diagrams.
Design View

 A view showing the organization of the core components and
files
 primarily addresses the configuration management of the
system's releases
 With UML,
 The static aspects of this view are captured in component
diagrams
 The dynamic aspects of this view are captured in
interaction diagrams, statechart diagrams, and activity
diagrams.
Implementation
View

• A view showing the concurrency of the system
• encompasses the threads and processes that form the
system's concurrency and synchronization mechanisms
• primarily addresses the performance, scalability, and
throughput of the system
• With UML, the static and dynamic aspects of this view
are captured in same way as design view, but with a
focus on the active classes that represent these threads
and processes
Process View

• A view showing the deployment of the system in
terms of the physical architecture
• encompasses the nodes that form the system's
hardware topology on which the system executes
• primarily addresses the distribution, delivery, and
installation of the parts that make up the physical
system
Deployment
View

UML Architecture and Views

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