Architectural styles and pattern is a usefull...

1. Architectural styles and patterns
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DEEP KUMAR SHARMA
M.TECH (2ND SEM)
SOFTWARE ENGINEERING

2. Contents
Architecture
Software architecture
Architecture Style
The Definition of Architecture Styles
Architectural Patterns
The Definition of Architecture pattern
Difference between Pattern and Styles
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Architecture

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Software architecture considers two
levels of design:
 Data Design – action translates data objects defined as
part of the analysis model into data structures at the
software component level and when necessary, a database
architecture at the application level.
 Architectural design – representation of the structure
of software components, their properties and relations

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 Architecture is a high level description of a solution to a
problem
 architecture includes-
 Main Components
 Functionalities and properties of components
 Major Relations
 Components collaborating among the components
Introduction

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 An architectural style, sometimes called an architectural pattern
 It provides an abstract framework for a family of systems
 An architectural style improves partitioning and promotes
design reuse by providing solutions to frequently recurring
problems
Architectural Style

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 An Architectural Style defines a set of rules that describe:
- The way in which the components interact
Architectural Style

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 architecture styles and patterns as sets of principles
that shape an application
 some architectural styles describe deployment
patterns, some describe structure and design issues,
and others describe communication factors
Architectural Style

9. The Definition of Architecture Styles
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“An architectural style is a named collection of architectural
design decisions that are applicable in a given development
context, constrain architectural design decisions that are
specific to a particular system within that context, and elicit
beneficial qualities in each resulting system.”

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 An architectural pattern is a general, reusable solution to a
commonly occurring problem in software architecture within a
given context
 Architectural patterns are often documented as software design
pattern
Architectural Patterns

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 An architecture pattern is determined by-
 A set of element types(such as data repository or a component)
 A topological layout of the element indicating their
interrelationships
 A set of semantic constraints(e.g. filters in a pipe-and-filter style
)
 A set of interaction mechanisms that shows how the elements
coordinate through the allowed topology.
Architectural Patterns

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The Definition of Architecture pattern
"An architectural pattern is a named collection of
architectural design decisions that are applicable to a
recurring design problem, parameterized to account for
different software development contexts in which that
problem appears “

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Difference between Pattern and Styles
The main difference is that a pattern can be seen as a
solution to a problem, while a style is more general
and does not require a problem to solve for its
appearance.

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Thank You