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HI-TECH INSTITUTE OF
ENGINEERING AND TECHNOLOGY
PRESENTATION ON
SOFTWARE REUSE
B.TECH-3rd Year
DEPARTMENT OF IT
INTRODUCTION
• Software reuse is the process of implementing
or updating software systems using existing
software componen...
WHAT IS SOFTWARE ?
• Anything that can be stored electronically is
software.
• Example : Microsoft word etc.
• It is gener...
SOFTWARE REUSE
• Software reuse is the use of existing software or
software knowledge to build new software for an
individ...
PURPOSE OF REUSE
• CHEAPER PRODUCTS : It includes shorter
development time ,easier maintenance .
• BETTER QUALITY PRODUCTS...
BENEFITS OF REUSE
• It is cheaper.
• It produces less buggy code.
• It saves your time since you don’t have to
continuousl...
TYPES OF REUSE
• Concerning motivation and driving factors ,
reuse can be :
• Opportunistic - While getting ready to begin...
TYPES OF SOFTWARE REUSE
• Application System Reuse : It is concerned
with reusing an entire application inside another.
• ...
REUSE PLANNING FACTORS
• The development schedule for the software.
• The expected software lifetime.
• The background , s...
BARRIERS TO MAKING SOFTWARE
AVAILABLE FOR REUSE
• Increased maintenance cost.
• Lack of tool support.
• Lack of knowledge.
BARRIERS TO MAKING SOFTWARE
AVAILABLE FOR REUSE
APPROACHES THAT SUPPORTS REUSE
• Architectural patterns
• Design patterns
• Component-based development
•  Application fra...
ARCHITECTURAL PATTERNS
• An architectural pattern is a widely recognized
and reused solution to a
recurring design problem...
DESIGN PATTERNS
• In software engineering ,a design pattern is a general
reusable solution to a commonly occurring problem...
TOOLS USED IN REUSE
• Component management tools such as
repositories for architectures, designs,
documentation and code m...
ISSUES WITH REUSABLE COMPONENTS
• Higher cost of developing reusable
components.
• Performance issues : Generic components...
CONCLUSION
• A good software reuse process facilitates the increase
of productivity, quality and reliability and decreases...
THANK YOU
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Software reuse ppt.

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Software reuse is the process of implementing or updating software systems using existing software components.

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Software reuse ppt.

  1. 1. HI-TECH INSTITUTE OF ENGINEERING AND TECHNOLOGY PRESENTATION ON SOFTWARE REUSE B.TECH-3rd Year DEPARTMENT OF IT
  2. 2. INTRODUCTION • Software reuse is the process of implementing or updating software systems using existing software components. • To achieve better software quality more quickly at lower costs, software engineers are beginning to adopt systematic reuse as a design process.
  3. 3. WHAT IS SOFTWARE ? • Anything that can be stored electronically is software. • Example : Microsoft word etc. • It is generally developed by software firms for their clients under formal business contracts. • It generally requires some modification from time to time to accommodate changes taking place in the organization and the environment. • Ethical issues (like protecting privacy) are also taken into consideration in designing software.
  4. 4. SOFTWARE REUSE • Software reuse is the use of existing software or software knowledge to build new software for an individual or an organization. • Software reuse is also called as “Code Reuse”. • Systematic software reuse is still the most promising strategy for increasing productivity and improving quality in the software industry. • Example of software reuse is software library .
  5. 5. PURPOSE OF REUSE • CHEAPER PRODUCTS : It includes shorter development time ,easier maintenance . • BETTER QUALITY PRODUCTS : Code that was written for reuse should has better specifications and should be thoroughly tested.
  6. 6. BENEFITS OF REUSE • It is cheaper. • It produces less buggy code. • It saves your time since you don’t have to continuously reinvent the wheel. • It also helps the developers. • Higher quality products . • Less development time.
  7. 7. TYPES OF REUSE • Concerning motivation and driving factors , reuse can be : • Opportunistic - While getting ready to begin a project, the team realizes that there are existing components that they can reused. • Planned - A team strategically designs components so that they'll be reusable in future projects.
  8. 8. TYPES OF SOFTWARE REUSE • Application System Reuse : It is concerned with reusing an entire application inside another. • For example : MS-Office • Component Reuse : It is concerned with components of one application reused in another application.
  9. 9. REUSE PLANNING FACTORS • The development schedule for the software. • The expected software lifetime. • The background , skills and experience of development team. • The execution platform of the software.
  10. 10. BARRIERS TO MAKING SOFTWARE AVAILABLE FOR REUSE • Increased maintenance cost. • Lack of tool support. • Lack of knowledge.
  11. 11. BARRIERS TO MAKING SOFTWARE AVAILABLE FOR REUSE
  12. 12. APPROACHES THAT SUPPORTS REUSE • Architectural patterns • Design patterns • Component-based development •  Application frameworks • Legacy system wrapping • Service-oriented systems • ERP Systems.
  13. 13. ARCHITECTURAL PATTERNS • An architectural pattern is a widely recognized and reused solution to a recurring design problem in the field of software architecture . • The architectural patterns addresses various issues in software engineering such as computer hardware performance limitations, high availability and minimization of a business risks.
  14. 14. DESIGN PATTERNS • In software engineering ,a design pattern is a general reusable solution to a commonly occurring problem within a given context in software design . • A design pattern is a way of reusing abstract knowledge about a problem and its solution . • There are many types of design patterns such as : • Algorithm strategy patterns • Computational design patterns • Execution patterns
  15. 15. TOOLS USED IN REUSE • Component management tools such as repositories for architectures, designs, documentation and code must be developed and maintained . • Domain analysis tools and procedures for the development and maintenance of a domain architecture .
  16. 16. ISSUES WITH REUSABLE COMPONENTS • Higher cost of developing reusable components. • Performance issues : Generic components may be less space-efficient and may have longer execution times than their specific equivalents.
  17. 17. CONCLUSION • A good software reuse process facilitates the increase of productivity, quality and reliability and decreases the costs and implementation time. • By far the most important part of the reuse process is the people. • If the people in the organization do not understand the concepts behind reuse and do not see the benefits, reuse won't happen. • Reuse processes and procedures must be incorporated into the existing software development process.
  18. 18. THANK YOU

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