Aspects of software reuse

Software stability can be defined as a software systems resilience to changes in the original requirements specification. The book explores the basic foundations upon which reuse processes and approaches can be established and discusses state of. Software engineering has been more focused on original development but it is now recognised that to achieve better software. This reuse guidance applies only when all stakeholders agree that the software component is reusable. Another aspect is that if you reinvent the wheel, you have complete control over. Common problems make the reuse difficult identify units of reusable knowledge store the reusable knowledge into a knowledge base. This is a question that many have attempted to answer by taking up object technology, with varying degrees of success. Software reuse download ebook pdf, epub, tuebl, mobi.

May 22, 2017 code reuse is the use of existing software to deliver functionality. These keywords were added by machine and not by the authors. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Design reuse involves the use of designed modules, such as logic and data, to build a new and improved product. The goal of software reuse is to reduce the cost of software production by replacing creation with recycling. Chapter 18 slide 2 objectives to explain the benefits of software reuse and some reuse problems to discuss several different ways to implement software reuse to explain how reusable concepts can be represented as patterns or embedded in program generators. However, previous research in software reuse mainly focused on the functional aspect of a system, tended to ignore or treat the quality aspects trivially.

In computer science and software engineering, reusability is the use of existing assets in some. Aspectual reuse is the concept of software reuse of aspect oriented software artifacts. Ppt software reuse powerpoint presentation free to. To implement software reuse one must start with reuse from the feasibility study till maintenance in the sdlc. There are two types of software reuse,s one is opportunistic reuse and the other is planned reuse.

First, while agile development pleads against development for reuse, agile teams increasingly rely on ecosystems of reusable open source software developed by quintessential reuse organizationsopen source. Results from skd combined with results from previous surveys on software developers attitude toward software reuse by ntnu c4. Software reuse has many technical and nontechnical aspects, for example, adhoc reuse, institutionalized reuse, blackbox reuse, whitebox reuse, source code. Jan 02, 2015 the reuse landscape chapter 15 software reuse 1117112014 12. A software reuse approach and its effect on software. Oct 07, 2012 design reuse is the process of building new software applications and tools by reusing previously developed designs. The reused components are found in the businessspecific and common services packages, and are shared between two gprs solutions for different networks. Software engineers and managers need to change their view of software reuse from that of simply accessing parts in a software library, to that of systematically developing and using welldesignedparts following a careful process within a reuse based software factory. Move personnel more easily from project to project. A pattern is a common approach to solving a problem that is proven to.

Deriving measures of software reuse in object oriented. It was presented at the 1st international dialysis course in senegal taking place december 57th, 2015 for which the theme was renal replacement therapy during the nurse sessions. Students spend hundreds of hours outside of class time documenting and building software components. Ian sommerville 2004 software engineering, 7th edition. This report presents a managment overview of thevarious aspects, problems and benefits of software. The papers are organized in topical sections on software variability.

A definition of software reuse is the process of creating software systems from predefined software components. Software reuse was proposed as early as 1968 in order to help alleviate the software crisis characterized by an explosion in computers and software complexity through the production of massproduced software components 119. This provides a competitive advantage for the company and helps to produce. Preface theinstituteforcomputersciencesandtechnologyicstofthe nationalbureauofstandardsnbs, hasaresponsibilityunder publiclaw89306brooksactandpubliclaw100235. Different techniques are presented which enable software reuse and the author demonstrates why objectoriented methods are better for reuse than other approaches. Reuse is a concept in which we classify and retrieve the software components artifacts as per the requirement. Use appropriate software reuse metrics based on analysis objectives. Pdf software reuse and portability of parallel programs. Use and synthesize internet research in software reuse strategies to define a plan for managing software reuse within an organization. Reusing code can dependently on the case reduce the challenge and satisfaction factor for the programmer, and also waste an opportunity to develop new skills. Software reuse can cut software development time and costs. Survey of the software development process and reuse aspects at skd c3. Software reuse is a state of the art book concerning all aspects of software reuse. Architecture, process and organization for business success, the authors present a brand new, technically innovative, coherent and systematic model for implementing reuse.

Software reuse software asset management solutions. The advantages of reused software components by nancy bazilchuk and parastoo mohagheghi software reuse in a product family approach is commonly thought to lead to fewer product problems, greater productivity and easier maintenance. Software reuse describes the practice of reusing existing software artefacts for developing a new product or maintaining an old product. However, they do not suffice to make software reuse happen. Application reuse an application may be reused either by incorporating it without change into other or by developing application families. In 2000, scott ambler wrote an excellent article on the organizational aspects of software reuse. Design reuse is the process of building new software applications and tools by reusing previously developed designs. Approaches that support software reuse approach description application frameworks collections of abstract and concrete classes are adapted and extended to create application systems. Decision support systems 12 1994 5777 57 northholland software reuse. Posted on january, 2009 by nicole radziwill 2 comments. Software reuse and software portability are two research areas where further progress is essential. This site is like a library, use search box in the widget to get ebook that you want. This handbook offers a managerial approach to software reuse its advantages and disadvantages, costjustification, current reuse efforts, and strategies to implement and deploy reuse in a corporate environment. Component reuse components of an application from subsystems to single objects.

From then on, i sometimes doubt whether this was a good decision. Characteristics of software reuse strategies misrc. Software reuse is the use of existing software or software knowledge to construct new software 118. Software specifications, designs, tests cases, data, prototypes, plans, documentation, frameworks, and templates are all candidates for reuse. The field has been the subject of research for several years and different aspects of software reuse such as costs, artefacts, the level of reuse, stakeholders, and reuse processes have been investigated. The active reuse of software is one of the most promising avenues for a dramatic increase in software productivity. Code is expensive and time consuming to develop and code reuse is considered a fundamental productivity strategy for information technology intensive businesses. Software reuse in design and development of aspects request pdf. Describe how design patterns aid in achieving software reuse. This paper provides a framework for the derivation of measures of software reuse and introduces several definitions, attributes, and abstractions of potentially measurable reuse properties. Design reuse makes it faster and cheaper to design and build a new product, since the reused components will not only be already. Aspectoriented software development has constantly gained in popularity, and is the subject of an annual conference, the international conference on aspectoriented software development, held for the first time in 2002 in enschede, the netherlands. Software reuse and software reuse oriented software. For example, one team can operate a market data service for a bank as opposed to having 50 systems and applications.

Constant code reuse will result in the long run in a bloated and disorganized applications with hard to chase bugs programming hell. Architecture, process and organization for business success, the authors present a brand new, technically in. If these issues are not considered, software may appear to be reusable from design point of view, but will not be reused in practice. Technical aspects are important prerequisites for successful reuse. Summary reuse and reusability how to improve reusability buildforreuse versus buildwithreuse example of how to reuse through components web serviceoriented software reuse example of how to reuse through aspects qualitybased. This paper provides a generic list of reuse design principles for component based software development based on a preliminary analysis of the literature of software reuse and reuse design over the. The main challenge today is therefore the development of techniques and tools that improve the programmers situation.

They have combined their experience in the fields of object oriented software engineering, business engineering and systematic software reuse to create the reusedriven software engineering business reuse. Software reuse is the use of existing software or software knowledge to construct. New features and functionalities may be added by incorporating minor changes. Software reuse strategies 2243 words research paper. Citeseerx 7 aspectual reuse software reuse and aspect. Reusability brings several aspects to software development that do not need to be considered when reusability is not required. A good process of software reuse leads to enhance the reliability, productivity, quality and the reduction of time and cost.

Services reuse both the code and the operational aspects of a technology. Episode 17 service governance key to service reuse 3min 57s service governance covering design, implementation, testing, and provisioning. Software reuse has many technical and nontechnical aspects, for example, adhoc reuse, institutionalized reuse, blackbox reuse, whitebox reuse, source code reuse, design reuse. A free powerpoint ppt presentation displayed as a flash slide show on id. The former means to create reusable software assets, while the latter means to reuse software assets in the construction of a new. Software reuse increases the software productivity and decreases the time required for. This article reports on a survey of 128 developers to explore their experiences and perceptions about using other peoples code. Some of the components that can be reuse are as follows. Are there success factors that will make a difference to. Integrating three important aspects of software reuse technical, management, and organizationalthis indispensable reference shows how these fundamental aspects are used in the development lifecycle of componentbased software engineering and product line engineering.

Software reusability more specifically refers to design features of a software element or collection of software elements that enhance its suitability for reuse. Reuse is the principal reason why languages such as fortran are still used ian sommerville 1995 software engineering, 5th edition. Each episode is 36 minutes long with info you can use right away. We invite submissions on new and innovative research results and industrial experience reports dealing with all aspects of software reuse within the context of the modern software development landscape.

Objectives to explain the benefits of software reuse and some reuse problems to discuss several different ways to implement software reuse to explain how reusable. Systematic and largescale reuse of reusable assets at multiple development levels is improving the efficiency of software development activities significantly in terms of cost and time. Apr 20, 2011 software engineering in the past was more focused on the original development and now it has recognized the importance of the software reuse method which is helpful in achieving better software, at low costs and more quickly. Jun 18, 2009 vijay narayananoffers 10 practival tips on succeeding with systematic reuse of software components, based on his experience with multiple projects. Most software will change over time, and the anticipation of change drives many aspects of software construction. Software reuse is the process of creating software systems from existing. Software reuse has many technical and nontechnical aspects, for example, ad hoc reuse, institutionalized reuse, blackbox reuse, whitebox reuse, source code. The survey was structured around a novel and simple 4a model, which. Recent advances in software engineering have revolutionized all the aspects of software development. Reusing programs and other artifacts has been shown to be an effective strategy for significant reduction of development costs. In the next version of our software, we threw the third party ipc library out and replaced it by one we wrote ourselves. In information technology, design reuse is the inclusion of previously designed components blocks of logic or data in software and hardware.

Kim and stohr 26 confirmed this by arguing that software reuse can only succeed if also nontechnical issues are considered. He talked specifically about patterns and antipatterns. Companies ought to have a disciplined path in which they can incorporate software reuse modules and the new products. Continuous improvement should also be a critical aspect of this reuse strategy. The proceedings that you are holding as you read this report on the current state theart in software reuse.

For example, while agile development pleads against development for reuse, agile teams increasingly rely on ecosystems of reusable open source software developed by quintessential reuse organizationsopen source developer communities. Software reusethis brings us to the most challenging aspect of application. In computer science and software engineering, reusability is the use of existing assets in some form within the software product development process. Reuse could save time for future students each projects software and documentation should be categorized and documented extensively each time a new project is started, students should search the library of software components for reuse. There is a need to study various approaches in the reuse of objectoriented design patterns and aspect oriented design approach in enterprise systems for architecture and its implementation. Because reuse implies the creation of a separately maintained version of the assets, it is preferred over leverage.

This process is experimental and the keywords may be updated as the learning algorithm improves. How can i incorporate reuse into my complex software development process in order to gain a competitive edge. Recent advances in software engineering have significantly transformed all aspects of software developmentfor better of for worse. Reusability brings several aspects to software development that do not need to be considered when reusability. Systematic software reuse, reuse maturit,y software development, software. This presentation was given by christopher atwater sr. Software development is a process of writing and maintaining the source code, but in a broader sense, it includes all that is involved between the conception of the desired. Click download or read online button to get software reuse book now. Systematic reuse requires the interplay of people, process, and technology decisions executed within the context of real world constraints. Software reuse is a term used for developing the software by using the existing software components. The term is more frequently used in hardware development. Q7, a language for the qualitybased aspect oriented reuse.

Many nontechnical aspects have to be considered in order to improve systematic software reuse and to make it the normal way of software creation. Software developers and organizational leaders should get feedback about the outcomes of software reuse so as to improve in the future. From library to factory hybrid domain specific kits uml 1. Software development is the process of conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applications, frameworks, or other software components. Easa will conduct a full public consultation on the proposed changes prior to the publication of issue 2 of this certification memorandum on software aspects of certification. The stateoftheart of programming parallel computers is far from being successful. A software unit would be perfectly portable if it could be ported at zero cost.

Nontechnical aspects of software reuse springerlink. Current reuse techniques focuses on the reuse of software artifact which grounded on anticipated functionality whereas, the nonfunctional quality aspect are also important. Reuse based software engineering system reuse complete systems, which may include several application programs may be reused. Software engineering with reusable components winse. These are but a few examples about how recent advances in software engineering have had importantand sometimes contradictoryeffects on reuse.

The analysis and measurement of current levels of software reuse are necessary to monitor improvements. Wrapping reusable components in a service that can be deployed and operated separately from the rest of your systems and applications. Instead, we characterize software by its degree of portability, which is a function of the porting and redevelopment costs, with respect to a specific target environment. An overview of ericssons gprs software architecture that has been designed to support software reuse. Chapter 18 slide 4 software reuse in most engineering disciplines, systems are designed by composing existing components that have been used in other systems. The rsc plan for software aspects of certification psac and the first applicants systemlevel psac must document that stakeholders agree on the proposed means. Software development with reuse developing software given a base of reusable components. Software reuse objectives building software from reusable. Raghav rao suny buffalo, amherst, ny 14260, usa reusability is a general principle that is instrumental in avoiding duplication and capturing commonality in inherently similar tasks. The rsc plan for software aspects of certification psac and the first applicants systemlevel psac must document that stakeholders agree on the proposed means of showing the rsc compliance with this ac. Managing software reuse is an invaluable reference and includes the worlds most extensive collection of surveys on reuse adoption strategies eleven strategies, success factors five studies, economic models seventeen models, reuse maturity models seven models, assessments nine assessments, organizational structures seven structures, metrics, processes ten processes, domain.