Erp systems are expensive to purchase, configure, and implement. Systematic reuse has always been a major goal in software engineering since it promises large gains in productivity, quality, and timetomarket reduction. Construction of database management systems based on. There are many tools that aid you in license compliance for software, many using databases and fuzzy heuristics. 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. The reuse landscape covers the range of possible reuse techniques. In such companies, people are fully aware of the steps between coding and testing so they are able to carry out the process effectively. Reuse a software reuse course abstract software reuse is the use of existing software artifacts and knowledge to construct new software. Thus, the reuse economics model is useful not only as a means to demonstrate benefits, but as a tool to aid the financial analyst, manager, or software engineer. While there is no magic solution to the problem of achieving the goals of software reuse, the report discusses various aspects, problems, issues, and economic. Software reuse the use of existing software or software knowledge to build new software in the last 20 years, several reuse techniques have been proposed libraries, objects, components, and so on open source initiatives have created a large amount of source code available. Leveraging software reuse with knowledge management in software development 711 system and improve the support in various aspects that knowbench provides towards managing software development. Single repository of data for all aspects of a business process combined into one software package.
Even when a complete software application cannot be reused individual components, data formats, highlevel designs, algorithms or. Promises and challenges the basic premise of software reuse is support for design methodologies for which the main activity. Quality concerns, therefore, should also be the focus for software reuse. Software reuse is viewed as a means of achievingor at least approximatingthe ideal capabilities. In various aspects, the data stored in the cache line 312 at a time of the eviction may not be identical to the data stored to the cache line 312 at a time of the insertion as the data may be operated on by the processor during the reuse tracking period. 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. Software specifications, designs, tests cases, data, prototypes, plans, documentation, frameworks, and templates are all candidates for reuse. Decision support systems 12 1994 5777 57 northholland software reuse. Software reuse is a state of the art book concerning all aspects of software reuse. Leveraging software reuse with knowledge management in software development 711 system and improve the support in various aspects that knowbench. Effective reuse of software products is reportedly increasing productivity, saving time, and reducing cost of software development. For each of these aspects, a customized approach how to construct the corresponding subsystem has been developed, again relying on software reuse wherever possible. Kim and stohr 26 confirmed this by arguing that software reuse can only succeed if also nontechnical issues are considered. Software reuse is the reapplication of knowledge encapsulated in software code in order to reduce the effort of developing and maintaining a new software system.
Software reuse has many technical and nontechnical aspects, for example, adhoc reuse, institutionalized reuse, blackbox reuse, whitebox reuse, source code. This report presents a managment overview of the various aspects, problems and benefits of software reuse. Several other divisions are involved with various aspects of the reuse process, setting up libraries, establishing reuse goals such as deposition ratios, or reuse. A reusecompliant project makes the jobs of legal experts and compliance officers much easier. A brief overview of software reuse and metrics in software. Jan 26, 2016 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 also sometimes referred as code reuse is the process of using existing software for the creation of new software. Constant code reuse will result in the long run in a bloated and disorganized applications with hard to chase bugs programming hell. Ian sommerville 2004 software engineering, 7th edition. Software reuse software asset management solutions. A generic application and development model is proposed for unifying various types of. With software reuse being a critical aspect of any development process, it follows that reuse management will be an important aspect of software process management.
Edwards reports on the results of a survey of reuse experts, which also indicates that additional work is required with respect to the nontechnical reuse issues. Software reuse is simply the act of using existing software resources and. Vijay narayananoffers 10 practival tips on succeeding with systematic reuse of software components, based on his experience with multiple projects. The quality evaluation technique defined all aspects by founding an attribute model. Many reuse design principles were developed at the wisr workshops. Software reuse is the process of creating software systems from existing software rather than building software systems from scratch. Software reuse in design and development of aspects request pdf. A short description of the equally ranked aspects contained in this reuse diamond. Software engineering has been more focused on original development but it is now recognised that to achieve better software. Reusebased software engineering system reuse complete systems, which may include several application programs may be reused. A generic application and development model is proposed for unifying various types of software reuse. In computer science and software engineering, reusability is the use of existing assets in some.
Kids aims at the development of a dbmsconstruction approach by defining specificationbased approaches strongly relying on software reuse. 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. Software reuse has, however, failed to become a standard software engineering practice. Software reuse appears in many different forms from adhoc reuse to systematic reuse, and from whitebox reuse to blackbox reuse. Formalization of these processes ensures that participants understand their responsibilities and the relationship between the different aspects of software reuse.
Pdf software reusability has become much interesting because of. Pdf a software reuse approach and its effect on software. Apr 20, 2011 software reuse also sometimes referred as code reuse is the process of using existing software for the creation of new software. Error handlingregarding one aspect of application architecture, it is often said that error handling represents nearly half of all application code. Software engineering with reusable components winse.
Market conditions policies, which changes over the time, such as taxation and. Nonfunctional properties of a software system are also crucial. Metrics and models with various reuse readiness levels can be used to measure reuse and reusability. A metric is a quantitative indicator or benchmark of an attribute, which is a feature or property of an entity. Reuse aware cache line insertion and victim selection in. Pdf leveraging software reuse with knowledge management in. Software reuse strategies 2243 words research paper. From library to factory hybrid domain specific kits uml 1.
Reusability brings several aspects to software development that do not need to be considered when reusability is not required. Effects of reuse on quality productivity and economics metrics collected on two case studies at hewlettpackard. Students spend hundreds of hours outside of class time documenting and building software components. Compare various kinds of software reuse based on their benefits and shortcomings. Software reuse and metrics are key components in the field of software engineering. A definition of software reuse is the process of creating software systems from. Systematic software reuse is a promising means to reduce development cycle time and cost, improve software quality, and leverage existing effort by constructing and applying multiuse assets like architectures, patterns, components, and frameworks. This presentation will discuss various aspects of software asset packaging and how they can affect the reusability of the assets. 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. Reinvention rather than reuse has been the norm in software development. This paper describes the kids 1 approach to database management system dbms construction. This reuse guidance applies only when all stakeholders agree that the software component is reusable. The reuse landscape although reuse is often simply thought of as the reuse of system components, there are many different approaches to reuse that may be used. A management overview of software reuse tsapps at nist.
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. Identify reasons why organizations may or may not choose to. In the context of reuse, software reuse is in the development phase and has not achieved its full potential. In various aspects, the reuse counter field 316 may be configured to use any amount of. A wellpackaged asset has advantages in being more reusable and thus more likely to provide benefits through its reuse. 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. Business practices have to be based around erp system. Software reuse even though software reuse has been practiced in one form or another over many years, it is still an emerging discipline. This report presents a perspective on software reuse in the context of ideal software development capabilities. This simple yet powerful vision was introduced in 1968 ed. Software development with reuse developing software given a base of reusable components. Chapter 18 slide 4 software reuse in most engineering disciplines, systems are designed by composing existing components that have been used in other systems. It stands for all the modifications and updations done after the delivery of software product.
Software reuse is the process of creating software systems from existing. While these aspects have been considered because of their relevance for any dbms, the construction method is open for further aspects. Different techniques are presented which enable software reuse and the author demonstrates why objectoriented methods are better for reuse than other approaches. Jan 02, 2015 reuse based software engineering system reuse complete systems, which may include several application programs may be reused. Art of software reuse by aravamudhan narayanan vijay is licensed under a creative commons attributionnoncommercial 3.
In the first part of the book we give a comprehensive overview of the subject, describing benefits and obstacles to software reuse as well as various aspects like reuse techniques and reuse products. Reuse is possible at a range of levels from simple functions to complete application systems. Current reuse techniques focus on the reuse of software artifacts on the basis of desired functionality. Setting your sights having considered the various aforementioned aspects of your reuse effort, the question remains. Pdf leveraging software reuse with knowledge management. Component reuse components of an application from subsystems to single objects. Software maintenance is widely accepted part of sdlc now a days. Reuse is the principal reason why languages such as fortran are still used ian sommerville 1995 software engineering, 5th edition. Whats a reasonable and realistic goal for a groundfloor reuse effort.
Software reuse objectives building software from reusable. Software reuse has many technical and nontechnical aspects, for example, ad hoc reuse, institutionalized reuse, blackbox reuse, whitebox reuse, source code. Software reuse is viewed as a means of achievingor at least approximatingthe idea capabilities. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Software reuse software reuse is the use of existing software or software knowledge to build new software for an individual or an organization. Effective reuse of software may involve substantial. Like many other promising techniques in the history of software, however, systematic reuse of. To ensure the financial success of reuse, software developers need to monitor the success of their reuse methodology using metrics isoda, 1992.
A generic application and development model is proposed for unifying various. Fifth international conference on software reuse 1998 classified the problem of reuse according to various aspects, and presented it schematically in a socalled. Software reuse seminar report and ppt for cse students. Literature survey is performed on benefits, major research contribution and issueschallenges of software reuse and componentbased development. Many reusable assets are currently available in various online catalogs and repositories, usually broken down by disciplines such as programming language. 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.
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. While it is currently popular to posit maturity models for various aspects of software. Create a framework for integrating software reuse into a software development organizations. Application reuse an application may be reused either by incorporating it without change into other or by developing application families. Historically, software reuse focused on repackaging and reapplying of code modules, data structures or entire applications in the new software projects prietodiaz 1994. Creating a bill of materials can be achieved with just one simple command. The reboot approach to software reuse sciencedirect. I normally set fifteen percent as a goal, reports lockheed martin systems analyst dr. Characteristics of software reuse strategies misrc. Some factors influencing software reuse are presented through this study. Jun 18, 2009 vijay narayananoffers 10 practival tips on succeeding with systematic reuse of software components, based on his experience with multiple projects. Implementing or updating software systems using all or part of an existing software component. Software reuse is the process of creating software systems from existing software rather than building them from scratch. We propose an architecture model that supports reuse of architectures, but is also.
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. Q7, a language for the qualitybased aspect oriented reuse. Apply key software reuse metrics to the software development lifecycle. A reuse compliant project makes the jobs of legal experts and compliance officers much easier. Previous research pro jects to provide support for reuse have often suf fered from the following weaknesses. When developers reuse software in different ways, creating nonstandard obligations for software upkeep. The mp section produces largapplication software for manufacturing resource planning. The various approaches to cost estimation are also contrasted, and related combinations of. Jeffrey poulin, author of measuring software reuse.
There are number of reasons, why modifications are required, some of them are briefly mentioned below. Another study was performed by 4 using qualitative and quantitative data from six open source. Why software reuse has failed and how to make it work for you. Reuse in software engineering freie universitat berlin. The research methodology for this work is based on a study of relevant research and qualitative analysis of software reuse cost estimation methodologies to highlight the cost factors on which these models are based. Software reuse has long been misconstrued as source code reuse, whereas the term software reuse refers to the reuse of any artifact or asset or product associated with software development, be it. The reuse of existing software assets such as code, architecture, libraries, and modules in current software and systems development projects can provide many benefits, including reduced costs, in time and effort, and increased reliability. Request pdf software reuse in design and development of aspects there is a need to study various approaches in the reuse of objectoriented design patterns and aspect oriented design approach. Explain why software reuse is not a solved problem. Analyze the reasons why software reuse is not as simple as it may seem at the outset. 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.
Software reuse can cut software development time and costs. Reuse does not replace other tools, it is a longawaited addition. Systematic software reuse is still the most promising strategy for increasing productivity and improving quality in the software industry. All of these aspects of reuse can be viewed in terms of their effects on quality, cost productivity, and development schedule. Create new software by reusing pieces of existing software.
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