Code reuse is the use of existing software to deliver functionality. 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. Reuse of software is one of the software engineering strategies where the development of a software product is carried out reusing the existing software. A reusable resource can be any information in physical or electronic form which a developer may need in the process of creating software 32. The potential impact of software reuse remains questionable because of technical, organizational, and legal issues that need to be addressed. Software reuse can cut software development time and costs.
The reuse people, an organization that started in san diego in 1993 and now has locations throughout the country, emphasizes a key difference between reusing and recycling. Reusing code can dependently on the case reduce the challenge and satisfaction factor for the programmer. It is the process of creating software systems from existing software rather than construction software systems from scrape. However, this is not the only advantage of software reuse and other advantages are mentioned within the following table. Levels of reuse in software development anders lybeckers.
Following an evolutionary reuse practice, a company has its disposal a rich asset of repository. The challenges faced by organizations trying to implement reuse are presented. In fact, basic, or ad hoc software reuse already exists within most organizations. What are the benefits and disadvantages of such systems as a design strategy.
Software reuse is a term used for developing the software by using the existing software components. Software reuse software asset management solutions. Quality, productivity and economic benefits of software. Software reuse and software reuse oriented software.
Bringing a system to market as early as possible is often more important than overall development costs. Like many other promising techniques in the history of software, however, systematic reuse of. Component reuse components of an application from subsystems to single objects. Code is expensive and time consuming to develop and code reuse is considered a fundamental productivity strategy for information technology intensive businesses. For example, if menus in a user interfaces are implemented using reusable components, all applications present the same menu. Software reuse article about software reuse by the free. Further is presented some findings on experienced benefits and problems with objectoriented software reuse in middle size. This invaluable source for prototypers could consist of a team of reuse engineers, consultants, and reuse library administrators. The elements of software that can be reused are software specifications, designs, tests cases, data, prototypes, plans, documentation, frameworks, and templates. Benefits of software reuse benefit explanation lower development costs development costs are proportional to the size of the software being developed. Increased quality and increased productivity are the two most reported benefits.
Promoting software reuse in a corporate setting cmu school of. Some of the components that can be reuse are as follows. Software specifications, designs, tests cases, data, prototypes, plans, documentation, frameworks, and templates are all candidates for 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 software, at low costs and more quickly. Software reuse,types,benefits of reuse,reusable components. Introduction to software reuse software reuse is the process of creating software from antecedent and extant components. To implement a more structured evolutionary reuse effort, companies need to. 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. May, 2018 there are many benefits in taking up software reuse selectbs, n. Software project managers are worried about the expensive software development. Reuse is using the previously builtin scripts and codes of software which can be used for developing of new applications from the earlier once.
Nov 11, 2017 it is usually said as reuse based software engineering. The costs and benefits of reusing software code dirkjan. The former is anything that prolongs the life of an item, while the latter involves reprocessing it into a new material. Software reuse is the process of implementing or updating software systems using existing software assets. Quality, productivity and economic benefits of software reuse. Jan 02, 2015 reuse based software engineering system reuse complete systems, which may include several application programs may be reused. Reuse is therefore sensible in both business and technology perspectives. Software reuse support centers a natural extension to the concept of reusable support systems, is that of a software reuse support center srsc. Objectoriented reuse on the benefits and problems 1. Reports of successful software reuse programs in industry have been published.
Levels of reuse in software development anders lybecker. Clearly, recycling, while honorable in its own right. Promote the development of wellfactored software a process that is already quite familiar to most software developers. Following an evolutionary reuse practice, a company has its disposal a rich asset of repository filled with reusable company content that is exclusively focused on its particular domain of operation. What are advantages and disadvantages of software reuse. Reducing and reusing basics the most effective way to reduce waste is to not create it in the first place. Benefits provided by software reuse are well known to software developers. They both have lines of code which are unique to their product, product a specific loc and product b specific loc, and they have a potential for sharing, the reuse potential. Software reuse is a process to create a software element or system which incorporates previously created software elements.
Measuring software reuse brings together the concepts, tools, and methods for software reuse metrics, presenting concrete quantitative techniques for accurately measuring the level of reuse in a software project and objectively evaluating its financial benefits. The key benefits of software reuse shorter software development time developers save themselves time when an application theyre working on requires a piece of code that already exists and is already accessible greater time and cost efficiency in goodpractice environments, existing code comes with existing documentation and existing. Depending on the scope of your project, you may have the opportunity for code reuse. These include increased software productivity, shorter development times, improved interoperability, recuded costs and usually higher output quality to name a few. Advantages of reuse grow as more corporate experience is gained from it, but so do the costs and the. This section needs additional citations for verification. Provide better access to their own internal software content. One of the most important benefits of software reuse is minimizing the overall software development costs. What are advantages and disadvantages of wastewater treatment plants. Instead of throwing out those plastic forks and spoons, wash them and use them again. 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. Reusebased software engineering system reuse complete systems, which may include several application programs may be reused. Developing new software systems is expensive, and maintaining them is even more expensive.
Why software reuse has failed and how to make it work for you. Software reuse types of software reuse opportunistic reuse benefits of reuse requirements for design with reuse cots integration problems reusable components. Through software reuse, software developers can produce high quality. Duplicating code or functionality makes it easy to reuse it. Benefits of software reuse essay computer programming. Cbd and spl are the two most used approaches to software reuse. There are many benefits of software reuse like increased dependability, reduced process risk, effective use of specialists, standards compliance and accelerated development. Benefits of reusing software code in the following picture you see two products, a and b. There are a range of approaches that can be taken when following a reuse pattern, these can usually be grouped into one of the following abstractions. Developing intelligent agents is a complex softwareengineering activity but the benefits of applying softwareengineering principles such as highlevel languages, maintenanceoriented development environments, and software reuse to intelligent agent development have not yet fully migrated to the agentdevelopment community. Pursuant to a congressional request, gao provided information on software reuse, focusing on.
However, there has been little effort to organize the evidence systematically and appraise it. Reduced process risk the cost of existing software is already known. 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. Software reuse books and articles earth science data. Approaches to software reuse learn software engineering. The objective of the present paper is to present some information on benefits and problems with objectoriented software reuse. First, lets suppose for the moment that you and i are going to build a garage door application for an android mobile device. Class libraries reusable components application frameworks patterns service. Making a new product requires a lot of materials and energy raw materials must be extracted from the earth, and the product must be fabricated then transported to wherever it will be sold. In the context of reuse, software reuse is in the development phase and has not achieved its full potential. Developing intelligent agents is a complex software engineering activity but the benefits of applying software engineering principles such as highlevel languages, maintenanceoriented development environments, and software reuse to intelligent agent development have not yet fully migrated to the agentdevelopment community. Reuse provides an excellent, environmentallypreferred alternative to other waste management methods, because it. Application reuse an application may be reused either by incorporating it without change into other or by developing application families.
Oct 08, 2012 benefits of reusing software code in the following picture you see two products, a and b. Regardless of the process or processes used to develop software within an organization, there are easy to. Reusing software can speed up system production because both development and validation time may be reduced. Software reuse is generally defined as the use of previously developed software resources from all phases of the software life cycle, in new applications by various users such as programmers and systems analysts 1, 521. This provides a competitive advantage for the company and helps to produce. Software reuse implementing or updating software systems using all or part of an existing software component saves time and energy by reducing redundant paperwork. Chapter 18 slide 7 reuse benefits 2 standards compliance some standards, such as user interface standards, can be implemented as a set of standard reusable components.
Reducing and reusing basics reduce, reuse, recycle us epa. It is usually said as reuse based software engineering. 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. It can reduce the cost and time factors which will enhance the end customer for easy navigation and implementation of new applications with existing resources. Many reuse programs have evolved from local solid waste reduction goals because reuse requires fewer resources, less energy, and less labor, compared to recycling, disposal, or the manufacture of new products from virgin materials. Constant code reuse will result in the long run in a bloated and disorganized applications with hard to chase bugs programming hell. A reusable component may be code, but the bigger benefits of reuse come from a broader and higherlevel view of what can be reused. Code reuse, also called software reuse, is the use of existing software, or software knowledge, to build new software, following the reusability principles. Section 4 discusses some of the benefits that are generally associated with reuse. May 22, 2017 code reuse is the use of existing software to deliver functionality.
In software engineering reuse has been claimed as an important source of saving costs 2. The key benefits of software reuse shorter software development time developers save themselves time when an application theyre working on requires a piece of code that already exists and is already accessible greater time and cost efficiency in goodpractice environments, existing code comes with existing documentation and existing qa and compatibility test results a seamless user experience you want to offer your customers an easy, recognizable, seamless experience across. Literature survey is performed on benefits, major research contribution and issueschallenges of software reuse and componentbased development. Here the present paper indicate significant benefits from reuse on productivity, quality, timeto market. Software should be reused at least 3 times to recoup the expense, otherwise the cost of building and maintaining the software will not be recovered by reduced overhead in other areas plan on continual training, mentoring, and handson experience. Explain reuse and its advantages and disadvantages. Please help improve this article by adding citations to reliable sources. Measuring the benefits of software reuse researchgate. Measuring software reuse brings together all of the latest concrete, tools, and methods for software reuse metrics, concrete quantitative techniques for accurately measuring the level of reuse in a software project, and the objective evaluation of resultant financial benefits. Ian sommerville 2004 software engineering, 7th edition. Presents a systematic mapping on reuse benefits in realworld settings. Software reuse also sometimes referred as code reuse is the process of using existing software for the creation of new software.
What are the advantages and disadvantages of code reusability. Jan 31, 2019 the key benefits of software reuse shorter software development time developers save themselves time when an application theyre working on requires a piece of code that already exists and is already accessible greater time and cost efficiency in goodpractice environments, existing code comes with existing documentation and existing. Oct 06, 2017 software reuse types of software reuse opportunistic reuse benefits of reuse requirements for design with reuse cots integration problems reusable components. A standardsbased guide by carma mcclure isbn 076950874x. Software reuse has long been on the radar of many companies because of its potential to deliver quantum leaps in production efficiencies.
A benefits estimation model for software reuse based program. Systematic software reuse is proposed to increase productivity and software quality and lead to economic benefits. Jul 10, 2019 one of the most important benefits of software reuse is minimizing the overall software development costs. Code reusability actually encompasses several ideas that are kind of difficult to explain. Items such as wood pallets and unrecycled paper products cause the harvesting of more trees. With assistance of erich gamma, i have identified four levels of reuse.
Feb 21, 2014 code reusability actually encompasses several ideas that are kind of difficult to explain. Smallscale software components that implement a single welldefined object or function may be reused. Three different approaches to software reuse and the benefits of the software reuse are analyzed. Reusing software means that fewer lines of code have to be written. By using the technique of software reuse, a company can improve software system interoperability. Software reuse increases the software productivity and decreases the time required for the development of a. Software reuse the idea that developers can create reusable components for use in a new application is quickly becoming the hot topic.
Through software reuse, software developers can produce high quality software in comparatively lesser time and lesser budget. What are advantages and disadvantages of software reuse answers. Move personnel more easily from project to project. Jun 01, 2010 developing new software systems is expensive, and maintaining them is even more expensive. Reduction in development and testing time, increased quality, ability to release new products and services quicker to the marketplace are all benefits of software reuse. Decision support systems 12 1994 5777 57 northholland software reuse. Apr 18, 2020 software reuse is a term used for developing the software by using the existing software components. Best results are obtained when systematically approaching software reuse. Reusing items reduces the number of those items that suppliers need to make. Software reuse increases the software productivity and decreases the time required for. Two advantages of custom written software are that the software is specific for the needs of the consumer, and the consumer owns the software after it is written for them. The systematic reuse of these components as building blocks to create. Apr 20, 2011 reuse has an enormous impact on productivity. The benefits of software reuse linkedin slideshare.
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