A generic application and development model is proposed for unifying various types of. Table 2 shows clearly that black box reuse makes software development easier in terms of hours spent. Software reuse,types,benefits of reuse,reusable components. Components can be swapped in and out like the interchangeable parts of a machine. A reusable resource can be any information in physical or electronic form which a developer may need in the process of creating software 32. 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 increases the software productivity and decreases the time required for the development of a software.
Application system reuse an application system product is a software system that can be adapted for different customers without changing the source code of the system. A reusable component may be code, but the bigger benefits of reuse come from a broader and higherlevel view of what can be reused. Software reuse types of software reuse opportunistic reuse benefits of reuse requirements for design with reuse cots integration problems reusable components. Software reuse is a term used for developing the software by using the existing software components. Design reuse is the process of building new software applications and tools by reusing previously developed designs. Software specifications, designs, tests cases, data, prototypes, plans, documentation, frameworks, and templates are all candidates for reuse.
A free powerpoint ppt presentation displayed as a flash slide show on id. There are various definitions and use cases which must be taken into consideration when implementing a solution to address requirements reuse. The concept of reuse is a familiar notion within the software development realm, but less common when considered in the field of requirements management. Software components are parts of a system or application. Reusebased software technology is a process of designing software for the reuse purpose, which can great reduce the time and expenses of developing and can enhance the flexibility. Like many other promising techniques in the history of software, however, systematic reuse of. Why software reuse has failed and how to make it work for you.
Reuse of software is one of the software engineering strategies where the development of a software product is carried out reusing the existing software. Many common operations, such as converting information among different wellknown formats, accessing external storage, interfacing with external programs, or manipulating information numbers, words, names, locations, dates, etc. For example, in a hospital patient record system, separate. A significant barrier to the reuse of software is the rigid interface presented by a subroutine. Software reuse and componentbased software engineering. Reusable resource types reusable software resources can be classified by entity types, application area types, and abstraction level types as follows. Explain why the fundamental software engineering principles of process, dependability, requirements management, and reuse are relevant to all types of software system. New features and functionalities may be added by incorporating minor changes. Component reuse components of an application from subsystems to single objects. The goal of software reuse is to reduce the cost of software production by replacing creation with recycling. When developers reuse software in different ways, creating. Used of software reverse engineering software reverse engineering is used in software design, reverse engineering enables the developer or programmer to add new features to the existing software with or without knowing the source code.
All in one software systems for business processes such as accounting, hr, payroll, ordering, manufacturing expensive yearly license fee along with the need for consulting help for initial configuration and testing must be implemented in steps the most common form of cots reuse. Component creation component indexing and storing component search component understanding compo. Software reuse article about software reuse by the free. It is usually said as reuse based software engineering. Code reuse is the use of existing software to deliver functionality. A largescale empirical study on software reuse in mobile apps.
You can structure data types in a nested way by referencing data types from a complex data type. Decision support systems 12 1994 5777 57 northholland software reuse. There are four major traits of software quality that impact reuse. Approaches to software reuse learn software engineering. Components are a means of breaking the complexity of software into manageable parts.
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. Next, the two types of reuse are correlated to the development process indicators revealing some interesting correlations. Here are three reasons software reuse is difficult. 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. Reusebased software engineering system reuse complete systems, which may include several application programs may be reused. Explore software reuse with free download of seminar report and ppt in pdf and doc format.
Systematic software reuse is still the most promising strategy for increasing productivity and improving quality in the software industry. The actual arguments in a subroutine call must exactly match the formal arguments in the subroutines definition. Most of the engineering disciplines s upport reuse. Krueger school of computer science, garnegie mellon university, pittsburgh, pennsylvania 152 software reuse is the process ofcreating software systems from existing software rather than building software systems from scratch. The reuse landscape design patterns architecture patterns frameworks software product lines cots configurable applications encapsulation of legacy systems serviceoriented architecture aspectoriented software development modeldriven development generative programming componentbased development api and libraries featureoriented programming. Using commercial or noncommercial products that exist as opposed to reinventing them. What are advantages and disadvantages of software reuse. Library api application programming interface api libraries or api implement services used by several kinds of programs it is a common way of software reuse api makes available common functions to convert data from common formats e. You can ensure secure code in a number of ways, including using a cwe list. A step forward to componentbased software cost estimation in objectoriented environment further topics explored include software process models, software reuse and metrics, software testing techniques, and web engineering and web. Software engineering software maintenance geeksforgeeks. Implementing or updating software systems using all or part of an existing software component. Application reuse an application may be reused either by incorporating it without change into other or by developing application families.
Software reuse has, however, failed to become a standard software engineering practice. Real reuse for software requirements sharing between projects. And its difficult to provide adequate guidance and feedback on the reuse of code. 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. Also explore the seminar topics paper on software reuse with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year computer science engineering or cse students for the year 2015 2016.
Software quality plays a major role in how easily software can be reused. Vijay narayananoffers 10 practival tips on succeeding with systematic reuse of software components, based on his experience with multiple projects. Design reuse involves the use of designed modules, such as logic and data, to build a new and improved product. Its a challenge to effectively communicate the details and requirements for code reuse. As the number of projects and developers increases, it becomes harder to reuse software. Mcclure 5 identifies several properties a softw a re component must ha ve to be reusable.
Common problems make the reuse difficult identify units of reusable knowledge store the reusable knowledge into a knowledge base. Reuse is one of the simplest and oldest concepts in programming and one that is often underutilized. There are two types of software reuse,s one is opportunistic reuse and the other is planned reuse. Application system products are adapted by using built in configuration mechanisms that allow the functionality of the system to be tailored to specific customer needs. More work has been done on componentbased software reuse. 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. Each component hides the complexity of its implementation behind an interface. Basic issues in any reuse program the following are some of the basic issues that must be clearly understood for starting any reuse program.
Software reuse seminar report and ppt for cse students. By using the technique of software reuse, a company can improve software system interoperability and needs less people for software. The total percentage of reuse is correlated to the development indicators. Application systems have generic features and so can be used reused in different environments. This report presents a perspective on software reuse in the context of ideal software development capabilities. Software reuse and software reuse oriented software. However, you must ensure that the referencing and the referenced data type are shipped together otherwise the data type definition is not complete. In an attempt to understand why, researchers have renewed their interest in software reuse and in the obstacles to implementing it. What are advantages and disadvantages of wastewater treatment plants.
Some of the components that can be reuse are as follows. Software reuse can cut software development time and costs. Software reuse software asset management solutions. Status and future, ieee transactions on software engineering, 317. Inheritance allows programmers to create classes that are built upon existing classes, to specify a new implementation while maintaining the same behaviors realizing an interface, to reuse code and to independently extend original software via public classes and interfaces. Class libraries reusable components application frameworks patterns service oriented architecture soa. 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. Software reuse is viewed as a means of achievingor at least approximatingthe ideal capabilities. This paper surveys the different approaches to software reuse.
Introduction to software reuse software reuse is the process of creating software from antecedent and extant components. When implemented purposefully and correctly, reuse can save time and money as well as create. A very common example of code reuse is the technique of using a software library. Software reuse 5,6 has been analyzed since 1968, when douglas mcilroy proposed to mass produce software with the help of reusable components. Software reuse is defined as the use of previously developed software artifacts such as design, code, documentation, etc. 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.
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