Software engineering tutorial 1 let us understand what software engineering stands for. Describe how design patterns aid in achieving software reuse. It is very good to be used as an introduction and starting point to arcane theories and abstract mathematics. This course presents a systematic software reuse and reengineering as a strategy for increasing productivity and improving quality for the software industry.
Software reuse article about software reuse by the free. Written by a leading software reuse practitioner, measuring software reuse brings together all of the latest 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. Under the current economic constraints achieving high quality software under severe cost constraints is fundamental for the success of software companies, and reuse is a very good way of achieving it. Software metrics massachusetts institute of technology. Click download or read online button to get practical software reuse book now. In depth look at dsqi and software package metrics. However, this assembly line mentality is foreign to most software developers. Deriving metrics for the assessing the reusability level of software components is a challenging task. To describe the processes involved in software development with reuse and software development for reuse. Organizations implementing systematic software reuse programs must be able to measure their progress and identify the most effective reuse strategies. Additionaldevelopmentcost 5 relativecostofreuse2 1. 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.
Our primary example of domain analysis, which is the analysis of software into potentially reusable artifacts, often at a higher level than simply source code modules, is the assessment of. Download tutorial software reuse ebook pdf or read online. To explain the advantages and disadvantages of reusing software components. In this regard, academia has presented a number of techniques, methods, metrics and models for assessing the value of reuse and for maintaining the reusable software. Download pdf tutorial software reuse free online new. Software evolution the process of developing a software product using software engineering principles and methods is referred to as software evolution.
This site is like a library, use search box in the widget to get ebook that you want. The term is made of two words, software and engineering. The vast majority of reuse models attempt to provide some measure of the success of a reuse program in economic terms using development costs as the basis. The other area which is vital for software reuse is the maintenance. They provided a classification structure to help users select metrics, noting the need for organizations to identify the best reuse strategies and obtain data on the progress made. Explicit representation of commonality and variability in requirements similarity metrics for requirements and design artefacts reuse driven from business process level. Maintenance of reusable software has direct impact on the cost of the software. This paper reports on empirical research based on two software products. Principles, practices, and economic models jeffrey s. A comparative study on software reuse metrics and economic models from a traceability perspective conference paper pdf available september 2005 with 165. A brief overview of software reuse and metrics in software. Software metrics help project managers to gain an insight into the efficiency of the software process, project, and product. Software process models a software process model is an abstract representation of a process. Readers will also find checklists, practical techniques for software reuse library management, case studies, and the only coverage to date on reuse in.
Introduction software reuse, the use of existing software artifacts or knowledge to create new software, is a key method for significantly. Practical software reuse shows developers how to take advantage of existing. Three approaches where the presenter has been involved. Software reuse books and articles earth science data. Methods, models, costs emphasizes the cost efficient development of highquality software systems in changing technology environments. A comparative study on software reuse metrics and economic models from a traceability perspective conference paper pdf available september 2005 with 165 reads how we measure reads. Software reuse and reusability based on requirements, product. In an attempt to understand why, researchers have renewed their interest in software reuse and in the obstacles to implementing it. Software metrics is a standard of measure that contains many activities which involve some degree of measurement. It approaches software measurement using a three level model. Software metrics are valuable for many reasons, including measuring software performance, planning work items, measuring productivity, and many other uses.
To discuss the characteristics of reusable software components and to provide an example of a generic reusable component. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Practical software reuse shows developers how to take advantage of existing codes to build commercial software faster and cheaper, covering reuse operations, competitive benchmarking, transitioning to the reuse process, utilizing offtheshelf software, and more. A workflow for learning objects lifecycle and reuse. Software process models the waterfall model key properties of the waterfall model the result of each phase is a set of artifacts that is approved. Pdf a comparative study on software reuse metrics and. Introduction software reuse, the use of existing software artifacts or knowledge to create new software, is a key method for.
As organizations implement systematic software reuse programs to improve productivity and quality, they must be able to measure their progress and. Product metrics describe the characteristics of the product such as size, complexity, design features, performance, and quality level. It explains in depth the fundamentals, economics, and metrics of software reuse. Significant competitive advantage can be realized by reducing the time to. A reason put forward for this is the dependence of. A pragmatic analysis model for software reuse springerlink.
Software reuse and reusability metrics and models, acm computing survey, 282, 415435. Artifacts andor assets include a variety of reusable components, such as requirements, models, and implementation codes. According to the gqm organisational goals are understood to shape. Current metrics for functional reusability of software, however, have very little explanatory power. Along with the increase in software utility, capability, cost, and size there has been a corresponding growth in methods, models, tools, metrics and standards, which support software engineering. Software reusability metrics filetype pdf this article we survey metrics and models of software reuse and reusability, and. Citeseerx software reuse and reusability metrics and models. Abstract a fundamental task when employing software reuse is evaluating its. The methods, metrics, and guidelines to successful reuse across the software lifecycle. The following phase starts after the previous phase has. Software engineering is the establishment and use of sound engineering principles in order to obtain economically software that is reliable and work efficiently on real machines. Comparative surveys of some of these are available in lim 1996 and bandinelli et al. In this article we survey metrics and models of software reuse and reusability, and provide a classification structure that will help users select them.
He suggested models based on cost benefits, assessing the maturity, the degree of reuse, the failure modes, and reuse library metrics 22. Sorry, we are unable to provide the full text but you may find it at the following locations. Metricsandmodels william frakes virginiatech and carol terry. An introduction to software engineering and software process models is also provided. An in depth look at research that has been done on software metrics. Software reuse is probably the most elusive promise of object oriented programming. This paper surveys the different approaches to software reuse found in the research literature. Pdf analysis of the effects of software reuse on customer. Where these reports focus on the level of reuse and its benefits, reusability metrics seek ways to identify the software that will bring those. Metricsandmodels william frakes virginiatech and carol terry incodecorporation. A performance measure for software reuse projects, decision. Index termssoftware reuse, reuse survey, reuse metrics.
This is possible by collecting quality and productivity data and then analyzing and comparing these data with past averages in order to know whether quality improvements have occurred. The research goal is to ascertain the impact of the adoption of a reuse policy on customer satisfaction. Amount of reuse metrics, failure modes models, reusability assessment. Although reuse and reengineering are simple in concept, successful software reuse and reengineering implementation are difficult in practice. Victor bassili defines a topdown, goal oriented framework for software metrics. At the conceptual level, goals are set prior to metrics collection. We can accurately measure some property of software or process. Use and synthesize internet research in software reuse strategies to define a plan for managing software reuse within an organization. Current reuse techniques focus on the reuse of software artifacts on the basis of desired. The tutorial examines major works and how they quantify reuse by such means as. A cost model for software reuse linkedin slideshare.
Software reuse seminar report and ppt for cse students. A performance measure for software reuse projects a performance measure for software reuse projects rothenberger, marcus a dooley, kevin j. From this perspective, the previous sections on economically oriented metrics and software reuse impacts. The bottom line is good news for designers of complex systems. The results show that when a systematic reuse policy is implemented, such as the adoption of a domain specific library. Several software reuse models have been presented in the literature. Index termssoftware reuse, reuse survey, reuse metrics, reuse cost. Reuse metrics and economic models a study of the formulaic presentation of metrics listed in barnard 1998, poulin 1997, and. Capers jones, from the forewordmetrics and models in software quality engineering, second edition, is the definitive book on this essential topic of software development. Under the current economic constraints achieving high quality software under severe cost constraints is fundamental for the success of software. Software reuse metrics, reusability metrics, and economic. A metric for functional reusability of services springerlink.
Poulin with the techniques in this book, you will have the tools you need to design afar more effective reuse program, prove its bottomline profitability, and promote software reuse within your organization. In contrast to software life cycle models, software process models often represent a networked sequence of activities, objects, transformations, and events that embody strategies for accomplishing software evolution. Practical software reuse download ebook pdf, epub, tuebl, mobi. The rac book has a broad range of short introductions to various software reliability disciplines such as software reliability models, the contrast of software issues to hardware, and various software engineering models and metrics. This is the single best book on software quality engineering and metrics that ive encountered. Software engineering features models, methods, tools. A metric is a quantitative indicator of an attribute of a thing. In case of errors previous process stages have to be repeated. As organizations implement systematic software reuse programs to improve productivity and quality, they must be able to measure their progress and identify the. Cost estimation model for reuse based software products. Many metrics exist intuitively without mathematical models. Metrics and models in software quality engineering. Metrics and models with various reuse readiness levels can be used to measure reuse and reusability. In software engineering, many reuse metrics and models are metrics used to measure code reuse and reusability.
Software structure oriented metrics the whole point of software reuse is achieving the same or better results at the same or smaller cost when compared to a nonreuse oriented software development approach. Chapter 10 of the swebok discusses modeling principles and types, and the methods and tools that are used to develop, analyze, implement, and verify. A program is an executable code, which serves some computational purpose. Reuse metrics, economic models, organizational issues, and case studies. Practical software reuse download ebook pdf, epub, tuebl. 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. 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 reusebased software factory. Software reuse metrics for component qualification in. Comprehensive in scope with extensive industry examples, it shows how to measure software quality and use. Use appropriate software reuse metrics based on analysis objectives. Paid intern, coop, or any other course work cannot be applied toward the work experience requirement. Proper measurement of software metrics is essential to developing models for the software development process.
Pdf as organizations implement systematic software reuse programs to improve productivity and quality, they must be able to measure their progress and. Decision support systems 12 1994 5777 57 northholland software reuse. Such models can be used to develop more precise and formalized descriptions of software life cycle activities. Tomated software metrics analyzers are illustrated in the context. Reuse metrics and economic models having established a metricsbased definition of software reuse, the tutorial surveys the major reuse metric and economic models. You must have eight years of onthejob experience in one or more of the areas of the certified software quality engineer body. Reuse models and metrics can be categorized into six types. No way to measure property directly or final product does not yet exist for predicting, need a model of relationship of predicted variable with other measurable variables. Principles, practices, and economic models by jeffrey s. Software reuse has, however, failed to become a standard software engineering practice.
Poulin isbn 02016349 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. Metricsbased software reuse technologies amazon s3. A software metric is a measure of software characteristics which are measurable or countable. This book is an updated edition of the previous mcgrawhill edition, which was an essential guide to successful reuse across the entire software life cycle. A comparison between five models of software engineering. It presents a description of a process from some particular perspective as. Software reuse and reusability based on requirements. It presents cost models, certification of reusable components, and reusedriven engineering requirements. Introduction software metrics play a very important role in software. We also discuss metrics for software reuse measurement, including reuse.
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