The bonus soa has over bounding on components is that of scalability and greater exposure to third parties. However, the measurement of software component quality is relatively less researched against conventional. An introduction to reliability centered maintenance rcm principles. However, maintaining\ud component based systems cbss introduces new issues. A risk of selecting a product with unknown quality properties. Generic software development and enhancement framework. Service oriented architecture and software components. Maintenanceoriented selection of software components abstract. Fleet management information systems selection and procurement james m. At the same time, the reliabilityoriented evolution method of software architecture based on contribution degree of component is applied to an atm system. This issue of handbook el304, maintenance selection system, is completely revised to provide current information on postal service policies and procedures for selecting maintenance craft employees. Componentbased software engineering is a new,\ud promising, and rapidly growing discipline in both\ud academia and industry. As an it guy, i have my opinions about how it terms are supposed to be used, but they rarely agree 100% with what i hear or see around me. The specification of the characteristics of the system components necessary to put the logical design into action.
Introduction cbse embodies the the buy, dont build philosophy. The software maintenance process comprises a set of software engineering activities that occur after the software has been delivered to the user. The natural consequence is the online system for anybody customers, people, partners, other businesses, not necessarily with any human computer interface of the old type. Maintenanceoriented selection of software components pasquale ardimento, alessandro bianchi, giuseppe visaggio dept of informatics university of bari via orabona 4, 70126 bari italy. The maintainers activities comprise four key characteristics. We must then modify the appropriate components of the application system without adversely affecting the rest of the system. Issue 3 contains updates to items from issue 2 agreed upon by the apwu and usps. Documentation is still a highly relevant artifact of software maintenance. This chapter identifies the quality characteristics and subcharacteristics most relevant for software components and organizes them in dimensions that are critical to their assessment. Logical systems design describes the functional requirements of a systems. The selection of proper enforcement of standards is the challenging task right from.
A software is a set of machine readable instructions to run hardware. The role of program structure in software maintenance. For example, users want the software to perform according to their requirements. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes.
Introduction to reliabilitycentered maintenance this is an excerpt of the first chapter of the book reliabilitycentred maintenance by john moubray. This method helps in dealing with the issue of separation of concerns. Comparative study of the factors that affect maintainability. Adaptive development and maintenance of usercentric software. Serviceoriented software engineering process n traditional software engineering process 1. Single object classes are too detailed and specific.
Because of the extensive uses of components, the component based software engineering cbse process is quite different from that of the traditional waterfall approach. The complete disappearance of a component could make the application. From this study we found certain areas of cbse integrationtesting, and storage of components which we consider necessary to be researched through. Sometimes, maintenance also involves adding new features and functionalities using latest technology to the existing software system. Quality function deployment is a powerful prioritization tool that combines several different types of matrices into one to form a houselike structure quality function deployment is a customerdriven process for planning products and services it starts with the voice of the customer, which becomes the basis for setting requirements.
Maintenanceoriented selection of software components core. However, one study indicated that ov er 80% of ma intenance effort is used for noncorrective actions. It emerged from the failure of objectoriented development to support effective reuse. Component based software engineering is a new,\ud promising, and rapidly growing discipline in both\ud academia and industry. These factors should be inbuild in any good software. National academies of sciences, engineering, and medicine. This perception is perpetuated by users submitting. Other examples of system documents which may require update, such as a software operations document eei10 and a users reference guide eem 1, were discussed in section 2. These engineering based factors of the relate to interior quality of the software like efficiency, documentation and structure. Componentbased software engineering cbse is an approach to software development that relies on software reuse. Software maintenance is classified into four types. For example, changing functionoriented programs into objectoriented programs. Presentation on component based software engineeringcbse.
Software engineering is, however, the study and an application of engineering to the design, development and maintenance of software. Regression testing, the selective retesting of a software or component to verify that the. This includes adaptations to changing require ments and corrections of. Following are some types of maintenance based on their characteristics. What are the characteristics of software engineering answers. Study of perfective maintainability for componentbased. Modifying a program after it has been put into use. In software engineering, software maintenance is the process of enhancing and. Once the software product is developed and put into use, major effort for maintenance. Implementation of components, selection of components and quality of components which constituted 14. Computeraided maintenance management systems selection based on a fuzzy ahp approach.
Pdf software component quality characteristics model for. Analyze the advantages, disadvantages, or both of various data storage technologies. Software components provide interfaces, which can be used to establish. Software characteristics are classified into six major components. Accommodate programs so that different hardware, software, system features, and. Material and parts selection standardization test and evaluation requirements for suppliers seriesparallel recommendations derating 36 standardization standardization. Characteristics of application software maintenance. Component based software engineering vs service oriented.
Software architecture descriptions are commonly organized into views, which are analogous to the different types of blueprints made in building architecture. These software components are loosely coupled, internally. Systems design a phase in the development of an is system that answers the question how will the information system do what it must do to obtain a solution to a problem. Componentbased software engineering is a new, promising, and rapidly growing discipline in both academia and industry. Software maintenance overview software maintenance is widely accepted part of. The fundamental objectives of a process are the same as that of software engineering after all, the process is the main. Maintenance and enhancement of application software consume a major portion of the total life cycle cost of a system. The process that deals with the technical and management issues of software development is called a software process.
Computer hardware is virtually useless without computer software. Objectoriented design you can design a key objects and classes of. Similarly, developers involved in designing, coding, and maintenance of the software evaluate the software by looking at its internal characteristics, before delivering it to the user. Finally, the last maintenance process, also an event which does not occur on a daily basis, is the retirement of a piece of software. Maintenanceoriented selection of software components conference paper pdf available in proceedings of the euromicro conference on software maintenance and reengineering, csmr 8. Software component quality characteristics model for. Software maintenance software maintenance is the process of changing a system after it has been delivered. Softwar e maintena nce in sof tware engineering is the modification of a s oftware product after delivery to correct faults, to improve performance o r other at tributes a common percep tion of mai ntenance is that it merely involves fixing defects. Introduction to reliability centered maintenance rcm part 1. Componentbased software engineering cbse is an approach to software development. Pdf maintenanceoriented selection of software components. Maintenance training programs online maintenance training. Identify the hardware components of a computer system and their functions e. Service oriented architecture and software components 19 systemsforcustomerswho could thenuse asystemdirectly,ratherthan using it indirectly through a clerk.
Identify the characteristics and uses of various types. Software engineering software maintenance geeksforgeeks. However, one study indicated that over 80% of maintenance effort is used for noncorrective actions. The 60% maintenance costs come from making enhancements, which is something that makes the systems provide additional value 11, 50. Analyzing the software quality metrics for object oriented technology. A software development project must have at least development activities and project management activities. What is quality function deployment qfd and why do we. Maintenance of the software should be easy for any kind of user.
You may order this book through this website by clicking here. Software is the programs that are needed to accomplish the input, processing, output, storage, and control activities of information systems. Each view addresses a set of system concerns, following the conventions of its viewpoint, where a viewpoint is a specification that describes the notations, modeling, and analysis techniques to use in a view that expresses the architecture. A software maintenance procedure consists of three steps. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes a common perception of maintenance is that it merely involves fixing defects. Our aim is to describe a landscape for research in software maintenance and. Designers need architectural understanding functional components and how they. On an average, the cost of software maintenance is more than 50% of all sdlc phases.
Components are more abstract than object classes and can be considered to be stand. The role of program structure in software maintenance jaana lindroos seminar on software maintenance. The survey will target professional software maintainers. Guidance on successful computer maintenance management system cmms selection and practices. It emphasizes on developing new software from prebuilt components. A study on estimating software maintenance found that the cost of maintenance is as high as 67% of the cost of entire software process cycle. Yet they are inevitable activities almost all software that is useful and successful stimulates usergenerated requests for change and improvements. However, maintaining\ud componentbased systems cbss introduces new issues. Cqcm component quality characteristics model for the development of reusable and quality components and to derive the cost reduction and quality improvement in the. Guidance rules and heuristics are used to select architectural options. The course provides a more indepth knowledge of how a pump is chosen for a system based on the. Very often in practice we use programs with poorly designed structures, poor coding, poor logic, and poor documentation often we employ programs created using the best design and techniques at their time, when program size and storage space were principal components.
Means selection of components and materials whose reliability characteristics are known, as well as their degradation under stress and aging. However, maintaining componentbased systems cbss introduces new issues. Besides the ones mentioned above a variety of other items need to be considered when selecting cmms software for an organization e. Computeraided maintenance management systems selection. Status of empirical research in component based software. Maintenance consumes 40% to 80% of software costs and is therefore probably the most important phase of life cycle of software 11, 36, 50. A reliabilityoriented evolution method of software. It will be used for the reliabilityoriented evolution in this paper. However, the area has been given little attention in the literature. Rough estimates of the total systems and programming resources consumed range as high as 7580 percent in each category. A quality guide is presented, which was elaborated through a field research carried out with developers of components and componentbased applications. Third, most of these approaches need manual weighting of the features.
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