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Rapid application development model (RAD). Gill N. S., Tomar P, “X Model: A New Component-Based Model”, MR International Journal of Engineering and Technology, Vol. Traditional software estimation models are directed towards large monolithic software development projects. Component-based development is oriented on creating reusable software components thus it can be used in the context of different software development lifecycles and architectural styles. 4. Evolutionary development: Specification, development and validation are interleaved. formal 1. 5. By promoting the use of software components that commercial vendors or in-house developers build, the component-based software development approach promises large-scale software reuse. A component-based process model: The creation of software is characterized by change and instability and therefore any diagrammatic representation of the component-based process model should consider overlapping and iteration between its phases. 6. Component-based software engineering : The system is assembled from existing components. A component-based process model fosters the development of a project by identifying and reusing components that already exist. What are the primary advantages of the component-based process model for software engineering? Iterative model. It aims at reducing costs of building software through developing different components and integrating them to a well-defined software architecture. • It emerged from the failure of object-oriented development to support effective reuse. By applying component-based development in the context of 4+1 architectural style as suggested by Stevens and Pooley [120], the following UML diagrams are developed for each of the architecture view: Various tools and techniques are invented by researchers and practitioners to improve in delivering quality software systems with lower cost and shorter time to market. Incremental model. CrossRef v It leads to software re-used and re-usability provides a number of tangible benefits. One such practice is development of software using Component Based Software Development … The model divides the software development process into 4 phases – inception, elaboration, construction, and transition. Component-based software engineering (CBSE) can be defined as an approach to software development that relies on software reuse. A consensus may be drawn on the phases pertinent to a software life cycle. 1 & 2, 2008. The Rational Unified Process (RUP) The Rational Unified Process (RUP) is also a combination of linear and iterative frameworks. Component-based software engineering (CBSE), also called components-based development (CBD), is a branch of software engineering that emphasizes the separation of concerns with respect to the wide-ranging functionality available throughout a given software system.It is a reuse-based approach to defining, implementing and composing loosely coupled independent components into systems. Nasib Singh Gill and Pradeep Tomar, “Modified Development Process of Component-Based Software Engineering”, ACM SIGSOFT Software Engineering Notes, March 2010, Volume 35 Number 2. 7. • Component Based Software Engineering(CBSE) is a process that emphasis the design and construction of computer based system using reusable software “components”. Benefits of CBSD v It leads to significant reduction in project cost. 3. Research and development (R&D) activity or the introduction of a new service or a product. Contemporary software development practices require a new approach to software cost estimation. The field of software engineering and software Software development costs, time-to-market and quality product are the three most important factors affecting the software industry. There are many variants of these models e.g. 1, No. 8. v It leads to reduction in development cycle time. (Section 4.2.1) Component-based process models promote software reuse and reusability and can result in a reduction in development cycle times, a reduction in project costs, and an increase in productivity. Component-based software engineering offers an attractive alternative for building Web-based enterprise application systems. Formal Research and development ( R & D ) activity or the introduction of a new service or a.... A combination of linear and iterative frameworks integrating them to a well-defined software architecture on the phases to. The development of a project by identifying and reusing components that already exist support effective reuse components and integrating to... 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