Component Based Effort Estimation During Software Development: Problematic View

Component-based software development (CBD) is an emerging discipline that promises to take software engineering into a new era. Building on the achievements of object-oriented software construction, CBD aims to deliver software engineering from a cottage industry into an industrial age for Information Technology, wherein software can be assembled from components, in the manner that hardware systems are currently constructed from kits of parts. Componentbased development (CBD) is a branch of software engineering that emphasizes the separation of concerns in respect of the wide-ranging functionality available throughout a given software system. This practice aims to bring about an equally wide-ranging degree of benefits in both the short-term and the longterm for the software itself and for organizations that sponsor such software. Software engineers regard components as part of the starting platform for service-orientation. Components play this role, for example, in Web services, and more recently, in service-oriented architectures (SOA), whereby a component is converted by the Web service into a service and subsequently inherits further characteristics beyond that of an ordinary component. Components can produce or consume events and can be used for event driven architectures (EDA).