Traditional, large-scale component repositories have failed for a variety of reasons. One of these reasons is that they have focused on the identification and selection of individual components, while system development often depends on the selection of compatible component ensembles. In this paper, we discuss an alternative approach to traditional component repositories that integrates knowled...

Component-based software engineering (CBSE) is becoming popular due to the benefits of software reuse and the availability of many alternatives of reusable components. By the reuse of existing software components that have already been tested, software engineers may reduce errors and shorten the time to market of the system under development. However, software engineers still have a problem in ...

Component-Based Software Engineering (CBSE) provides for developers the ability to easily reuse and assemble software entities to build complex software. It is based on the composition of prefabricated software entities called components. In this context, the selection step is very important. It consists of searching and selecting appropriate software components from a set of candidate componen...

Automated component-level evaluation of information retrieval is discussed. The advantages of such an approach are considered, as well as the requirements for implementing it. Acceptance of such systems by researchers is discussed.

Topic variance has a greater effect on performances than system variance but it cannot be controlled by system developers who can only try to cope with it. On the other hand, system variance is important on its own, since it is what system developers may affect directly by changing system components and it determines the differences among systems. In this paper, we face the problem of studying ...