Requested Interface

: This paper introduces the Requested Interface pattern which describes ways to implement truly independent software components that can be plugged together as needed in order to make reuse more attractive than reimplementation. It encourages components to delegate subtasks to collaborating servers so that they can be adapted to a new context by simply exchanging those subtask servers. The delegating objects must specify minimal and abstract requested interfaces that describe the subtasks independently of existing server interfaces. An adaptation layer mediates between the requested interface of a client and the offered interface of a server implementing the subtask. Purpose Make reuse of services more attractive than reimplementation by providing independent components that can be plugged together according to the needs of the application to be built. Motivation Although highly desirable, software reuse is still much less customary than it could be. Programmers often choose to reim..