CLF/Mekano: a framework for building virtual-enterprise applications

Abstract

CLF/Mekano is a distributed object infrastructure oriented towards the high-level coordination of coarse grain components. Unlike other infrastructures of the same class, such as CORBA or DCOM, coordination in CLF/Mekano is built-in at the lowest level, namely at the inter-component communication protocol level, and not as a side service (such as the event, transaction or negotiation services of Corba). Although the CLF protocol is "lightweight" (it relies on very few concepts and only 8 communication "verbs"), it makes the design and implementation of components more complex, but also more valuable if it can be reused. The Mekano library has been developed in order to deal with this complexity, targeting reusability. It provides ready-to-use generic classes of customizable components, as well as useful component parts which can be reassembled according to application specific needs. Of course, further layers of domain-specific libraries (so called business object libraries), can then be developed on top of Mekano, to provide ready-to-use components dedicated to specific business needs (in the line of Enterprise Java Beans).