Distributed Handler Architecture

Over the last couple of decades, distributed systems have been demonstrated an architectural evolvement based on models including client/server, multi-tier, distributed objects, messaging and peer-to-peer. One recent evolutionary step is Service Oriented Architecture (SOA), whose goal is to achieve loose-coupling among the interacting software applications for scalability and interoperability. The SOA model is engendered in Web services, which provide software platforms to build applications as services and to create seamless and loosely-coupled interactions. Web services utilize supportive functionalities such as security, reliability, monitoring, logging and so forth. These functionalities are typically provisioned as handlers, which incrementally add new capabilities to the services. Even though handlers are very important to the services, the way of utilization is very crucial to attain potential benefits. Every attempt to support a service with an additive functionality may increase the chance of having an overwhelmingly crowded chain. Moreover, a handler may become a bottleneck because of having a comparably higher processing time. We present Distributed Handler Architecture to provide an efficient, scalable and modular architecture to address these issues.