Dynamic Service Discovery and Invocation in OHP
David E. Millard, Siegfried Reich, Hugh Davis · 1999
The Open Hypermedia Protocol (OHP) was originally envisaged as a simple but comprehensive protocol to deal with hypermedia navigation. However it contained aspects of other functionality, most noticeably hypermedia collaboration and dynamic service invocation. As the protocol has evolved it has become apparent that to properly deal with these areas OHP would need to be much larger and more complex then was appropriate. This paper describes the ideas behind dynamic services and presents an optional extension to OHP that is domain independant. We believe that by splitting the functionality of OHP into a suite of packages or modules we may better divide and conquer the problems we have encountered. 1. Introduction The Open Hypermedia Systems Working Group (OHSWG, http://www.ohswg.org/) has promoted research towards interoperability amongst hypermedia systems and integration with the World-Wide Web. To this end it has been actively investigating the possibility of a generalised protocol f...