We present a toolkit and architecture for supporting networked shared (multi-user) hypermedia applications.The toolkit supports a rich set of media types: text, graphics, pictures, live and pre-recorded sound, and live and pre-recorded video.Hypermedia links can be anchored to any media type and refer to nodes which contain media items.Nodes provide for abstractions such as pages, cards and general information networks.Media information can be accessed and changed by several users.The toolkit is realised as a class library on a distributed object oriented language based on C. The concurrent and distributed features of the underlying architecture provide for multi-users.Issues of sharing, version management and access control are addressed by considering database extensions to the object oriented architecture.Support for networking of continuous media streams is provided by extensions to the underlying runtime system.The toolkit has been used to develop and support conference and groupware applications.

Abstract We describe a novel methodology for translating some PARLOG programs to occam2. Our methodology directs the translation based on a process level description generated from the PARLOG program. The translation of several example PARLOG programs is included. These examples feature: dynamic creation of processes; the one‐to‐many communication capabilities of PARLOG; and use of unbounded, asynchronous communication. The examples are then used to consider the translation of a previously developed programming application from the field of Artificial Intelligence, namely a PARLOGchart parser. We see two main interests in such a methodology: firstly, as a means of obtaining high‐performance execution of PARLOG programs–PARLOG programs translated to occam2 can be executed on the high‐performance Transputer device; secondly, PARLOG may have a use as a declarative specification language for the development of occam2 programs.