基于Dexter的协同超媒体系统设计

论述了基于Ｄｅｘｔｅｒ超文本标准模型的协同超媒体系统的通用体系结构设计中的问题。该结构包括开发与Ｄｅｘｔｅｒ兼容的超媒体系统的通用框架。其中的编辑进程、客户进程和ＯＯＤＢ服务器进程分别对应于Ｄｅｘｔｅｒ模型的各个层。ＯＯＤＢ提供了灵活的锁定和通告机制，这些机制使得ＯＯＤＢ更为通用且可独立于基于Ｄｅｘｔｅｒ的进程和数据模型而有所变化和扩展。文章最后给出了一些协同系统使用的典型例子。

Design of A Dexter-Based Cooperative Hypermedias Systems

Issues for the design of a general architecture for cooperative hypermedia systems based onthe Dexter Hypertext Reference Model have been discussed. The architecture includes a generic framework for developing bexter-Compatible hypermedia systems.In the frame-work,the Editor process,Client process and OODB server process be designed correspond to the layers proposed by the Dextermodel seperately.The OODB provides support for flexible locking and event notification mechanism.Developing such support within the OODB makes it general and independent of changes and extensionsto the Dexter-based process and data models.At last,some examples of abstract use of scenarios aregiven.