Supporting synchronous and asynchronous communications in event-based communication framework for client-server applications

Refinement Principles Supporting the Transition from Asynchronous to Synchronous Communication

We present three reenement principles supporting the transition from system speciications based on (unbounded) asynchronous communication to system spec-iications based on (bounded) synchronous communication. We refer to these principles as partial, total and conditional reenement, respectively. We distinguish between two synchronization techniques, namely synchronization by handshake and synch...

Developing Groupware Applications Using Client/Server with Event-Pipe Method

Clarens Client and Server Applications

The Clarens web services platform, described in a companion article, [15] acts as a go-between for distributed clients on the wide area network to access services using the widely XML-RPC and SOAP data serialization standards on top of the lower-level HTTP protocol. Its usefulness must ultimately be measured by the usefulness of the services and clients themselves. This paper is divided into tw...

A framework for Java-based client server connectivity for XML

JDBC, Java Database Connectivity, is a well-known and mature technology for a Java based client to connect to a relational database on a server, execute SQL commands, and process results of queries that reside on the server. Likewise, there are a few technologies such as XQJ, IBM Cognos to support such connectivity to XML. But these technologies require the whole document to be stored in memory...

Client and Server Mobility for WEB Applications

As mobile devices and broadband networks are widely available, it is desirable to provide mobility for web services. A web service is mobile in the sense that, without interrupting the services, users are allowed to switch the browsing devices or the service providing servers could be changed as the users move. The mobility of users’ browsing devices and the change of service providing servers ...