Utilising push and pull mechanism in wireless e-health environment

The emerging of wireless computing motivates radical changes of how information is derived. Our paper concerns with developing push and pull based application in wireless environment. We use a simplified e-health (hospital) context to demonstrate some effective uses of pull-based and push-based mechanisms. The pull mechanism involves information retrieval from a database, and update information in the database. The push mechanism is classified into three scenarios, (i) aperiodic push, (ii) periodic push - global recipients and (iii) periodic push - selective recipients.