The critical nature of information and data in some systems like health sector requires a system that gives optimal tolerance to fault without trading off or compromising system integrity, availability and security in order for the system to afford greater efficiency. The main thrust of this work is to examine health system application(s) in the light of fault tolerance and come up with application software of high tolerance to fault that can be deployed as an intranet in a tertiary health institution for sharing Patients' Case Notes among care givers. Besides extensive literature review on...