Title
Architectural design and implementation of highly available and scalable medical system with IBM Websphere middleware
Abstract
Medical systems require the end-to-end high availability and scalability. There are many components in a medical system, and each individual component contributes to the overall system availability and scalability. We present the formulas to assess the overall system availability and capacity planning, and we architect approaches and technologies to make all components highly available in all tiers by clustering, workload management, and replication. We discuss how to unify all medical systems and design the uniform framework for different kinds of medical systems to hook up with this framework so that we can maintain a highly available and highly scalable system with ease. We use the n-tier distributed component based architecture and J2EE technologies as well as Web services to interact with .NET and others. We discuss how to program in the framework for high availability and scalability and how to upgrade application software without service interruption to achieve continuous availability. We show how to add or reduce hardware capacity in each tier and how to maintain hardware and software without service interruption as well as how to balance the capacity and availability among tiers.
Year
DOI
Venue
2004
10.1109/CBMS.2004.1311710
CBMS
Keywords
Field
DocType
medical information systems,high availability,scalable medical system,highly available,web services,ibm websphere middleware,hardware capacity,application software,end-to-end high availability,medical system,system scalability,replication,internet,service interruption,workload management,n-tier distributed component based architecture,middleware,continuous availability,uniform framework,j2ee technologies,overallsystem availability,capacity planning,system availability,architectural design,clustering,scalability,hardware,web service,service oriented architecture,availability,technology management,computer architecture,software maintenance
Middleware,Data mining,Computer science,Capacity planning,Component-based software engineering,Web service,Application software,High availability,Operating system,Service-oriented architecture,Scalability,Distributed computing
Conference
ISSN
ISBN
Citations 
1063-7125
0-7695-2104-5
1
PageRank 
References 
Authors
0.36
0
3
Name
Order
Citations
PageRank
Han Wang110.36
Hao Wang251.12
Jinmei Shen310.36