On Dependability of Composite Web Services with Components Upgraded Online
Харченко, Peter T. Popov, Alexander B. Romanovsky · Dependable Systems and Networks · 2004
Ensuring dependability of composite Web services, dynamically composed of component Web services, is an open issue. One of the main difficulties here is due to the fact that component Web services can and will be upgraded online. The challenge is then to ensure that the overall dependability of the composite service is not undermined. The solutions we propose in this position paper make use of natural redundancy present in systems containing a new and an old release of the component.