Modern healthcare requires massively distributed virtual electronic patient records. Recent component-based approaches are the best available solutions for the development of such systems. However, all of today's ...
详细信息
ISBN:
(纸本)3540221298
Modern healthcare requires massively distributed virtual electronic patient records. Recent component-based approaches are the best available solutions for the development of such systems. However, all of today's solutions have one very important problem: they do not support consistent and robust object-addressing for the dynamic case, although this is one of the most crucial features in massively distributed environments. The goal that has to be achieved is to replace physical addresses by stable and robust logical handles, managed by a distributed lookup service. Naive implementations suffer from very severe scalability problems that have to be overcome without violating robustness requirements. DOLSA (=distributed Object Lookup Service Algorithm) is designed to provide a lookup-based object addressing mechanism that is robust against any kind of object-, server- and network-dynamics. The algorithm is fully scalable in respect to the number of managed mappings, the number of lookup-requests, the number of distributed servers and the number (and frequency) of object movement operations.
暂无评论