Web service decomposition: edge computing architecture for cache-friendly e-commerce applications

For e-commerce Web service applications, cache should be applicable especially to product information services. However, practical e-commerce use cases have limited cacheability: (1) a message, may contain management components, which reduce reusability of cached messages. (2) content typically consists of composite objects, which makes it harder to maintain cache effectively. To enhance cacheability of such Web services, we propose service decomposition through edge computing, which consists of two types of decomposition: (1) management service decomposition, and (2) content decomposition. A Web service is decomposed into management services and a bare service. Management services are a chain of intermediary services executed on an edge server. The cache service, one of those services, decomposes Web service content to multiple objects in order to maintain cache effectively. The paper introduces our cache model and specification and discusses ongoing research issues on high performance cache management.