RDBMS for service repository and composition

Abstract

Relational Database for its huge success in data management has been used here as a scalable repository for storing webservices in UDDI framework.The operator 'join' has been used to derive service composition by matching inputs of a service to outputs of another.Adopting three modes of composability for a desired service, the possibility of having different kinds of compositions is demonstrated in form of a Composition Search Tree.

Full Solution Indexing for Top-K Web Service Composition

“…However, loading lots of services information into RAM is expensive, and the search space is limited by the available physical memory. These shortcomings have motivated researchers to utilize relational database to solve service composition problem [17], [19], [38].…”

“…Attempts to resolve the service composition problems have resulted in the utilization of relational database [17], [18], [19]. They use "join" operators to connect matched services, these services are seen as new available services.…”

“…Redundant services may contain in the returned solution and increase user's cost (A service is redundant if all its output parameters used by other services can be provided by other services [18]). The system developed by [19] assumes all the inputs of a service can be provided by another service. However, in real world, normally a service only provides part inputs of another service.…”

“…end if 18: end for 19: end for 20: return mulP athSets(i) be added into pathM . We check from the first service layer of pahM (line 1), if there is overlap between the outputs of pathS and the inputs of current service layer i of pathM (line 3) , the algorithm stops and returns the index of current layer (line 8).…”

Service Repository for Cloud Service Consumer Life Cycle Management

“…service name, service version, provider and service descriptions) and a service discovery component that allows discovery of services. Lakshmi and Mohanty [9] describe the design of a scalable service repository implemented using a relational database supporting algebraic operators for service composition using Composition Search Trees. The database service includes five tables: Providers, Services, Parameters, Service Input and Service Output.…”