Selective Querying for Adapting Web Service Compositions Using the Value of Changed Information

Componentization of Business Process Layer in the SOA Reference Architecture

“…While many services are published onto the Internet on the daily basis, business process composers are facing a significant issue of how to find an appropriate service among a set of services providing the same functionalities with different features. This problem is usually known as automatic services composition [6].…”

Selective Querying for Adapting Hierarchical Web Service Compositions Using Aggregate Volatility

“…In this paper, we focus on a change in T , though our approach is generalizable to fluctuations in other model parameters as well. VOC [9] employs a myopic approach to information revision, in which we query a single provider at a time for new information.…”

“…., π * 0 , the start state, and horizon as input. We only need to make a small change to the SOA introduced in [9] to accomodate hierarchical WSCs.…”

“…Harney and Doshi [9] proposed a method for selective querying using the value of changed information (VOC). In particular, the approach computes the trade-off between the cost of querying for up-to-date information and the value of expected change in the WSC that the revised information will bring.…”

“…We briefly review the definition and formulation of the value of changed information (VOC) for participating WSs, and refer the reader to Harney and Doshi [9] for more details.…”