In SOSE, the service description is a service contract that advertises the following information: (i) service capabilities - stating the conceptual purpose and expected results of the service; (ii) interface - describing the service signatures of a set of operations that are available to the service requester for invocation; (iii) behavior - describing the expected behavior of a service during its execution; and (iv) quality - describing important functional and nonfunctional service quality attributes [12].