The operational quality of service characteristics offered by the provider must exceed those in the service specification, since the mediation can typically only degrade such characteristics.
提供者提供的操作（服务质量）特征必须超过服务规范中的操作特征，因为中介通常只能降低这些特征。
2
These include both the syntactic and the operational (quality of service) characteristics in a service specification.
非语义特征包括服务规范中的句法和操作（服务质量）特征。
3
The next section treats the business process as a specification of business requirements and shows how to identify capabilities and services needed fulfill the business operational requirements.