====== BSc QoS Ontology ======
  * Services are matched with functional attributes, QoS is for ranking, matching.
  * QoS is non-functional attribute (Tannenbaum)
  * QoSoftware standard: ISO/IEC 9126-1, 13236 (software quality? SLA, stakeholders), W§C WSA (security, privacy)
  * OWL-Q ontology (no taxonomy), QoS-MO (SLA), onQoS (taxonomy, how QoS are gained, measured?), USDL (SAP, not ontology, what provider & requester wants, SLA).
  * QoS based serivce selection
    * range of property ZCL04), hard/soft constraints
    * Matching: snytactic, semantic, contraints satisfaction problem formulation.
  * Classification 
    * extracted from ISO, add core QoS
    * function for constraints mapping to values showing suiltability of service
  * Matcher architecture 
    * Collector, profiler --> merger (request fro collector, profiler) --> matching
  * Implementation
    * OWL-S,