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
Implementation