Making Web services tradable: A policy-based approach for specifying preferences on Web service properties Export

@article{Agarwal09, abstract = {In service-oriented architectures, applications are developed by incorporating services which are often provided by different organizations. Since a service might be offered under different configurations by various different organizations, sophisticated service selection and negotiation algorithms are required. Policies capture the conditions under which services are offered or requested and thereby constrain the negotiation space. However, current policy languages are ill-suited to realize beneficial trade-offs within a negotiation, since they support only Boolean decisions and cannot capture all relevant service information. Therefore, we present a novel policy language in this work that provides two main contributions: (i) we enable the specification of constraints on functional as well as non-functional properties of Web services. The functional properties include data objects and the behaviour, whereas the non-functional properties include QoS attributes. (ii) Given such constraints, we show how the concept of utility function policies can be used to define cardinal preferences over functional as well as non-functional properties. This is required to rank Web service offers, define their prices, and consequently to realize automated negotiations between service providers and requesters.}, author = {Agarwal, S. and Lamparter, S. and Studer, R.}, citeulike-article-id = {4097173}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.websem.2008.02.001}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S1570826808000218}, doi = {10.1016/j.websem.2008.02.001}, issn = {15708268}, journal = {Web Semantics: Science, Services and Agents on the World Wide Web}, keywords = {discovery, preferences, qos, selection, semantic}, month = {January}, number = {1}, pages = {11--20}, posted-at = {2009-02-25 10:01:52}, priority = {5}, title = {Making Web services tradable: A policy-based approach for specifying preferences on Web service properties}, url = {http://dx.doi.org/10.1016/j.websem.2008.02.001}, volume = {7}, year = {2009} }

TY - JOUR ID - Agarwal09 L3 - citeulike-article-id:4097173 N2 - In service-oriented architectures, applications are developed by incorporating services which are often provided by different organizations. Since a service might be offered under different configurations by various different organizations, sophisticated service selection and negotiation algorithms are required. Policies capture the conditions under which services are offered or requested and thereby constrain the negotiation space. However, current policy languages are ill-suited to realize beneficial trade-offs within a negotiation, since they support only Boolean decisions and cannot capture all relevant service information. Therefore, we present a novel policy language in this work that provides two main contributions: (i) we enable the specification of constraints on functional as well as non-functional properties of Web services. The functional properties include data objects and the behaviour, whereas the non-functional properties include QoS attributes. (ii) Given such constraints, we show how the concept of utility function policies can be used to define cardinal preferences over functional as well as non-functional properties. This is required to rank Web service offers, define their prices, and consequently to realize automated negotiations between service providers and requesters. IS - 1 JF - Web Semantics: Science, Services and Agents on the World Wide Web SN - 15708268 EP - 20 TI - Making Web services tradable: A policy-based approach for specifying preferences on Web service properties VL - 7 SP - 11 KW - discovery KW - preferences KW - qos KW - selection KW - semantic AU - Agarwal, S AU - Lamparter, S AU - Studer, R PY - 2009/01// UR - http://dx.doi.org/10.1016/j.websem.2008.02.001 ER -