In this paper we present SALMon, a tool assessing the satisfaction of service level agreement (SLA) clauses by service-oriented systems. SALMon itself is organized as a service-oriented system that offers two kind of services: 1) the Monitor service that measures the values in execution time of dynamic quality attributes (like response time or availability), and 2) the Analyzer service that det...

The lack of effective trust establishment mechanisms impedes the deployment of diverse trust models for web services. One issue is that collaborating organizations need mechanisms to bridge extant relationships among cooperating parties. We describe an indirect trust establishment mechanism to bridge and build new trust relationships from extant trust relationships with privacy protection. Anot...

How to find and select a suitable service for services users are a challenging task. In this paper, we proposed a method of concept categorization with the use of personal ontology to evaluate and select more suitable service according to the preferences of users. We use the attributes of ‘reputation’ ‘compliance’, ‘verity’, and ‘user ranking’ for our evaluation of service quality. In addition,...

Web service technology offers facilities for business process automation. However, Business Process Management Systems (BPMSs) demand additional facilities. For instance, there is no Quality of Service (QoS) management support in the current Web service model. The goal of this paper is to propose a policy-based Web service infrastructure, which offers autonomic service integration using QoS att...

Measurement and improvement of e-service quality is important for sustaining competitive advantage of an e-commerce web site. A number of e-service quality measures have recently been developed that predominantly rely on the subjective evaluation of diverse quality attributes. To increase the objectivity of e-service quality measurement a recently developed measure of e-service quality has been...

We formulate a structural econometric model to analyze the impact of service attributes (warranty length, after-sales service quality) on consumer demand in the U.S.automobile industry. Our results indicate that service attributes play a compensatory role with respect to product quality, i.e., the impact of warranty length and service quality on demand increases when product quality decreases. ...

Supervised clustering is a data mining technique that assigns a set of data to predefined classes by analyzing dataset attributes. It is considered as an important technique for information retrieval, management, and mining in information systems. Since customer satisfaction is the main goal of organizations in modern society, to meet the requirements, 137 call center of Tehran city council is ...

Robots have supported several areas of society, making daily tasks easier and executing dangerous, complex activities. The increasing demand and complexity of these robots have challenged the design of robotic systems, i.e., the software systems that manage robots. In this context, Service-Oriented Architecture (SOA) has been pointed out as a promising architectural style to structure such syst...

We propose in this paper a novel matchmaking approach between fuzzy user queries and real world Web services. The matchmaking spans over a domain dependent classification step that produces fuzzy classification rules for Web services. The elaborated rules leverage a core set of non-functional quality attributes, which is extracted using rough sets theory. Furthermore, these rules are leveraged ...