Integrating Behavioral Trust in Web Service Compositions

Abstract

Algorithms for composing Web services (WS)

On the analysis of reputation for agent-based web services

“…In the literature, the reputation of web services have been intensively stressed [12] [19]. In [20], the authors have developed a framework aiming to select web services based on the reputation policies expressed by the users.…”

Composing Trust Models towards Interoperable Trust Management

“…In the case of Web service composition, some approaches (e.g., [15]) evaluate the recommendation for each service by evaluating its provider, whereas other approaches (e.g., [11]) evaluate the service itself in terms of its previous invocations, performance, reliability, etc. Then, trust is composed and/or aggregated according to the service composition flow (sequence, concurrent, conditional and loop).…”

“…To do so, o e is extended (see lines [9][10][11][12][13][14][15][16][17][18] to enable the mediator role µr (when it performs this operation) to retrieve similar o e output relations in T M C , i.e., the relations l a and l b that are respectively similar to l 1 and l 2 . The operation o e can hence call o 4 or o 7 to search for l 1 or l 2 .…”

“…In the algorithm, the mediator interacts with r s (see lines 2-4) and r t (see lines 5-7). Then, the mediator computes the matching relation for each output relation (see lines [11][12][13][14][15][16][17][18] of the reply, where we assume that there is only one such relation (see lines 12-13) and requests its value using the appropriate request operation (see lines [16][17][18]. We further consider that the mediator (µr) embeds a library of mediation functions that translate and normalize heterogeneous trust metrics, which are invoked by mediation operations µo (see lines [12][13][14].…”

Trust and Privacy Enabled Service Composition Using Social Experience

“…[1] targeted OWL-S upper ontology and followed a reputation based approach for selecting highly trusted composite web service. Paradesi et al [15] adopted a multiagent based reputation model to define trustworthiness of services. Moreover, they developed a trust framework to derive trust for a composite service from trust model of component services.…”