A Compositional Trust Model for Predicting the Trust Value of Software System QoS Properties

Author

Gamage, Dimuthu U. ; Gallege, Lahiru S. ; Hill, James H. ; Raje, Rajeev R.

Author_Institution

Dept. of Comput. & Inf. Sci., Indiana Univ.-Purdue Univ. Indianapolis, Indianapolis, IN, USA

fYear

2012

fDate

5-7 Dec. 2012

Firstpage

610

Lastpage

617

Abstract

Trust of a software system (i.e., the degree of confidence that a system conforms to its specification) can be defined in terms the composition of trust values for each individual software component (or service) used in the creation of that software system and their interaction patterns. This paper therefore presents the different composition patterns, and the common associations between various quality-of-service (QoS) properties of the composed system for the identified composition patterns. It also presents composition rules for deriving systemic trust values for each composition pattern. Lastly, results from applying the composition patterns to a case study show our trust composition model can predict trust of a composed system with 55%-70% uncertainty that increases with system complexity.

Keywords

quality of service; service-oriented architecture; software quality; trusted computing; compositional trust model; quality-of-service; software component; software composition pattern; software system QoS property; systemic trust value; Authentication; Availability; Equations; Quality of service; Sensors; Software; Time factors; enterprise DRE system; system composition; system properties; trust;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Science and Engineering (CSE), 2012 IEEE 15th International Conference on

Conference_Location

Nicosia

Print_ISBN

978-1-4673-5165-2

Electronic_ISBN

978-0-7695-4914-9

Type

conf

DOI

10.1109/ICCSE.2012.89

Filename

6417348