A Reallocation Approach for Software Trustworthiness Based on Trustworthy Attributes

Hongwei Tao, Yixiang Chen and Hengyang Wu
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Hongwei Tao: College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
Yixiang Chen: MoE Engineering Center for Software/Hardware Co-Design Technology and Application, East China Normal University, Shanghai 200062, China
Hengyang Wu: School of Computer and Information Engineering, Shanghai Polytechnic University, Shanghai 201209, China

Mathematics, 2019, vol. 8, issue 1, 1-15

Abstract: Software trustworthiness is an important research field in software engineering. In order to appropriately evaluate it, some different measurement approaches have been proposed, which have important guiding significance for improving software trustworthiness. Recently, we have investigated attributes-based approaches. That is, how to maximize trustworthy degree of some software satisfying a given threshold by adjusting every attribute value such that the cost is minimal, i.e., the sum of all attribute values is as small as possible. The work is helpful to improve the software quality under the same cost. This paper continues this work and considers a reallocation approach to dealing with the problem that the threshold and the minimal constraints of every attribute values dynamically increase. In this process, the costs of trustworthiness improvement should be ensured to be minimal. For this purpose, we firstly define a reallocation model by mathematical programming. Then we introduce the notion of growth function. Based on this, a polynomial reallocation algorithm is designed to solve the above reallocation model. Finally, we verify our work on spacecraft softwares and the results show that this work is valid.

Keywords: trustworthy software; trustworthy attribute; trustworthiness measurement; reallocation for software trustworthiness (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2019
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