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The requirement to develop an organization makes collaboration with other organizations necessary, so the organizations can share resources to perform common tasks. Different organizational domains use different access control models to protect their resources from unauthorized access. Organizational collaboration is an important goal for distributed computing paradigms, but policy inconsistencies between domains will cause problems in a collaboration model that add to the problems involved in constructing the collaboration model itself. These problems provide the two challenges that motivate the research presented here: (1) the construction of a collaboration model across multiple domains protected by different access control models; and (2) ensuring that the access control policy used by a participating domain contains no inconsistencies; (3) we also present our new approach to solving the inter-domain role mapping (IDRM) problem, i.e., to determine the minimal role set that covers requested permissions from a collaborating domain. We also analyse our algorithms, present the results of our tests, and compare our results with the results of existing approaches.

Abstract-There has been an enormous increase in globalization that has led to more cooperation and competition across boundaries. Software engineering, particularly distributed software development (DSD) and global software development (GSD), is evolving rapidly and presents several challenges, such as geographical separations, temporal differences, cultural variations, and management strategies. As a result, a variety of situational factors (SFs) arise that causes challenging problems in software development. Both literature and real world software industry study revealed that the extent of the effect of SFs may vary subject to a certain software project. Project executives should need to concentrate on the right SFs for the successful development of a specific project. This work first examines the optimal and most well-balanced GSD-related SFs and then presents a mechanism for prioritizing the SFs to better understand the extent to which an SF generally affects the GSD. A set of 56 SFs in 11 categories is identified and analyzed in this research. A fuzzy set theory based, multi criteria decision making (MCDM) technique, fuzzy analytical hierarchy process (FAHP) was proposed to extract the SFs that have the strongest effects on GSD. The proposed technique is intelligent and automated and can be customized to suit specific conditions and environments. Thus, it can provide support for a much-needed variation that is the hallmark of such software development environments. A case study of a global company working in collaboration on a project JKL was selected to identify and prioritize the most challenging SFs. A sensitivity analysis is carried out to evaluate the extent of the impact for highly ranked SFs related to JKL project.

Abstract-Usability Engineering is one of the most exciting and evolving areas of the research in the domain of human-computer interaction (HCI) and an integral part of HCI. Significant investigation has been conducted on the associations and conflicts between quality aspects but not much of work has been carried out on the identification of conflicts among usability requirement attributes separately. In this paper we have proposed a framework to examine the usability attributes trade-offs, involved in software development. It identifies the conflicts among usability requirement attributes and quantifies these conflicts using fuzzy methodology. The use of fuzzy modeling to deal with vagueness and contradictions in usability factors and its sub-factors makes this study a valuable contribution on this subject.

According to the selection and evaluation of railway freight transport of the third party logistics, establish a complete set of fuzzy hierarchy evaluation (F-AHP) model of railway freight third party logistics company. Taking Nanchang Train Depot as an example of empirical analysis, Calculate and screen the most appropriate third party logistics company. At the same time, we confirm the reliability and authenticity of F-AHP method that applies to the third party logistics company, which provides reference experience for the railway freight department on the selection of third party logistics companies.