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Filters: Keyword is requirements engineering  [Clear All Filters]
2018-03-05
Wang, W., Hussein, N., Gupta, A., Wang, Y..  2017.  A Regression Model Based Approach for Identifying Security Requirements in Open Source Software Development. 2017 IEEE 25th International Requirements Engineering Conference Workshops (REW). :443–446.

There are several security requirements identification methods proposed by researchers in up-front requirements engineering (RE). However, in open source software (OSS) projects, developers use lightweight representation and refine requirements frequently by writing comments. They also tend to discuss security aspect in comments by providing code snippets, attachments, and external resource links. Since most security requirements identification methods in up-front RE are based on textual information retrieval techniques, these methods are not suitable for OSS projects or just-in-time RE. In our study, we propose a new model based on logistic regression to identify security requirements in OSS projects. We used five metrics to build security requirements identification models and tested the performance of these metrics by applying those models to three OSS projects. Our results show that four out of five metrics achieved high performance in intra-project testing.

2018-02-15
Hibshi, H., Breaux, T. D..  2017.  Reinforcing Security Requirements with Multifactor Quality Measurement. 2017 IEEE 25th International Requirements Engineering Conference (RE). :144–153.
Choosing how to write natural language scenarios is challenging, because stakeholders may over-generalize their descriptions or overlook or be unaware of alternate scenarios. In security, for example, this can result in weak security constraints that are too general, or missing constraints. Another challenge is that analysts are unclear on where to stop generating new scenarios. In this paper, we introduce the Multifactor Quality Method (MQM) to help requirements analysts to empirically collect system constraints in scenarios based on elicited expert preferences. The method combines quantitative statistical analysis to measure system quality with qualitative coding to extract new requirements. The method is bootstrapped with minimal analyst expertise in the domain affected by the quality area, and then guides an analyst toward selecting expert-recommended requirements to monotonically increase system quality. We report the results of applying the method to security. This include 550 requirements elicited from 69 security experts during a bootstrapping stage, and subsequent evaluation of these results in a verification stage with 45 security experts to measure the overall improvement of the new requirements. Security experts in our studies have an average of 10 years of experience. Our results show that using our method, we detect an increase in the security quality ratings collected in the verification stage. Finally, we discuss how our proposed method helps to improve security requirements elicitation, analysis, and measurement.
2018-02-02
Brunner, M., Huber, M., Sauerwein, C., Breu, R..  2017.  Towards an Integrated Model for Safety and Security Requirements of Cyber-Physical Systems. 2017 IEEE International Conference on Software Quality, Reliability and Security Companion (QRS-C). :334–340.

Increasing interest in cyber-physical systems with integrated computational and physical capabilities that can interact with humans can be identified in research and practice. Since these systems can be classified as safety- and security-critical systems the need for safety and security assurance and certification will grow. Moreover, these systems are typically characterized by fragmentation, interconnectedness, heterogeneity, short release cycles, cross organizational nature and high interference between safety and security requirements. These properties combined with the assurance of compliance to multiple standards, carrying out certification and re-certification, and the lack of an approach to model, document and integrate safety and security requirements represent a major challenge. In order to address this gap we developed a domain agnostic approach to model security and safety requirements in an integrated view to support certification processes during design and run-time phases of cyber-physical systems.

2017-10-19
Knote, Robin, Baraki, Harun, Söllner, Matthias, Geihs, Kurt, Leimeister, Jan Marco.  2016.  From Requirement to Design Patterns for Ubiquitous Computing Applications. Proceedings of the 21st European Conference on Pattern Languages of Programs. :26:1–26:11.
Ubiquitous Computing describes a concept where computing appears around us at any time and any location. Respective systems rely on context-sensitivity and adaptability. This means that they constantly collect data of the user and his context to adapt its functionalities to certain situations. Hence, the development of Ubiquitous Computing systems is not only a technical issue and must be considered from a privacy, legal and usability perspective, too. This indicates a need for several experts from different disciplines to participate in the development process, mentioning requirements and evaluating design alternatives. In order to capture the knowledge of these interdisciplinary teams to make it reusable for similar problems, a pattern logic can be applied. In the early phase of a development project, requirement patterns are used to describe recurring requirements for similar problems, whereas in a more advanced development phase, design patterns are deployed to find a suitable design for recurring requirements. However, existing literature does not give sufficient insights on how both concepts are related and how the process of deriving design patterns from requirements (patterns) appears in practice. In our work, we give insights on how trust-related requirements for Ubiquitous Computing applications evolve to interdisciplinary design patterns. We elaborate on a six-step process using an example requirement pattern. With this contribution, we shed light on the relation of interdisciplinary requirement and design patterns and provide experienced practitioners and scholars regarding UC application development a way for systematic and effective pattern utilization.
2017-07-24
Smullen, Daniel, Breaux, Travis D..  2016.  Modeling, Analyzing, and Consistency Checking Privacy Requirements Using Eddy. Proceedings of the Symposium and Bootcamp on the Science of Security. :118–120.

Eddy is a privacy requirements specification language that privacy analysts can use to express requirements over data practices; to collect, use, transfer and retain personal and technical information. The language uses a simple SQL-like syntax to express whether an action is permitted or prohibited, and to restrict those statements to particular data subjects and purposes. Eddy also supports the ability to express modifications on data, including perturbation, data append, and redaction. The Eddy specifications are compiled into Description Logic to automatically detect conflicting requirements and to trace data flows within and across specifications. Conflicts are highlighted, showing which rules are in conflict (expressing prohibitions and rights to perform the same action on equivalent interpretations of the same data, data subjects, or purposes), and what definitions caused the rules to conflict. Each specification can describe an organization's data practices, or the data practices of specific components in a software architecture.

2017-06-05
Fredericks, Erik M..  2016.  Automatically Hardening a Self-adaptive System Against Uncertainty. Proceedings of the 11th International Symposium on Software Engineering for Adaptive and Self-Managing Systems. :16–27.

A self-adaptive system (SAS) can reconfigure to adapt to potentially adverse conditions that can manifest in the environment at run time. However, the SAS may not have been explicitly developed with such conditions in mind, thereby requiring additional configuration states or updates to the requirements specification for the SAS to provide assurance that it continually satisfies its requirements and delivers acceptable behavior. By discovering both adverse environmental conditions and the SAS configuration states that can mitigate those conditions at design time, an SAS can be hardened against uncertainty prior to deployment, effectively extending its lifetime. This paper introduces two search-based techniques, Ragnarok and Valkyrie, for hardening an SAS against uncertainty. Ragnarok automatically discovers adverse conditions that negatively impact an SAS by searching for environmental conditions that explicitly cause requirements violations. Valkyrie then searches for SAS configurations that improve requirements satisficement throughout execution in response to discovered adverse environmental conditions. Together, these techniques can be used to improve the design and implementation of an SAS. We apply each technique to an industry-provided remote data mirroring application that can self-reconfigure in response to unknown or adverse conditions, such as network message delays, network link failures, and sensor noise.

2017-03-07
Dehghanniri, H., Letier, E., Borrion, H..  2015.  Improving security decision under uncertainty: A multidisciplinary approach. 2015 International Conference on Cyber Situational Awareness, Data Analytics and Assessment (CyberSA). :1–7.

Security decision-making is a critical task in tackling security threats affecting a system or process. It often involves selecting a suitable resolution action to tackle an identified security risk. To support this selection process, decision-makers should be able to evaluate and compare available decision options. This article introduces a modelling language that can be used to represent the effects of resolution actions on the stakeholders' goals, the crime process, and the attacker. In order to reach this aim, we develop a multidisciplinary framework that combines existing knowledge from the fields of software engineering, crime science, risk assessment, and quantitative decision analysis. The framework is illustrated through an application to a case of identity theft.

2014-10-24
Breaux, T.D., Hibshi, H., Rao, A, Lehker, J..  2012.  Towards a framework for pattern experimentation: Understanding empirical validity in requirements engineering patterns. Requirements Patterns (RePa), 2012 IEEE Second International Workshop on. :41-47.

Despite the abundance of information security guidelines, system developers have difficulties implementing technical solutions that are reasonably secure. Security patterns are one possible solution to help developers reuse security knowledge. The challenge is that it takes experts to develop security patterns. To address this challenge, we need a framework to identify and assess patterns and pattern application practices that are accessible to non-experts. In this paper, we narrowly define what we mean by patterns by focusing on requirements patterns and the considerations that may inform how we identify and validate patterns for knowledge reuse. We motivate this discussion using examples from the requirements pattern literature and theory in cognitive psychology.