Normal accidents. Living with high-risk technologies

Risk Communication: A Handbook for Communicating Environmental, Safety, and Health Risks

Failure in Risk Management

Welcome to the proceedings of the 22nd edition of REFSQ: the International Working Conference on Requirements Engineering – Foundation for Software Quality!

Requirements engineering (RE) has been recognized as a critical factor that impacts the quality of software, systems, and services. Since the term “requirements engineering” was coined, the community of practitioners and researchers has been working tirelessly on the identification, characterization, and evaluation of the multifaceted relationships between aspects of requirements processes, artifacts, and methods and aspects of software quality. The REFSQ working conference series has been well established as Europe’s premier meeting place in RE and as one of the leading international forums dedicated to the conversation on RE and its many relationships to quality.

Requirements engineering: foundation for software quality

[Context/motivation] Game development is characterized by a high level of creativity when compared to other fields of software development. Games cover a multitude of themes and genres, and represent a heterogeneous group of different products with varying requirements and business goals. [Question/problem] Requirements engineering (RE) should be relevant to game development, but is this true and if it is, how does game industry apply RE in practice? [Principal ideas/Results] We interviewed 27 software professionals in seven organizations to understand how requirements engineering is applied in game developing organizations. The results suggest that in game development business practicalities and drive for “fun” dominate the areas associated with requirements engineering. Additionally, game development organizations apply approaches and methods that are comparable to requirements engineering and requirement management, but do not consciously apply common RE practices. [Contribution] This paper extends our understanding of requirements engineering in video game development and contributes to the requirements engineering body of knowledge.

Requirements Engineering: Foundation for Software Quality

The process of describing human activities in procedures has been used since the beginning of the 20th century. However, it...

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How to do it with sticky notes: a method for exploring expert knowledge to prepare guidelines for practice in railway vehicle maintenance

Streszczenie Szczególnym przypadkiem niesprawności pojazdów szynowych, często dotyczącym poziomów utrzymania z częściowym demontażem podzespołów, są uszkodzenia elementów układu napędowego, które objawiają się jedynie podczas jazdy. Są one trudne do wykrycia według standardowych metod stacjonarnych. Wykorzystanie metod selekcji negatywnej lub zaawansowanych metod diagnozowania lokalizacji i identyfi kacji tych niesprawności, może przyczynić się do znacznego wzrostu kosztów obsługi, które wymiernie wpływają na całkowity koszt eksploatacji pojazdu. W takim przypadku konieczne staje się ich zminimalizowanie, przez określenie jedynie stopnia zakłócenia funkcjonowania poszczególnych elementów układu napędowego pojazdu. Umożliwi to lokalizację obszaru wystąpienia niesprawności i podjęcie dalszych decyzji obsługowych. W artykule przedstawiono wyniki testowego wdrożenia funkcjonalnej diagnostyki kontrolnej układów napędowych w eksploatacji wybranego typu pojazdu szynowego. Przedstawiono wyniki badań eksperymentalnych, wykorzystujących pomiary drgań elementów układu napędowego. Na ich podstawie możliwe jest opracowanie wzorcowych wskaźników zakłócenia funkcjonowania elementów układu napędowego pojazdu do zastosowania w diagnostyce kontrolnej taboru.

Uproszczona diagnostyka układu napędowego w eksploatacji pojazdu szynowego

A special case of rail vehicle failures, oft en related to maintenance levels with partial disassembly of components, include damage to the drive system components, which is only manifested during driving. Th ese cases are diffi cult to detect with standard stationary methods. Th e use of selection methods or diagnostic advanced for the location and identifi cation of these failures can contribute to a signifi cant increase in the service cost, which measurably aff ect the overall cost of vehicle operation. In such a case, it becomes necessary to minimize them, by determining only the degree of disruption to the functioning of individual elements of the vehicle’s propulsion system. Th is will allow for locating the area of damage and take further service decisions. Th is article presents the results of the test implementation of a simplifi ed control diagnostics of drive systems in the operation of a selected type of rail vehicle. Th e results of experimental studies based on vibration measurements of drive system components are presented. Based on them, it is possible to develop standard indicators of disturbance of the vehicle’s propulsion system components for use in rolling stock control diagnostics.

Artur Babiak

Papers

How to do it with sticky notes: a method for exploring expert knowledge to prepare guidelines for practice in railway vehicle maintenance

Uproszczona diagnostyka układu napędowego w eksploatacji pojazdu szynowego

Simplified Diagnostics of Drive Systems in the Operation of Railway Vehicles