Manfred Broy

Ketil Stølen

A mathematical and logical foundation for the specification and development of interactive systems based on a model that describes systems in terms of their input/output behavior. Based on this model, the authors build a basic method, called FOCUS, that enables interactive systems to be described by characterizing their histories of message interaction. The book progresses from an introduction and guided tour of FOCUS through streams, specifications and their properties, and behavioral, interface, and conditional refinements.

Focus on Streams, Interfaces, and Refinement

Specification and Development of Interactive Systems

Fabio Martinelli

William H. Winsborough

Fabio Massacci

This book constitutes the refereed proceedings of the 4th International Conference on Trust Management, iTrust 2006. 30 revised full papers and 4 revised short papers are presented together with 1 keynote paper and 7 trust management tool and systems demonstration reports. Besides technical issues in distributed computing and open systems, topics from law, social sciences, business, and philosophy are addressed.

4th International Conference, ITrust 2006, Pisa, Italy, May 16-19, 2006, Proceedings

Trust Management

Atle Refsdal

Bjørnar Solhaug

This book provides a brief and general introduction to cybersecurity and cyber-risk assessment. Not limited to a specific approach or technique, its focus is highly pragmatic and is based on established international standards (including ISO 31000) as well as industrial best practices. It explains how cyber-risk assessment should be conducted, which techniques should be used when, what the typical challenges and problems are, and how they should be addressed. The content is divided into three parts. First, part I provides a conceptual introduction to the topic of risk management in general and to cybersecurity and cyber-risk management in particular. Next, part II presents the main stages of cyber-risk assessment from context establishment to risk treatment and acceptance, each illustrated by a running example. Finally, part III details four important challenges and how to reasonably deal with them in practice: risk measurement, risk scales, uncertainty, and low-frequency risks with high consequence. The target audience is mainly practitioners and students who are interested in the fundamentals and basic principles and techniques of security risk assessment, as well as lecturers seeking teaching material. The book provides an overview of the cyber-risk assessment process, the tasks involved, and how to complete them in practice.

Cyber-Risk Management

Ketil Stølen

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