TY - CONF A1 - Jürjens, Jan A1 - Ochoa, Martín A1 - Schmidt, Holger A1 - Marchal, Loïc A1 - Houmb, Siv Hilde A1 - Islam, Shareeful A2 - Bernardo, Marco A2 - Issarny, Valérie T1 - Modelling Secure Systems Evolution: Abstract and Concrete Change Specifications T2 - Formal Methods for Eternal Networked Software Systems: 11th International School on Formal Methods for the Design of Computer, Communication and Software Systems, SFM 2011, Bertinoro, Italy, June 13-18, 2011. Advanced Lectures N2 - Developing security-critical systems is difficult, and there are many well-known examples of vulnerabilities exploited in practice. In fact, there has recently been a lot of work on methods, techniques, and tools to improve this situation already at the system specification and design. However, security-critical systems are increasingly long-living and undergo evolution throughout their lifetime. Therefore, a secure software development approach that supports maintaining the needed levels of security even through later software evolution is highly desirable. In this chapter, we recall the UMLsec approach to model-based security and discuss on tools and techniques to model and verify evolution of UMLsec models. KW - software evolution KW - UMLsec KW - UMLseCH KW - security Y1 - 2011 UR - https://opus4.kobv.de/opus4-hs-duesseldorf/frontdoor/index/index/docId/1515 UR - https://link.springer.com/chapter/10.1007/978-3-642-21455-4_15 SN - 978-3-642-21455-4 VL - LNCS, 6659 SP - 504 EP - 526 PB - Springer CY - Berlin, Heidelberg ER -