title: System Architecture, Dependability and Modes creator: Laibinis, Linas creator: Troubitsyna, Elena creator: Iliasov, Alexei creator: Romanovsky, Alexander subject: Event-B subject: Refinement subject: Composition and reuse subject: Resilience subject: Model construction description: The mode, defining the specific type of functional behaviour that a system exhibits during its operation, is an important architectural level concept, which has a significant impact on system design, verification and dependability. The notions of modes and mode changes are widely used by the industrial engineers to structure reasoning about different conditions of system functioning. Even though there has been some work on developing modal systems, we still lack a general understanding of how to architect, verify and ensure dependability of such systems. In our work we rely on formal modelling and verification to study intricate relationships between fault tolerance, operation modes and architectural design. date: 2010-04 type: Conference or Workshop Item type: PeerReviewed format: application/pdf identifier: http://deploy-eprints.ecs.soton.ac.uk/214/1/edcc-fa-final.pdf identifier: Laibinis, Linas and Troubitsyna, Elena and Iliasov, Alexei and Romanovsky, Alexander (2010) System Architecture, Dependability and Modes. In: Eighth European Dependable Computing Conference (Fast Abstract Track), April 28-30, 2010, Valencia, Spain. relation: http://deploy-eprints.ecs.soton.ac.uk/214/