]> ReSIST Resilience Mechanisms Ontology ReSIST Resilience Mechanisms Ontology The ReSIST Resilience Mechanisms Ontology represents metadata oriented descriptions of resilience mechanisms as part of the resilience-explicit computing section of work within the ReSIST project 0.2 Zoe Andrews Ian Millard 2007-05-09 Resilience Mechanism This class encapsulates a mechanism designed to improve the resilience of a computer based system submitted by The ReSIST Project member who has submitted and is the point of contact for this resilience mechanism has associated project A project that has been involved in the development of this resilience mechanism mechanism objectives The objectives of this resilience mechanism relates to old wg The old ReSIST WP2 working group(s) (Arch, Algo, Socio, Verif and Eval) that this mechanism relates to relates to new wg The new ReSIST WP2 working group(s) (Assessability, Diversity, Evolvability and Usability) that this mechanism relates to assessability comment Comment about how the mechanism relates to the ReSIST WP2 working group on assessability diversity comment Comment about how the mechanism relates to the ReSIST WP2 working group on diversity evolvability comment Comment about how the mechanism relates to the ReSIST WP2 working group on evolvability usability comment Comment about how the mechanism relates to the ReSIST WP2 working group on usability has mechanism category Applicable mechanism categories, eg Process/Architecture/Tool Mechanism Category Mechanism categories are broad classifications of different types of mechanism Resilience Process A category of Resilience Mechanisms which are processes Resilience Architecture A category of Resilience Mechanisms which are architectures Resilience Tool A category of Resilience Mechanisms which are tools has application domain Application domains that the mechanism applies to relates to concept The key concepts involved in the mechanism Resilience Concept Resilience concepts are notions which can be applied to the approach which has been taken in building a resilient system has description A description of this resource has component The components making up the mechanism detailed description A detailed description of the mechanism (sufficient to be able to re-create the mechanism) description of variants A textual description of possible variants of this mechanism to inform domain experts has related mechanism Other resilience mechanisms that are related to this one (for example N-Version Programming is related to Recovery Blocks as they have the same purpose) applies to tehcnology Indicates technolgies to which this mechanism may be applied Knowledge This class encapsulates a body of knowledge has knowledge requirement Knowledge that is required in order to use the mechanism has infrastructure requirement An infrastructure requirement that is needed to use the mechanism has additional requirements A textual description of additional requirements or prerequisites not otherwise captured within the provided properies has failure mode The ways in which the resilience mechanism can fail addresses threat to resilience The threats to resilience which the mechanism aims to address Resilience Metadata Type This class encapsulates a type of resilience metadata about a mechanism has definition The definition for the type of resilience metadata Reliability Metadata A piece of resilience metadata which is related to the reliability characteristics of a mechanism Mean Time Between Failure Metadata A measure of the mean time between failure of a mechanism Resilience Metadata This class encapsulates a piece of resilience metadata about a mechanism has type The type of this piece of resilience metadata has value The value or formula for this specific piece of resilience metadata has unit An indication of the units used to record a resilience metadata value has acquisition method The way in which the resilience metadata should be acquired Metadata Acquisition Method A method by which metadata can be acquired Observed by Mechanism Method of acquiring metadata internally within the mechanism Observed by Outsider Method of acquiring metadata by observing the behaviour of the mechanism Calculated from Metadata Method of calculating metadata values as a result of other metadata has resilience metadata An instance of resilience metadata associated with the mechanism detailed description pub A publication providing a detailed description of the mechanism (sufficient to be able to re-create the mechanism) formal description pub A publication providing a formal description of the mechanism ontology pub A publication providing an ontology of concepts relating to the mechanism diagrams pub A publication providing diagrammatic representations of the mechanism applications pub A publication providing examples of the use of the mechanism faq pub A publication providing frequently asked questions (and answers) about the mechanism related pub Any publications providing relevant information