U.S. General Services Administration GSA FEA Reference Model Ontology A Domain Specific Parsimonious Ontology

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-162 Ockam’s Razor – The Law of Parsimony "Pluralitas non est ponenda sine neccesitate" or "plurality should not be posited without necessity." - medieval English philosopher and Franciscan monk William of Ockham (ca )

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-163 Goals Define an ontology based on FEA reference models Develop common vocabulary, or lexicon, from FEA reference models Support execution, validation, and inference based on FEA reference models Support GSA role in e-Government as market maker Support OMB/AIC partnership in AIC Task 1 & AIC Task 4 by providing lessons learned and an ontology

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-164 Approach Tightly bound problem space – 4/5 reference models Direct translation of natural language into an executable representation Leverage great work, but informal semantics, into formal semantics Uncover the underlying explicit and implicit semantics of the FEA reference models

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-165 Definitions FEA-RMO is an OSERA project artifact Ontology a set of concepts and the relationships among them governed by rules BRM concepts –Business Area –Line of Business BRM relationships –Business Areas contain Lines of Business –Sub-functions are part of a Line of Business

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-166 Purpose Execution for use in searching and transformation Validation for logically consistent, what are the explicit and implicit semantics of the natural language Inference - now that we know what it is, what can we tell about what we have

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-167 Semantic Detective Reference Model Concept PRMLevel BRMLayer TRMTier SRMGranularity fea: MeasurementArea prm: hasLevel prm: Level is-a fea:Partition brm: hasLayer brm: Layer brm: BusinessArea is-a trm: hasTier brm: Tier trm:ServiceArea is-a srm: hasGranularity srm: Granularity srm:ServiceComponent Finding: Each reference model has a property based on partitioning. This reveals implicit semantics in the reference model. These concepts are also the four extensional properties of the Semantic Detective

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-168 Clues for the Semantic Detective … “[…] organizing framework of the PRM that captures aspects of performance at the input, output, and outcome levels” Visual Clues … Textual Clues … Translate into an ontology with an executable structure like …

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-169 Example - Line of Sight They are already linked in very elegant ways, humans just don’t have the capacity to execute, validate, and infer Now we can execute, validate, and infer logical consistency using the best of computer science and mathematics

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-1610 Example - Validation XML type enforcement is insufficient to represent Classification as a Service Component extending from Service Type base types Document Management and Search “More specifically, the PRM’s Measurement Categories are the same as the BRM’s Business Areas and Lines of Business. The Generic Measurement Indicators of the PRM are the same as the Sub-functions of the BRM.”

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-1611 Legislative & Best Practice Drivers brm: ServicesToCitizens brm: lineOfBusiness brm: lawEnforcement brm: customerProtection fea: hasSubfunction brm: hasProcess brm: surveillance brm: hasPerformance prm: PerformanceMeasure prm:hasIndicator prm: CrimePrevention prm:hasSpecialization prm:localCrimeRate fea: citizensOfDC brm: hasCustomer srm: surveillanceCameraSystem brm: realizedWith

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-1612 My 5 Minutes … Policy and procurement: no change – citizen centered, market driven, results oriented Foster groundswell of academic research with FEA- RMO Foster competition and innovation with tool vendors with FEA-RMO Support community development through conferences, technologies, working groups Qualify how rich semantics affect IT investment planning through a market study to answer whether languages like OWL qualify as disruptive ?

Rick Murphy, GSA OCIO Enterprise Architecture Group21-Mar-1613 What’s next for FEA-RMO Provide lessons learned as input to Task 1 & Task 4 Validate through AIC, SICoP, W3C, academics, and entrepreneurs Provide validated artifact as active member to AIC/OMB partnership Define governance and stewardship for FEA-RMO artifact