Copyright, 1995-2002 1 Invitation to Research ENGINEERING RESEARCH TECHNIQUES Roger Clarke, Xamax Consultancy, Canberra Visiting Professor, CSIS, Uni of.

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Copyright, Invitation to Research ENGINEERING RESEARCH TECHNIQUES Roger Clarke, Xamax Consultancy, Canberra Visiting Professor, CSIS, Uni of Hong Kong Visiting Fellow, Australian National University /55-Eng.ppt ebs, January 2003

Copyright, Engineering The Mind-Set / Weltanschauung Can do – Make it work, somehow Theory-Based; but scientific method, and even method, are a constraint, not the driver Possibly architected first, but quite possibly just iterative experimentation If it works, explain / rationalise it later You have to live with the consequences, so build in controls and safety margins

Copyright, Engineering Research Techniques A Taxonomy (5) Construction of an Artefact Conception (based on a body of theory) Design / Creation / Prototyping / Demonstration / Proof of Concept Metrication of Artefact Usage Destruction of an Artefact Testing Application

Copyright, Artefact Types Hardware (perhaps with embedded software) Systems Software Application Software A Symbolic / Mathematical Model

Copyright, Types of Testing and of Test Data In Use In a Real-Life Setting In a Laboratory, but by Users In a Laboratory, by Proxies In an eLaboratory, by Simulation

Copyright, Simulation Creation of a model of a real-world system (probably symbolic, possibly iconic) (probably highly selective, and much-simplified) Experimentation with inputs, in order to gain insights into the patterns of behaviour of outputs under various circumstances

Copyright, Symbolic / Mathematical Models Analytically Soluble Models Deterministic Mathematical Models Probabilistic / Statistical Models Numerically Soluble Process Models Simulation Based on Real Data Simulation Based on Imagined Data Monte Carlo Simulation: sample from input distributions infer distributions of outputs

Copyright, Monte Carlo Simulation

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