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States and Transformations

States and Transformations. for Software Engineering Theory Hannu-Matti Järvinen and Mikko Tiusanen, TUT/Software Systems. Engineering theory. Any theory limits the domain of discourse . Concisely formulated (?). Understandable . Need not be ” final ”.

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States and Transformations

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  1. States and Transformations for Software Engineering Theory Hannu-Matti Järvinen and Mikko Tiusanen, TUT/Software Systems

  2. Engineering theory • Anytheorylimits the domain of discourse. • Conciselyformulated(?). • Understandable. • Neednotbe ”final”. • Applicable at various ”resolutions”: refinable! • Predicts properties of artefacts! Hannu-Matti Järvinen and Mikko Tiusanen TUT/Software Systems

  3. SE artefacts • Computations: transformations of state. • Descriptions of computations (= programs). • Descriptions of programs. • Transformations of programs: SE processes. • Computations or descriptions of such; processes that transform a state; apply recursively. Hannu-Matti Järvinen and Mikko Tiusanen TUT/Software Systems

  4. States and tranformations • Can describe SE artefacts. • Already have lots of theory, in various guises. • What are the ”bulk” properties of interest in the artefacts? • What are the ”fields and potentials” that affect the computations (trajectories)? Hannu-Matti Järvinen and Mikko Tiusanen TUT/Software Systems

  5. Language Mathematics and logic: ”A poor thing but mine own.” (E.G. O’Neill) UNITY, DisCo, TLA, Petri Nets, … Refinement! Prediction of properties? Hannu-Matti Järvinen and Mikko Tiusanen TUT/Software Systems

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