title: Supporting productive thinking: The semiotic context for Cognitive Systems Engineering (CSE).
abstract: The central thesis of this paper is that Rasmussen framed his approach to Cognitive Systems Engineering from the perspective of a Triadic Semiotic Model. This frame became the context for integrating multiple intellectual threads including Control Theory, Information Theory, Ecological Psychology, and Gestalt Psychology into a coherent theoretical framework. The case is made that the triadic semiotic framework is essential for a complete appreciation of the constructs that were central to Rasmussen's approach: Abstraction Hierarchy, Skill-Rules-Knowledge Model, Ecological Interface Design, and Proactive Risk Management.
authors.affiliation: Psychology Department, Wright State University, USA. Electronic address: john.flach@wright.edu.
authors.forename: John
authors.initials: J
authors.lastname: Flach
mesh_terms: D003071:Cognition; D004463:Ecology; D006804:Ergonomics / Q000379:methods*; D005863:Gestalt Theory; D006801:Humans; D007257:Information Theory; D019359:Knowledge
keywords: Abstraction Hierarchy; Cognitive Systems Engineering; Decision Ladder; Ecological Interface Design; Proactive Risk Management; Skills-Rules-Knowledge Model; Work domain analysis