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Framework for Measuring Rationale Clarity of AEC Design Decisions

TitleFramework for Measuring Rationale Clarity of AEC Design Decisions
Publication TypeTechnical Report
Year of Publication2008
AuthorsChachere, J, Haymaker, J
Date Published11/2008
Publication Languageeng
KeywordsCenter for Integrated Facility Engineering, CIFE, Clarity, Decision, Decision-Making, Design, Management, Organization Models, Process Modeling, Process Models, Project Management, Rationale, Rationale Clarity Framework, Stanford University, Validation
AbstractCurrent Architecture, Engineering, and Construction (AEC) design processes rely on precedent to resolve complex decisions. However, changing stakeholder concerns, design methods, and building products negate much of this precedent knowledge. Project teams need to clearly communicate their decision rationale in order to develop consensus about design decisions. The AEC industry requires a new framework to evaluate decision making. This paper builds on a broad range of theory including Decision-Based Design, Decision Analysis, Decision Theory, linguistics, logic, organization theory, and social welfare. First, this paper describes rationale as a set of assertions regarding distinct components (i.e. managers, stakeholders, designers, gatekeepers, objectives, constraints, options, and analysis) that support design decisions. Second, this paper describes conditions of clarity (i.e. coherent, concrete, connected, consistent, convincing, certain, and correct). These are used to measure the clarity of assertions, components, and the rationale as a whole. Taken together, this Rationale Clarity Framework (RCF) enables an objective evaluation of existing decision support methods. RCF provides a broad yet structured view for assessing process, organization, and product performance and for assessing AEC industry dynamics.
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