CTA Methods for ndm research COGNITIVE TASK ANALYSIS Exploring the Current World Exploring the Envisioned World Understanding the way people operate aeowerng support for how peop e in their world w Operae ther wond rstand/model expertise, knowledge, strategies, and error Techniques thnographic Observational investigations Decision Method Structured Interview Techniques CTA Scratch odel stand/model complexities, mands, variability, and complicating Functional/Means-ends Analysis ethnographic /Observational investigations unctional Task and Workflow Modeling Discovering how to support the way the world Understanding the way the world works will work nege,c critical decision method in which participants are asked to describe a specific decision-making incident in detail and then to respond to probes seeking elaboration of important aspects of the decision sequences Semantic mapping(ak a, mind-mapping, idea mapping, word webbing, etc. )is a term which describes a variety of strategies designed to show how key words or concepts are related to one another through graphic representations. Mapping is an effective technique for teaching vocabulary and textual patterns of organization, and it is also effective for improving note taking and creativeCTA Methods for NDM Research • critical decision method in which participants are asked to describe a specific decision-making incident in detail and then to respond to probes seeking elaboration of important aspects of the decision sequences. • Semantic mapping (a.k.a., mind-mapping, idea mapping, word webbing, etc.) is a term which describes a variety of strategies designed to show how key words or concepts are related to one another through graphic representations. Mapping is an effective technique for teaching vocabulary and textual patterns of organization; and it is also effective for improving note taking and creative thinking skills. Goal : Understand/model expertise, knowledge, strategies, and error Dis c o v ering sup p ort for ho w p e o ple will o p erate in their w orld Techniques : Ethnographic / Observational investigations Critical Incident Technique Critical Decision Method Structured Interview Techniques Goal : Understand/model complexities, demands, variability, and complicating factors Techniques : Scratch C T A Model Growth of Understanding Time Time Dis c o v ering ho w to sup p ort the w a y the w orld Und erstanding the w a y the w orld w orks will w ork Design Basis Und erstanding the w a y p e o ple o p erate in their w orld E x plorin g th e C urre nt W orld Practitioner(s) Field of Practice The Domain CTA Representation Prototype Representation E x plorin g th e E n visio n e d W orld C O G NITIV E T A S K A N A L Y SIS Adapted from Carnegie Group, Inc. Semantic Mapping Functional/Means-ends Analysis Ethnographic / Observational investigations Functional Task and Workflow Modeling Structured Interview Techniques