Task Analysis

Affinity Diagrams
Affinity grouping is a brainstorming method that helps to first generate, then organize ideas or concerns into logical groupings. It is used to sort large amounts of complex, or not easily organized d . (Read Complete Description)
Analytic Hierarchy Process (AHP)
The analytic hierarchy process (AHP) is a comprehensive, logical and structural framework, which is useful in understanding complex decisions by decomposing the problem in a hierarchical structure. Th . (Read Complete Description)
Applied Cognitive Task Analysis (ACTA)
ACTA is a streamlined software tool designed to help practitioners in identifying cognitive skills necessary to perform a task. It consists of three interview methods: 1. Task Diagram Interview - prov . (Read Complete Description)
Applied Cognitive Work Analysis (ACWA)
ACWA is a streamlined and pragmatic version of cognitive work analysis based on Rasmussen's Functional Abstraction Hierarchy. Its purpose is to facilitate the incorporation of cognitive task analysis . (Read Complete Description)
Behavioral Task Analysis
Behavioral task analysis evolved from the influences of behaviorism. Behavioral analysis breaks a task down into discrete, observable, actions. The skill is described as a linear sequence of observabl . (Read Complete Description)
Card, Morn, and Newell GOMS (CMN-GOMS)
CMN-GOMS is the original GOMS model proposed by Card, Moran and Newell (1983). CMN-GOMS builds on KLM-GOMS by adding subgoals and selection rules. A CMN-GOMS model can predict operator sequence as wel . (Read Complete Description)
Cloze Technique
The name "Cloze" comes from the word "closure". The Cloze technique was originally developed as a method of assessing reading comprehension. It is a "fill-in-the-blanks" activity where the subject use . (Read Complete Description)
Cognitive Analysis Tool (CAT)
CAT is a computerized GOMS technique for soliciting information from experts. It was developed by Dr. Kent Williams in 1992. CAT allows the user to describe his or her knowledge in an area of expertis . (Read Complete Description)
Cognitive Task Analysis (CTA)
CTA captures the experience, knowledge, and intuition of subject-matter experts by uncovering the cognitive skills and abilities needed to perform a task proficiently. As opposed to the traditional jo . (Read Complete Description)
Cognitive Work Analysis (CWA)
Cognitive Work Analysis was developed in the 1970s at the Risø National Laboratory in Denmark, to facilitate human-centered design. Cognitive work analysis focuses on identifying the constraints that . (Read Complete Description)
Cognitive-Perceptual-Motor GOMS (CPM-GOMS)
CPM-GOMS builds on previous GOMS models by assuming that perceptual, cognitive and motor operators can be performed in parallel. Where other GOMS techniques assume that humans do one thing at a time, . (Read Complete Description)
Cognitively Oriented Task Analysis (COTA)
Cognitively oriented task analysis employs a breadth then depth strategy for identifying job expertise. Starting with a task by knowledge framework, job expertise is successively elaborated using inte . (Read Complete Description)
Conceptual Graph Analysis
Conceptual graph structures are a method of visually depicting internal knowledge structures during a cognitive task analysis. These graphs consist of nodes connected via arcs. Nodes in a conceptual . (Read Complete Description)
Content Analysis
Content analysis is a research tool that uses a set of categorization procedures for making valid and replicable inferences from data to their context. It is analogous to card sorting. Researchers qua . (Read Complete Description)
Contextual Inquiry
Contextual Inquiry is both a form of field study and a data analysis technique. The guiding principle is that users are to be studied in their normal working context. Users are studied as they execute . (Read Complete Description)
Critical Incident Technique
The Critical Incident Technique consists in collecting information on incidents occurring during a specific period of time. Operators are asked to identify specific incidents which they experienced pe . (Read Complete Description)
Critiquing is a CTA methodology that walks through a novice’s process on a task in order to serve as a probe for elicitation of commentary from experts. . (Read Complete Description)
Decompose, Network, and Assess (DNA) Method
DNA (Decompose, Network, Assess) is a cognitive tool being designed to help expedite, without sacrificing accuracy, the cognitive task analysis (CTA) phase of developing intelligent assessment or tuto . (Read Complete Description)
Goal-Directed Task Analysis (GDTA)
GDTA is a cognitive task analysis technique developed by Endsley that is concerned with the situation awareness requirements necessary to complete a task. Structured interviews, observations of operat . (Read Complete Description)
Goals Operators Methods and Selection Rules (GOMS) Family
GOMS is a theory of the cognitive skills involved in human-computer tasks. GOMS is an acronym that stands for GOALS, OPERATORS, METHODS, and SELECTION RULES. Goals = Task decomposed into nested hierar . (Read Complete Description)
Hierarchical Task Analysis (HTA)
Hierarchical task analysis, also called HTA, is a broad task analysis method, which describes the task in terms of a hierarchy of operations and plans based on structure chart notation. The hierarchic . (Read Complete Description)
Keystroke-Level Model (KLM-GOMS)
The Keystroke-Level Model is a simplified version of GOMS that deals mainly with observable vents and is organized as a single stream of sequential operators. It was proposed by Card and Moran (1980) . (Read Complete Description)
Natural GOMS Language (NGOMSL)
NGOMSL builds on CMN-GOMS by providing a natural-language notion for representing GOMS models, as well as a procedure for constructing the models. Under NGOMSL, methods are represented in terms of an . (Read Complete Description)
Operator Function Model (OFM)
The operator function model is proposed as an alternative to traditional task analysis techniques used by human factors engineers. An operator function model attempts to represent in mathematical form . (Read Complete Description)
P Sort
P Sort is a sorting technique where the expert is asked to sort a limited number of domain concepts into a fixed number of categories. . (Read Complete Description)
Procedural Analysis
Procedural analysis refers to a set of task-analytical methods that are apt to analyze skills that show a temporal order of involved steps. It is precisely for this reason that the analysis result is . (Read Complete Description)
Q Sort
Q-sorting is a process whereby a subject models his or her point of view by rank-ordering items into 'piles' along a continuum defined by a certain instruction (McKeown & Thomas, 1988, p. 30). A basic . (Read Complete Description)
Signal Flow Graph Analysis
Commonly used in the electronics industry, the signal flow graph represents a diagram of relationships among a number of important variables within a system. It begins with the selection of an output . (Read Complete Description)
Task Decomposition
The purpose of task decomposition is to decompose high level tasks into their constituent subtasks and operations. This will show an overall structure of the main user tasks. The process of task decom . (Read Complete Description)
Task-Knowledge Structures (TKS)
TKS was developed as a theoretical approach to analyzing and modeling tasks with the purpose of design generation. In TKS theory a task is defined as an activity, performed by agents, to bring about a . (Read Complete Description)
Team Cognitive Task Analysis (Team CTA)
Team CTA considers the team as an intelligent entity that can be studied to aid team task design, team composition, team training. Current methods of task analysis fail to capture team characteristics . (Read Complete Description)