By Andrew Shepherd
ISBN-10: 074840838X
ISBN-13: 9780748408382
Hierarchical activity research (HTA) is conducted via pros who've to adopt a variety of human elements and human source layout judgements. utilizing a variety of industries and contexts to illustrate the aplicability of HTA in a variety of settings, the writer has used simple and available case stories and examples for the reader.HTA is a technique of defining targets and initiatives for a specific activity (using components comparable to time, plant prestige, stipulations, directions and series) after which dividing each one objective into 'sub goals', every one with its personal plan, as a way to produce the simplest approach to reaching the ultimate aim.The dialogue of purposes will objective to reenforce normal recommendations of HTA in addition to offer tips on how HTA can be used. there were articles on HTA and chapters in different books, yet there hasn't ever been a ebook at the topic to do it justice. it will be the 1st.
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Additional resources for Hierarchial Task Analysis
Example text
In these cases, expert operators would be identified; the HTA would be conducted initially from the perspective of the system’s goal and would then proceed by considering the goals of the task experts. It is important for the analyst to be aware of this perspective, and it is important to be flexible when working through the analysis. Focusing on the task Finding the right level to start analysis also develops with experience although there are rules-of-thumb and analytical techniques which can help this issue.
This perspective on operations and tasks leads to a definition of task analysis in terms of a process of investigating the factors that affect the attainment of system goals and the generation of design hypotheses to overcome potential performance deficiencies. Hierarchical Task Analysis is one such method of task analysis designed to help an analyst focus upon such problems. Chapter 2 now considers this approach. Chapter 2 HTA—a task analysis framework Hierarchical Task Analysis is a practical process in which an analyst collects different sorts of information about a task and its context in order to reach a satisfactory outcome where potential problems have been identified and where potential solutions have been proffered.
Also, there may be a limit on how much access the analyst can have to personnel and the workplace. For these reasons effort in analysis should be directed where it is most essential. Thus, before examining a goal, the analyst should judge whether the effort is necessary. Examining goals is pointless if the goal is not important. When analysis commences, the main goal to be analysed invariably warrants examination, otherwise the project would not have been initiated. However, when subgoals are examined the analyst needs to focus on the most critical areas.
Hierarchial Task Analysis by Andrew Shepherd
by Anthony
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