Cognitive Task Analysis?

5 May 2010 - 9:49am
4 years ago
1 reply
923 reads
ravishyam
2009

Hi All, was looking for some pointers on Cognitive Task Analysis.

What are the major differences between HTA and CTA? Are there any specific advantages of using Cognitive Task Analysis than HTA? Is there a specific context where CTA has to be adopted than HTA?

Please do share some samples and pointers, would be of great help :)    thanks   

 

 

Comments

6 May 2010 - 8:10am
William Hudson
2009

Ravishyam -

CTA is a general term while HTA is a specific 'top-down' approach where a task is broken into its component parts. This is repeated for each level until actions that require no further decomposition are reached. So for example, in a typical web or desktop context, actions might be click, scroll or keystroke.

HTA produces tree-like diagrams (with the high-level task at the root). Bear in mind that to be effective, the various levels of hierarchy have to make sense to the population being considered, so should be based on research.

Regards,

William Hudson Syntagm Ltd Design for Usability UK 01235-522859 World +44-1235-522859 US Toll Free 1-866-SYNTAGM mailto:william.hudson@syntagm.co.uk http://www.syntagm.co.uk skype:williamhudsonskype

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-----Original Message----- From: ixdaor@host.ixda.org [mailto:ixdaor@host.ixda.org] On Behalf Of ravishyam Sent: 05 May 2010 22:58 To: William Hudson Subject: [IxDA] Cognitive Task Analysis?

Hi All,

was looking for some pointers on Cognitive Task Analysis. >What are the major differences between HTA and CTA? Are there any specific
>advantages of using Cognitive Task Analysis than HTA? Is there a specific
>context where CTA has to be adopted than HTA? Please do share some samples and pointers, would be of great help :)   
thanks      -- Ravishyam Sriperumbudur Mobile: +91 9008960055 Yahoo :
maverick_ravi@yahoo.com [1] AOL : ravishyam75@aol.com [2] gmail:
ravishyam.s@gmail.com [3]   (((Ple

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