3.HCI - HUMANCOMPUTER INTERACTION FETHI CALISIR, Ph.D.

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HUMAN-COMPUTER  INTERACTION FETHI CALISIR, Ph.D.
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Goal of Interaction Design To specify the mechanisms for accessing and manipulating task information Usability of Interaction How well can users predict how to pursue their  goals? Does the mechanism for accomplishing these goals  provide a comfortable and pleasant experience?
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Methodology for Effective Interface  Design Define and know the users Define system requirements (What the system  objectives are and how they will be achieved) Define task requirements (Task analysis will show  sequential and simultaneous manual and cognitive  activities of users) Utilize existing design guidelines/develop new ones Design the user interface Develop prototypes Conduct user acceptance testing Train the users Conduct follow-up evaluations and enhancements
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The Gulf of Execution Intention to act – User develops system goals Sequence of actions – User develops an action plan for       accomplishing these goals Execution of the action sequence – User executes the plan
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Interaction Design Steps Indicate what system goals are possible Help user to make action plans for      accomplishing them Provide the mechanisms for the user to execute     the plans
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User goal: What a user wants to happen The user is (presumably) using the system because it  helps the user accomplish these goals The user goals are part of the user’s mental model of  the system Usability is a measure of how well the system assists  the user in accomplishing these goals
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This note was uploaded on 12/19/2011 for the course ECON Econ203 taught by Professor Majdabpadawnan during the Spring '11 term at University of Maribor.

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3.HCI - HUMANCOMPUTER INTERACTION FETHI CALISIR, Ph.D.

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