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THE DESIGN PROCESS (LEARNABILITY (FAMILIARITY (Definition :pencil2:
The…
THE DESIGN PROCESS
LEARNABILITY
FAMILIARITY
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The principle of familiarity is to make use of the new users past experience with other applications. Example
GENERALIZABILITY
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can be seen as a form of consistency. Users often try to extend their knowledge of specific interaction behavior to situations that are similar but previously unknown.Example
SYNTHESIZABILITY
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the ability of the user to assess the effect of past operations on the current state. Example
CONSISTENCY
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relates to the similarities in behavior arising from alike situations or alike task objectives.Example
PREDICTABILITY
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It makes use of the user past knowledge of interacting with a similar system to ease the new system interaction.Example
FLEXIBILITY
TASK MIGRATABILITY
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task migratability is the ability to transfer the control for task execution between system and user.Example
SUBSTITUTIVITY
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It contributes towards flexibility of the system by letting a user choose which action best suits his needsExample
MULTITHREADING
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It is the ability to support more than one task of the user system dialog interaction at a time.Example
CUSTOMIZABILITY
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it can be modified by the system.Example
DIALOG INITIATIVE
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There is two ways to achieve that. One of them is User pre-emptive. In this communication model, the user is the one to initiate an action on the system.Example
ROBUSTNESS
RESPONSIVENESS
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Responsiveness deals with the time needed for the system to communicate with the user. In general, short durations and instantaneous response times are desirableExample
TASK CONFORMANCE
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Task conference ensure that the system allows a user to perform task he needs and in an expecting way. Task completeness covers whether a system can perform all tasks of interest.Example
RECOVERABILITY
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It is the ability of a system to recover in case of an error. There are two directions in which recovery can occur, forward or backward.Example
OBSERVABILITY
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Observability allows the user to evaluate the internal state of the system by means of its perceivable representation at the interface.Example