The Usability Engineering Lifecycle: A Practitioner's Handbook for User Interface Design

By Deborah J. Mayhew

Chapter 9: Conceptual Model Mock-ups

Chapter 9: Conceptual Model Mock-ups

Purpose

There are several reasons to build Conceptual Model Mock-ups:


	?	The main point of Conceptual Model Mock-ups is to support formal evaluation of the Conceptual Model Design(s) generated in the previous task, in the Iterative Conceptual Model Evaluation task that comes next . Evaluation at this earliest stage of design means that you will not invest a lot of time designing without knowing whether you are on the right track.


	?	Comparing alternative Conceptual Model Designs in the Iterative Conceptual Model Evaluation task that comes next allows you to select the best model to move forward with and gives you more insight into the design issues represented in the alternative models that could not be resolved based on Requirements Analysis data alone.


	?	Recruiting users to evaluate very early, very high-level design ideas (in the Iterative Conceptual Model Evaluation task) helps to continue the ongoing, highly iterative process of understanding and addressing user requirements. An ongoing give-and-take between designers and users is simply a more effective approach than a monolithic approach in which Requirements Analysis is carried out exhaustively, followed by complete detailed user interface design.

Evaluation at this earliest stage of design helps you determine if you are on the right track before you invest a lot of time in design

Description

You are building the mock-ups to support evaluation of the general Conceptual Model Design rules you generated in the previous task. Thus, the Conceptual Model Mock-ups...

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The Usability Engineering Lifecycle: A Practitioner's Handbook for User Interface Design

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Chapter 9: Conceptual Model Mock-ups

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