Chapter 8: User Interface
Kent Institute Australia Pty. Ltd.
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Version 2 – 18th December 2015
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Prescribed Text and recommended readings
Rosenblatt, H. J. (2016), Systems Analysis and Design.11th Edition, Cengage Learning, Boston MA
Robertson, S. and Robertson, J. (2013), Mastering the Requirements Process: Getting Requirements Right, 3rd Edition, Addison Wesley, Upper Saddle River, NJ
IIBA (2015), Guide to the Business Analysis Body of Knowledge, BABOK Version 3.0, International Institute of Business Analysis, http://www.iiba.org/BABOKGuide.aspx
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Chapter Objectives
Explain the concept of user interface design and human-computer interaction, including basic principles of user-centered design
Explain how experienced interface designers perform their tasks
Describe rules for successful interface design
Discuss input and output technology issues
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Chapter Objectives
Design effective source documents and forms
Explain printed output guidelines
Describe output and input controls and security
Explain modular design and prototyping techniques
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Systems Design Phase Overview
Goal of systems design - To build a system that is effective, reliable, and maintainable
A system is:
Effective if it supports business requirements and meets user needs
Reliable if it handles input errors, processing errors, hardware failures, or human mistakes
Maintainable if it is flexible, scalable, and easily modified
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Will It Succeed?
Suggestions for successful design
Think like a user
Carefully examine any point where users provide input or receive output
Anticipate future needs and provide flexibility
Anticipate possible expansion
Offer several alternatives
Manage data effectively
System should enter and verify data as soon as possible
Input data must be close to its source
A secure system must include audit trails