Slide 1 Chapter 11 User Interface Structure Design Chapter 11 Alan Dennis, Barbara Wixom, and David...
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Transcript of Slide 1 Chapter 11 User Interface Structure Design Chapter 11 Alan Dennis, Barbara Wixom, and David...
![Page 1: Slide 1 Chapter 11 User Interface Structure Design Chapter 11 Alan Dennis, Barbara Wixom, and David Tegarden John Wiley & Sons, Inc. Slides by Fred Niederman.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649edc5503460f94bec5d9/html5/thumbnails/1.jpg)
Slide 1
User Interface Structure Design
Chapter 11Chapter 11
Alan Dennis, Barbara Wixom, and David Tegarden
John Wiley & Sons, Inc.
Slides by Fred NiedermanEdited by Solomon Negash
![Page 2: Slide 1 Chapter 11 User Interface Structure Design Chapter 11 Alan Dennis, Barbara Wixom, and David Tegarden John Wiley & Sons, Inc. Slides by Fred Niederman.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649edc5503460f94bec5d9/html5/thumbnails/2.jpg)
Slide 2
Key Definitions
The user interface defines how the system will interact with external entitiesThe system interfaces define how systems exchange information with other systems
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Slide 3
Key Definitions
The navigation mechanism provides the way for users to tell the system what to doThe input mechanism defines the way the system captures informationThe output mechanism defines the way the system provides information to users or other systems
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Slide 4
Principles for User Interface Design
LayoutContent awarenessAestheticsUser experienceConsistencyMinimal user effort
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Slide 5
Layout Concepts
The screen is often divided into three boxes
Navigation area (top)Status area (bottom)Work area (middle)
Information can be presented in multiple areasLike areas should be grouped together
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Slide 6
More Layout Concepts
Areas and information should minimize user movement from one to anotherIdeally, areas will remain consistent in
SizeShapePlacement for entering dataReports presenting retrieved data
![Page 7: Slide 1 Chapter 11 User Interface Structure Design Chapter 11 Alan Dennis, Barbara Wixom, and David Tegarden John Wiley & Sons, Inc. Slides by Fred Niederman.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649edc5503460f94bec5d9/html5/thumbnails/7.jpg)
Slide 7
Layout Example 1
![Page 8: Slide 1 Chapter 11 User Interface Structure Design Chapter 11 Alan Dennis, Barbara Wixom, and David Tegarden John Wiley & Sons, Inc. Slides by Fred Niederman.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649edc5503460f94bec5d9/html5/thumbnails/8.jpg)
Slide 8
Layout Example 2
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Slide 9
Layout Example 3
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Slide 10
Content Awareness
All interfaces should have titlesMenus should show
where you arewhere you came from to get there
It should be clear what information is within each areaFields and field labels should be selected carefullyUse dates and version numbers to aid system users
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Slide 11
Aesthetics
Interfaces need to be functional and inviting to useAvoid squeezing in too much, particularly for novice usersDesign text carefully
Be aware of font and sizeAvoid using all capital letters
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Slide 12
More Aesthetics
Colors and patterns should be used carefully
Test quality of colors by trying the interface on a black/white monitorUse colors to separate or categorize items
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Slide 13
User Experience
How easy is the program to learn?How easy is the program to use for the expert?Consider adding shortcuts for the expertWhere there is low employee turnover, some training can lessen the impact of less precise interfaces
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Slide 14
Consistency
Enables users to predict what will happenReduces learning curveConsiders items within an application and across applicationsPertains to many different levels
Navigation controlsTerminologyReport and form design
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Slide 15
Minimize Effort
Three clicks ruleUsers should be able to go from the start or main menu of a system to the information or action they want in no more than three mouse clicks or three keystrokes
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Slide 16
USER INTERFACE DESIGN PROCESS
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Slide 17
UI Design Process: Five Step Process
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Slide 18
Use Scenario Development
An outline of steps to perform workPresented in a simple narrative tied to the related DFDDocument the most common cases so interface designs will be easy to use for those situations
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Slide 19
Your Turn
Visit the Web site for your university and navigate through several of its Web pages.Develop two use scenarios for it.
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Slide 20
Interface Structure Design
Window navigation diagram (WND)Shows how all screens, forms, and reports are relatedShows how user moves from one to anotherLike a state diagram for the user interface
Boxes represent components Arrows represent transitions Stereotypes show interface type
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Slide 21
Window Navigation Diagram Example
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Slide 22
Interface Standards Design
The basic elements that are common across individual screens, forms, and reports within the applicationInterface metaphor
Desktop, checkbook, shopping cart
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Slide 23
Interface Elements
Interface objectsInterface actionsInterface iconsInterface templates
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Slide 24
Interface Design Prototyping
A mock-up or simulation of screen, form, or reportCommon methods include
PaperStoryboardingHTMLLanguage
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Slide 25
Storyboard Example
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Slide 26
Interface Evaluation Methods
Heuristic evaluationCompare design to checklist
Walkthrough evaluationTeam simulates movement through components
Interactive evaluationUsers try out the system
Formal usability testingExpensiveDetailed use of special lab testing
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Slide 27
SummaryThe user interface should be designed to make the user’s work easier and more effective.Principles for good interface design include concern for content and context for navigation through activities, aesthetic consideration, assistance for novices and experts, consistency, and minimizing user effort.The design process focuses on user actions, diagramming the structure, setting up standards and a template, then evaluating interface designs.