G113 – Minimize the number of steps it takes to reach a given screen.

Standard

Guideline:

Minimize the number of steps it takes to reach a given screen.

Guideline Description:

The steps should be simple and number of steps needed to achieve a given screen should be minimized, fostering a good navigation. An useful way of presentation is through of the use of a hierarchy and grouping of information into meaningful categories, focusing only the most relevant items.

Avoid

Complex, multi-step process.
Procedures inconsistent with established practice.
A deep hierarchy.

Example

example g113Examples of well-designed hierarchy menus.

Illustration adapted from Design Recommendations for TV User Interfaces for Older Adults: Findings from the eCAALYX Project

Source:
Design Principles to Accommodate Older Adults,2012
Design Recommendations for TV User Interfaces for Older Adults: Findings from the eCAALYX Project,2012

Tags: Content, Elderly, Layout,  Memory, Navigation, Screen

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G106 – Background screens should not be pure white or change rapidly in brightness between screens.

Standard

Guideline:

Background screens should not be pure white or change rapidly in brightness between screens.

Guideline Description:

Aging process brings some visual impairments. Reading text  on a computer can represent an difficult task. The older users not only have difficult to read characters too small but also standard white screen can hamper this task. Older adults also adapt more slowly to changes in illumination, so the rapidly changes  in brightness between screens should be avoided.

Example:

example_g106_

Some examples of colors combination to avoid, and a good example of colors combination.

Source:

Designing touch-based interfaces for the elderly,2010

Tags:

Colors, Content, Elderly, Graphics, Layout, Screen.

G103 – Provide only one open window e.g. pop up or multiple overlapping windows should be avoided.

Standard

Guideline:

Provide only one open window e.g. pop up or multiple overlapping windows should be avoided.

Guideline Description:

The use of a single window eases the interaction. The use of multiple overlapping windows hampers the interaction, so this technique should be avoid.

Example:

example guideline g103A good example with single window, and example of windows overlapping that should be avoid.

Source:

Designing touch-based interfaces for the elderly,2010

Tags:

Content, Elderly, Layout, Overlap, Screen, Windows

G90 – Use the full screen for the program.

Standard

Guideline:

Use the full screen for the program.

Guideline Description:

The use of full screen mode offers a bigger interaction area, which allows the design of the controls and text displayed with bigger dimensions, very appreciated by older users.

Example:

example g90

An application in fullscreen mode.

Source:

Using the Android Tablet to Develop a Game Platform for Older Adults, 2011

Tags:

Content, Elderly, Layout,  Screen, Windows.

G70 – Maintain consistency in the user interface. Screen layout, navigation and terminology used should be simple, clear and consistent.

Standard

Guideline:

Maintain consistency in the user interface. Screen layout, navigation and terminology used should be simple, clear and consistent.

Guideline Description:

The positioning of the interface elements on the same position in the screen will help the older adults, once older adults have reduced short-term memory. Center of the screen is privileged to give emphasis, increasing the likelihood of user notice the information.

Example:

example g70

Examples of consistent menus with a similar visual appearance.

Illustration adapted from Design Recommendations for TV User Interfaces for Older Adults: Findings from the eCAALYX Project

Source:

Healthcare TV Based User Interfaces for Older Adults, 2010
Designing touch-based interfaces for the elderly,2010

Tags:

Content, Design, Elderly, Layout, Navigation, Screen.

G69 – Avoid the use of scroll.

Standard

Guideline:

Avoid the use of scroll.

Guideline Description:

Conventional user interfaces  resort often  use  of  scrolling  to  display  content  that  cannot  be displayed  on one screen. In  touch-screen interfaces used by the elders this technique should be avoid, not only by their declining working memory that may cause the losing of the context of the task but also because using scroll bars implies hand-eye coordination may be difficult to performing by some older users.

Example:

exemplo G69

An example of scrolling use in a touch-screen interface that should be avoid.

Source:

Healthcare TV Based User Interfaces for Older Adults,2010
Designing touch-based interfaces for the elderly,2010
Touch Screens for the Older User,2011
Design Recommendations for TV User Interfaces for Older Adults: Findings from the eCAALYX Project,2012

Tags:

Content, Elderly,Layout, Memory, Motor, Screen, Scrolling, Windows.

G65 – Concentrate information on the center of the screen.

Standard

Guideline:

Concentrate information on the center of the screen.

Guideline Description:

Reducing od peripheral vision is common in the older adults, this impairment may affect  the viewing of  some details in the sides in the screen.  So, information should be concentrate near of the center of the screen.

Example:

exemplo G65

Identification of the center of the screen ( red color) in a user interface as best place to displaying content.

Source: 

Healthcare TV Based User Interfaces for Older Adults, 2010
Designing touch-based interfaces for the elderly,2010
Design Recommendations for TV User Interfaces for Older Adults: Findings from the eCAALYX Project,2012

Tags:

Content, Design, Elderly, Information, Layout,  Screen.