G112 – Avoid note taking or scribble functions.

Standard

Guideline:
Avoid note taking or scribble functions.

Guideline Description:

The use of note taking or scribble functions should be avoid. This technique reduces the legibility.

Example

example g112Example of an application using handwriting.

Source:

Designing touch-based interfaces for the elderly,2010

Tags:

Design, Elderly, Layout, Legibility, Multi-Touch

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G109 – Use medium or bold face type, e.g., Sans Serif type font,i.e., Helvetica, Arial. Avoid other fancy font types.

Standard

Guideline:

Use medium or bold face type e.g. sans serif type font i.e. Helvetica, Arial. Avoid other fancy font types.

Guideline Description:

Selecting an appropriate font type is crutial in a design of user interface for the older adults. Using sans serif fonts, such as, Arial Helvetica Century Gothic, facilitates the  reading of texts on the screen. The size of  font type should be large or preferably adjustable.

Recommended

Sans Serif:          Arial           Helvetica     Century Gothic

Size recommended for body text:  12pt or 14 pt

Avoid

Script Fonts and decorative fonts that are difficult to read.
Use of font types with serifs.

Example:

example g109Text examples using as font size, 12 and 14 points.

Source:

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


Tags:

Design, Elderly, Font Type, Layout, Reading,  Text,Vision.

G108 – Main body of the text should be in sentence case and not all capital letters.

Standard

Guideline:

Main body of the text should be in sentence case and not all capital letters.

Guideline Description:

Writing of text should use the sentence case and avoid the use of the uppercase. Meanwhile, the uppercase can be used to draw attention of some text parts, example: UPPERCASE DRAWS ATTENTION.

Avoid:

Uppercase should not be used for long text blocks.

Example:

example g108

Example of texts using uppercase and sentence case.

Source:

Designing touch-based interfaces for the elderly,2010
Design Principles to Accommodate Older Adults,2012

Tags:

Design, Elderly, Layout, Reading, Text, Vision.

G107 – The text should be double spacing between the lines.

Standard

Guideline:

The text  should be double spacing between the lines.

Guideline Description:

The ideal text spacing for older adults in body text is double-spaced; this format increases the readability and legibility.

Example:

example g107_

This example shows the use of double-spaced text.

Source:

Designing touch-based interfaces for the elderly,2010

Tags:

Design, Elderly, Layout, Legibility, Reading, Text, Vision.

G104 – Language should be simple, clear, uses the active voice and uses positive phrasing.

Standard

Guideline:

Language should be simple, clear, uses the active voice and uses positive phrasing.


Guideline Description:

The use of simple language  in a user interface for older adults, is important for a good understanding, otherwise they may have difficulties in the interpretation.

Example:

example g104An user interface example with simple language.

Source:

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

Tags:

Communication, Content, Elderly, Design,  Language, Layout.

G100 – Avoid repetitive actions

Standard

Guideline:

Avoid repetitive actions

Guideline Description:

The older adults may suffer of physical impairments causing a diminished of motor capabilities in particular stiffening of the joints and arthritis, reducing the ability to cope with fast repetitive movements. Due to this factor repetitive actions should be avoid.

Example:

example _ g100The movement of the objects A, B, C from container 1 to container 2 is an example of a repetitive task.

Source:

Designing touch-based interfaces for the elderly,2010

Tags:

Design,Elderly, Interaction, Motor, Navigation

G74 – Provide a cursor showing clearly the selected target. It should be obvious to older adults what can be selected and what cannot.

Standard

Guideline:

Provide a cursor showing clearly the selected target. It should be obvious to older adults what can be selected and what cannot.

Guideline Description:

Older adults tend to lose attention frequently, so in a user interface it is important identifying which element on the screen is being currently selected. Older adults also presenting a reduced  working memory causing difficulty in the tasks that  involving reasoning,  which include the ability to understanding what the user can and cannot do, and the ability to remembering the steps required to complete a task. Because of this, in a user interface should be obvious what can be selected and what cannot by older adults.

Example:

exemplo G74This example uses a yellow highlight to distinguish the selected item in the menu.

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
Touch Screens for the Older User,2011
Design Recommendations for TV User Interfaces for Older Adults: Findings from the eCAALYX Project,2012

Tags:

Affordance , Design, Elderly, Layout,  Selection, Target Design