G8 – Ensure the user can easily make interface elements larger (adjustable).

Standard

Guideline:

Ensure the user can easily make interface elements larger (adjustable).

Guideline Description:

The use of large interface elements or through a mechanism that aims to adjust the size of interface elements according to the user preferences,  eases the readability and understanding  of the user  interface, especially for users with some visual impairments.

Example:

example_g8 - Cópia

This example shows an user increasing the size of the interface elements.

Source:

Tabletop Sharing of Digital Photographs for the Elderly,2006
Touch Screens for the Older User,2011
Design Principles to Accommodate Older Adults,2012

Tags:

Accessibility, Adaptability, Elderly, Large-elements, Layout, Legibility, Learnability, Reading, Understanding, Vision, Target Design.

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G1 – Tap gestures (when applied to well recognized objects) are the easiest ones to understand and remember.

Standard

Guideline:

Tap gestures (when applied  to well recognized  objects)  are  the  easiest  ones  to  understand  and remember.

Guideline Description:

The tap gesture is considered a simple gesture for performing in the multi-touch interaction. This gesture is easy to understanding and remembering in the future interactions.

Example:

example_g1

An example of  tap gesture use in a multi-touch interface.

Source:

An Exploratory Study of a Touch-Based Gestural Interface for Elderly,2010

Tags:

Easiness, Elderly, Gestures, Interaction, Intuitive, Learnability, Remembering, Understanding , Multi-touch.