G47 – Identification of co-located users, who interact simultaneously need to be more explored.

Standard

Guideline:

Identification of co-located users, who interact simultaneously need to be more explored.

Guideline Description:

Identification of  the users when interacting with a multi-touch  system need to be more explored. Some techniques have been explored, for example, using a depth camera for detecting users.

Example:

examplo G47_2
Bootstrapper uses depth cameras to capturing user’s shoes images  in order to distinguish the users.

Source:

Challenges for Designing the User Experience of  Multi-touch Interfaces, 2010

Tags:

Challenge, Multi-touch, User Identification.

Advertisements

G46 – The lack of tactile user feedback also affects the user experience of data input on multi-touch interfaces.

Standard

Guideline:

The  lack  of  tactile  user  feedback  also  affects  the  user experience  of  data  input  on  multi-touch  interfaces.

Guideline Description:

The  lack  of  tactile  user  feedback (Guideline 41) also  affects  the  user experience  of  data  input on  multi-touch  interfaces, for example, typing in a virtual keyboard.

Example:

examplo G46

An user typing in a virtual keyboard with visual feedback.

Source:

Challenges for Designing the User Experience of  Multi-touch Interfaces, 2010

Tags:

Challenge,Feedback, Multi-touch,User Experience.

G45 – Gestures in use are increasingly becoming inconsistent across different manufacturers, it is necessary to define a standard gestures.

Standard

Guideline:

Gestures in use are increasingly becoming inconsistent across different manufacturers, it is necessary to define a standard gestures.

Guideline Description:

The lacks of standard of gestures make with the gestures in use are increasingly becoming inconsistent across different manufacturers. The creation of standard gestures is also difficult to achieve due to the patents that protect specific gestures for a manufacturer.

Example:

examplo G45

An example of a set of gestures used by a manufacturer.

Source:

Challenges for Designing the User Experience of  Multi-touch Interfaces, 2010

Tags:

Challenge, Gestures,  Multi-touch, Standard.

G44 – Accessibility issues should be taken into account, for example giving tools to allow the use by blind people.

Standard

Guideline:

Accessibility issues should be taken into account, for example giving tools to allow the use by blind people.

Guideline Description:

Blind and visually impaired people face barriers when interacting with touch screens. Due to this factor, tools for this type of people should be provided in order to attenuate this limitation, for example through screen readers.

Example:

examplo G44

VoiceOver is an example of a screen reader.

Source:

Challenges for Designing the User Experience of  Multi-touch Interfaces, 2010

Tags:

Accessibility,Challenge, Multi-Touch, Support, Vision.

G43 – Different physical properties have to be considered while designing the interface (e.g. size of buttons).

Standard

Guideline:

Different  physical  properties have  to  be  considered  while  designing  the  interface  (e.g. size  of  buttons).

Guideline Description:

Different users have different physical characteristics.  The different  physical  properties should be considered  in the design of the  interface  (e.g. size  of  buttons).

Example:

examplo G43

An example of a touch-screen interface, with large buttons.

Source:

Challenges for Designing the User Experience of  Multi-touch Interfaces, 2010
Touch Screens for the Older User,2011
Touch Screen User Interfaces for Older Adults: Button Size and Spacing,2007

Tags:

Buttons,Challenge,Content, Elderly, Layout,Motor, Multi-touch, Target Design.

G42 – It is necessary that interface elements do not are covered by fingers, hands or arms during the interaction.

Standard

Guideline:

It is necessary that interface elements do not are covered by fingers, hands or arms during the interaction.

Guideline Description:

The partial occlusion of the screen caused by fingers, hands and arms when users interacting with surface are an aspect that should be into account in the design of a multi-touch interface. So, the design of interface should avoid occlusions that affecting the interaction, and the hand and arm movements should be considered in the placing the elements in the user interface, in order to prevent early muscle fatigue.

Example:

example_guideline42

Examples of finger occluding pie menu.

Source:

Challenges for Designing the User Experience of  Multi-touch Interfaces, 2010

Tags:

Challenge, Interface, Interaction, Layout, Motor, Multi-touch,  Overlap.

G41 – There is lack of tactile user feedback.

Standard

Guideline:

There is lack of tactile user feedback.

Guideline Description:

The presence of tactile feedback when a interface is touched is important, giving to user the location of the touchs on user interface.

Example:

examplo G41Identification of touches in the interface provide tactile user feedback.

Source:

Challenges for Designing the User Experience of  Multi-touch Interfaces, 2010
Design Principles to Accommodate Older Adults,2012

Tags:

Challenge, Feedback,Multi-touch.