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Handbook of Sustainable Design of Digital Services

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Contents    ODD#12     ODD#13    

Can text replace certain types of images (icons, picto ...) ?

Recommendation 

Text

B People

A Planet

B Prosperity

Difficulty

*

Priority

High

Récurrence

OnUpdate

Tests

How many images contain only text?

Precisions

The weight of an image, thus its impact, is incomparable with text. Whenever the choice of using an image is made, it should not be possible to replace it with plain text. Reducing the number of images decreases the impact of using the service.

Use Case

User journey presents images used in the service and value added they give

Pidila-336

Additional elements

Operational issues related to the project

Posts

Rule for assessing the level of compliance of the criterion

Number of images analyzed / Number of images

Life cycle

Conception

13 other criteria related to the recommendation: Reduce the footprint of static content

Recommendation Essential

Pictures

Have the images been compressed upstream in a format suitable for viewing ?

Recommendation

Pictures

What images are really meaningful and useful for understanding the service (examples: logo, images, links, contractual images, etc.) ?

Recommendation

Pictures

What images can we avoid (not useful for understanding the service) ?

Recommendation

Pictures

Is an alternative to images always available ?

Advice

Animated content

Is the information overlay removed ?

Recommendation

Text

Has the impact of internationalisation (multi-languages, etc.) been assessed ?

Recommendation

Text

Is there a limit to the number of different fonts ?

Recommendation

Text

Do you prefer system fonts ?

Advice

Forms

Is the configuration of the form minimal (so as not to overload the code for unhelpful styles) ?

Recommendation

Forms

Does the form allow the user to disable dynamic functions (ex: auto completion) ?

Recommendation

Forms

Are the forms useful (example: not creating an account for the purchase of a product / service - e-commerce) ?

Advice

Forms

Are robots banned and unsolicited access treated by inexpensive solutions (captcha vs "addition", ....) ?

Recommendation

Forms

When selection lists are available, are they limited to values ​​relevant to the service user ?