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Handbook of Sustainable Design of Digital Services

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Contents    ODD#10     ODD#12    

Is the validity of the data checked before submitting the form ?

Recommendation 

Forms

A People

B Planet

B Prosperity

Difficulty

*

Priority

Medium

Récurrence

OnUpdate

Tests

Do you have a range of values, a format associated with each entry area?

Precisions

Data entry in forms is a source of errors. If the data is only checked after submission of the form, the number of exchanges will increase. Controlling the format of the data expected before sending to the server reduces data transfers and unnecessary processing.

Use Case

Navigation / CHROME : Network

Additional elements

Operational issues related to the project

Posts

Rule for assessing the level of compliance of the criterion

Number of data locally checked / Number of structured data

Life cycle

Utilisation

6 other criteria related to the recommendation: Facilitate the perception of content by the user

Advice

Videos

Does every video content have an associated lifespan ?

Advice

Text

Have we defined the proportion of feed type content (hot news type content, etc.) and stock (cold content, long tail in SEO) ?

Recommendation

Text

Is the content unique across the service ?

Recommendation

Forms

Are user notifications necessary and can they be deactivated by the user ?

Advice

UI

Is the presentation of information accessible without generating a cascade of dynamic presentation areas ?

Recommendation

UI

Does each active element have a name allowing to understand the action which will be carried out by its use ?