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Handbook of Sustainable Design of Digital Services

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Are the exchanged files compressed ?

Recommendation 

transfers

B People

A Planet

A Prosperity

Difficulty

*

Priority

High

Récurrence

OnUpdate

Tests

Is compression effective?

Precisions

The volume of data transferred increases the environmental footprint of the service, because the data is also stored, secured with duplication, backed up. Some data formats can be compressed to reduce their size, since the compression operation requires computation and intermediate storage resources, it is more efficient for the data to be available in compressed form.

Use Case

Browser tools/consoles allow to check data transfer, size & frequency (CHROME: console / network)

Opquast 108 / pidila-437 / greenIT 107

Additional elements

Operational issues related to the project

Posts

Rule for assessing the level of compliance of the criterion

Number of compressed file transfer / Number of file transfer

Life cycle

Déploiement

8 other criteria related to the recommendation: Limit the use of hardware components or sensors on user terminals

Recommendation

Technology

Are the sensors being used as needed, rather than constantly ?

Recommendation

Technology

Are the pause functions available ?

Advice

Technology

Is the inaccessibility of a sensor, linked to the equipment or to the user's choice, treated to allow the service to be functional nonetheless (if possible) ?

Advice

Technology

Are predictive algorithms in place to avoid the use of physical sensors ?

Recommendation

transfers

Do you inform users of the size constraints and accepted file format ?

Advice

Technical User Experience

Is the frequency of the animation appropriate for the functionality ?

Recommendation

transfers

Do uploads only allow the list of authorized file types ?

Recommendation

transfers

Are the images to be uploaded properly resized and converted to a thin client-side format before transfer ?