Recommendation : 7. Limit the use of hardware components or sensors on user terminals
Are the images to be uploaded properly resized and converted to a thin client-side format before transfer ?
transfers
B People
A Planet
A Prosperity
Difficulty
*
Priority
Low
Récurrence
OnUpdate
Tests
Is there a resizing feature corresponding to the intended use of the uploaded image built into the upload feature?
Precisions
Image transfers introduce peculiarities related to the format of the images, some generate very different file sizes. Image sizes and quality levels very quickly increase the volumes needed to store images. Transcoding and resizing can be carried out before transfers but require processing resources, intermediate storage spaces and create new files which, in the absence of automatic cleanings, can increase the volume of data.
Use Case
Browser tools/consoles allow to check compliance w/ best practices for images resizing, compression (CHROME: extension greenIT : best practices)
Additional elements
Operational issues related to the project
Rule for assessing the level of compliance of the criterion
Number of images not resized on display / Number of images
Life cycle
Déploiement
8 other criteria related to the recommendation: Limit the use of hardware components or sensors on user terminals
Technology
Are the sensors being used as needed, rather than constantly ?
Technology
Are the pause functions available ?
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) ?
Technology
Are predictive algorithms in place to avoid the use of physical sensors ?
transfers
Do you inform users of the size constraints and accepted file format ?
Technical User Experience
Is the frequency of the animation appropriate for the functionality ?
transfers
Do uploads only allow the list of authorized file types ?
transfers
Are the exchanged files compressed ?