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Handbook of Sustainable Design of Digital Services

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Frontend    ODD#12     ODD#13    

Do you use caching mechanisms to limit exchanges ?

Recommendation 

Flux

C People

A Planet

B Prosperity

Difficulty

**

Priority

High

Récurrence

OnUpdate

Tests

Are the cache mechanisms in place: no no-cache directive, browser cache, API cache?

Precisions

The reduction of the volumes of exchanges, of operations of calculations, processing, and access to data is an axis of optimization of the consumption of resources. The implementation of caching systems reduces the costs of repetitive operations. Cache mechanisms can be deployed at different waypoints in a service. The closer the cache is to the requestor that it is to serve, the smaller the volume of data in transit and the length of the path taken by the data. The closer the cache is to the data source, the more it can be shared by a large number of users, but the data will still be exchanged, only the processing and collection operations will be reduced.

Use Case

Technical documenation mention cache strategy for each flow. Cache management tools are used to validate efficiency (CHROME: network enable-disable cache)

Additional elements

Operational issues related to the project

Posts

Rule for assessing the level of compliance of the criterion

Formalized = 100 ; Planned = 75 ; Identified = 50 ; Ignored = 0 / 100

Life cycle

Réalisation

11 other criteria related to the recommendation: Use environments and tools that limit impacts

Recommendation Essential

API

Are the functionalities covered by local actions (client side) privileged rather than API exchanges ?

Recommendation

API

Is the data fed back by the APIs really only the data that the application needs when it is requested ?

Advice

API

Is an openSource alternative available for APIs ?

Recommendation

Technology

Do the libraries used allow you to take only the components that are actually useful ?

Recommendation

Technology

Are unused dependencies identified and removed ?

Recommendation

Technology

Couldn't the expected functionality be implemented with the native capabilities of the browser ?

Advice

Technology

Is an openSource alternative available ?

Recommendation

Technology

Are all the technical equipment used by the service identified ?

Advice

Technology

For each equipment, are the characteristics available ?

Advice

Technology

Are the functionalities related to regulated data processing (health, personal, banking) validated in terms of interoperability ?

Advice

networks

Are the latest technical advances used when they really help reduce impact ?