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Handbook of Sustainable Design of Digital Services

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Backend    ODD#9     ODD#12     ODD#13    

Do interactions between components benefit from caching mechanisms ?

Recommendation 

Architecture

B People

A Planet

B Prosperity

Difficulty

**

Priority

High

Récurrence

OnUpdate

Tests

What caching mechanism is implemented for the interactions between components?

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 mechanisms reduces the costs of repetitive operations. Caching of data may occur at different levels (computers) in a software system. 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

Déploiement

16 other criteria related to the recommendation: Use the technical components that improve the sustainable IT aspects, security and performance

Recommendation Essential

Quality

Is the documentation of the functionality available to enable its reuse ?

Advice

Performance

Is the web server used asynchronous and multi-threaded ?

Advice

Performance

Has the dependency tree of the integrated components been evaluated ?

Advice

Performance

Can dependencies be reduced by using an alternative component ?

Advice

Performance

Is the user informed of a processing in progress in the background ?

Advice

Performance

Has the integration of asynchronous processing been evaluated ?

Recommendation

Performance

Are unused resources freed up as quickly as possible ?

Advice

Performance

Is a VM necessary as opposed to a container solution ?

Recommendation

Performance

Does service availability require redundancy ?

Recommendation

Architecture

Are the browser caches not being blocked by the framework or technology used ?

Advice

Architecture

Is there a lighter framework / library that meets the functional need ?

Advice

Architecture

Is an Open Source solution available for the functional need ?

Advice

security

Are the versions of the components used tracked and deployed ?

Recommendation

security

Is the security implemented justified with regard to the operations carried out ?

Advice

Data processing

Is the level of logs adapted to the environment ?

Recommendation

Data processing

Are temporary files included in the "logrotate" ?