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Handbook of Sustainable Design of Digital Services

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Architecture    ODD#9    

Are the definitions of SLA and QoS for each of the functions of the application architecture specified in accordance with the business uses ?

Recommendation 

Software Design Sustainable IT

B People

B Planet

A Prosperity

Difficulty

**

Priority

High

Récurrence

Once

Tests

Are there different SLA families for technical architecture elements?

Precisions

The state of the art technology tends to make all components equally reliable and to strive for excellence in the areas of availability and quality of service. In some cases or for certain functionalities, business needs could be satisfied with lighter constraints. When business and usage are not considered, IT tends to exceed expectations so as not to underperform and not to be put under scrutiny.

Use Case

Project

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

5 other criteria related to the recommendation: Anticipate the operation of services

Recommendation Essential

Life cycle

Are the environments other than production (DEV, QA, ...) switched off or decommissioned outside the ranges of use (at night, outside the test periods) ?

Recommendation

Sustainable IT Infrastructure

Are methods in place to measure the actual consumption of the code in production and allow accurate sizing ?

Recommendation

Sustainable IT Infrastructure

Is the hosting of applications densified ?

Recommendation

Life cycle

Are unused production environments outside of peak loads turned off or decommissioned ?

Recommendation

Software Design Sustainable IT

Is the digital service efficient all along its lifespan ?