| GreenIT | V2 | V3 | V4 |
|---|---|---|---|
| Life cycle | Tiers | Responsible |
|---|---|---|
| 3. Implementation | User/Device | PO |
| Priority | Implementation difficulty | Ecological impact |
|---|---|---|
| 4 | 3 | 5 |
| Saved resources |
|---|
| Electronic waste |
It is necessary to ensure the website's compatibility with the oldest hardware and software that the users may still use. Web pages must remain available on the most restrictive configurations: no broken layouts, inactive buttons, errors displayed, or any other problem that prevents reading or navigation.
The most restrictive configurations include:
- Oldest browsers versions, or those who trigger most compatibility problems.
- Oldest OS versions.
- Least powerful devices that the users have: smartphones, computers, or others.
Configuration choices will depend on the state of the web at the solution implementation time, as well as the project's context: different audiences will bring different constraints.
This configuration choice can be in part determined with available web traffic statistics. However, take the survivor bias in consideration: users who cannot use the site at all will not appear in these statistics. The best way is to conduct a field study of users and their equipment.
For various reasons (devices that are too old to be updated, lack of administrator access to the system, or ignorance of the existing alternatives), users are stuck on Internet Explorer. Sites developed for modern browsers, using, for example, a lot of flexbox or css grid properties, will not correctly display content on this browser.
| The number of ... | is equal to or less than |
|---|---|
| untested pages on the most restrictive configurations in the project context | 0 |