Use generic wording whenever possible

[tsteur]

As we build a generic analytics solution that can track anything we should use a generic wording whenever possible:

• Eg "Property" instead of "Website"
• Eg "Users" instead of "Visitors" (metrics, dimensions)
• Eg "Sessions by days since last session" instead of "Visits by days since last visit" (reports)
• Eg nb_sessions instead of nb_visits in API output (this will break the API and might not be possible but long term we have to, maybe in Piwik 4.0)
• In general we could sometimes use more generic wording. Eg instead of "No websites found" we could use "No matches found"

Please don't think about the actual wording for now. Whether we name it Property or whatever is not important here.

As we still want to have the wording "Website" as before we will need to develop a type "Website" that translates the generic terms into the "Website" terms such as "Visits", "Visitors", ...

If no type is activated or as soon as we deal with multiple types we fall back to a generic wording. Eg if the current Website chooser only contains websites, we use the "Website" wording. If it contains "Websites" and "Mobile Apps" we fall back to the generic wording "Properties".

This will make it much easier for plugin developers to develop a custom type since it would be a lot more work to rename everything if we do not have a generic wording by default and it would be very confusing to translate everything from the type "Website" into another type. Also long term we would need this anyway otherwise we will always have a "hacky" solution.

This issue is a problem since it is kinda required to develop #7131 and #4734 but we cannot develop the type without having #7131 and 4734 implemented. We do not want to have the generic wording at any point in the UI for now so we will need to have a website type developed when working on this. To solve this the generic wording could be a type as well that cannot be disabled. So at some point we just swap the website type with the generic type.

We will most likely create issues for all points mentioned in the above list to go towards this step by step. For now this issue is here to collect ideas how to make it possible, to collect possible problems, solutions etc.

[mattab]

The idea is to have generic wording in Piwik core, that will work well for Websites, Apps, Intranets, etc.

Later on plugins will be able to rename each of these metrics, for example for Car analytics #6776 - see follow up issues:

• Let a type rename words "Website", "Site", "Websites" and "Sites" Let a type rename words "Website", "Site", "Websites" and "Sites" #7833
• Add possibility to rename metrics based on the type of the site Add possibility to rename metrics based on the type of the site #7824
• Provide a way for a type to rename any report and to disable/enable reports Provide a way for a type to rename any report and to disable/enable reports #7823