What is it for: Collection Editor > Conditions tab?

[mhd]

Does anyone know why there is this Conditions tab in the Collection Editor, where you can include/exclude conditions?

From Flare, I understand that 1) you mark elements with conditions at almost any level inside the project, 2) at the target level, you exclude/include these marked elements.
In Mimic, I think that 1) you mark elements with conditions at almost any level inside the collection, 2) at the target level, you exclude/include these marked elements.

What's the point to set exclude/include actions at the collection level? Talking about Flare, it would be the same as setting exclude/include actions at the project level.
Am I wrong? I don't understand.

I hope that someone can take the time to explain. Thanks in advance!

[kwag_myers]

Let's say you have three user groups: North American, European, and Global. North American users have movies for procedures A, B, and C in their collection. European users have A, C, and D. The Global user group would have both North American and European collections in the output. Does that help?

[mhd]

Thanks for reply, kwag_myers. Sorry, I'm not sure to understand your example.

The 3 user groups share the same collection?
This collection contains -let's say- 4 movies, for procedures A, B, C, D?
The A, B, C, D movies would be conditioned (in each movie properties, marked A, B, C, or D)?
In the collection, there would be 1 target for the NA group, where D would be excluded (through the target properties); 1 target for the E group, where B would be excluded, and 1 global target including everything.

If that makes sense, I still do not understand why the include/exclude action *on the collection*. When is this i/e action "expressed"? At building time. Building of what? Of the collection targets. But targets have their own i/e actions...

Can one project contain several collections? Can collections be nested?
If no and no, is it relevant to consider that the collection is the project?

[kwag_myers]

If you put all four movies into one collection, could you link them together for each user group? My understanding of a collection is to allow you to link one movie to another to show in sequence. In a sense, each movie becomes a segment of a bigger movie. In my example, you would have to conditionally tag the links, not the movies. I'm not sure you can do that. Once you link A to be followed by B, how are you going to tell Mimic to go from A to C for the Europeans?