Re: Where can I find the data conceptual model of tiki ?
Well, I doubt one exists.....
If you looked at my last post asking why such a system needs 200+ queries, and so long to generate a page, then you will understand. i haven't had a reply from a developer explaining exactly what each query does in a page request.
from this I conclude that Tiki is a project with more Spaghetti than a Spaghetti factory. The fact that no model of Tiki exists further backs up the fact that Tiki's Spaghetti is a result of a lack of planning. It would be safe to say the all 390 or so developers on the project have come from a self taught background, and therefore as a result have no idea about formal programming techniques, and no idea about working in commericial project with a team. As a result most lack an understanding about development cycles. Tiki developers know how to write code (though it's more Spaghetti from what I can read), but they lack the ablity to formally look at the requirements of a problem, look into ways of solving that problem, agreing on a design plan and using a formal plan made using UML or anything like that. As a result, they also lack the ablity to evaluate, and ensure code has been optimised.
If they did, then the system would not need 140-260 queries per a page, and not be so slow.
Forget it, there will be no design plan. There might be 390 developers in this project, and it might be doing well. However as far as I see it, they all seem to be working independantly from each other, otherwise the code would not look like Spaghetti.