Model in HANA Studio or IDT

Hello Everyone,
We have a question on a scenerio/approach:
1. We have HANA and have SLT table replication
2. Do we model in HANA (with Calculation Views, Analytic Views, Attribute Views) Studio or model the relationship model directly in Information Design Tool?
We see all HANA documentation states Calculation/Analytic/Attribute views and mentions only IDT for creating the Universe. We don't see anywhere that you should create the model itself in HANA Studio or IDT. Is there a preferred approach/Best Practice?
Thank You!

Not very sure, what was the scenario that led BI expert author to that conclusion. Hope it was not one of those manufacutred lab scenarios.
Based on my past couple of projects on HANA, I know this for a fact by default Analytic View runs faster than physical tables. Client have always come up with same question and we have performed tests to get the right results. You can do this simple test, run SQL statement on both and monitor "core" status on your HANA box. You can see in case of SQL, only 1 core get utilized and in case of Analytic Views all cores utilization will go up.
Also on article key concept it says "SAP HANA Studio is the primary client tool used to manage SAP HANA and to create analytic views" which is not true. "SAP HANA Studio is the primary client tool used to manage SAP HANA and to create DATA MODELS (which can be attribute view, analytic view, Calculation View)

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It doesn't matter if you use the Systems View or the Project Explorer; the content is stored the same place/way on the server. When you save/commit in either tool the content is always stored in the HANA Repository. The HANA Repository is just a set of database tables (_SYS_REPO schema).
>Before activation and after?
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You have to keep in mind that the Systems view was created before we really had a developer perspective in HANA Studio. It was design with Information Modeling (view creation) only in mind. Therefore in SPS05 when we added the developer perspective and many of the new development artifacts we introduced the repository and project explorer view. When you create a package via either tool - they are the same thing. However if you want to then work with a project or any of the newer development artifacts you must check out the project from the repository view and edit the objects via the project explorer.
>Is it also possible to check (resp. compare) if something in a folder structure was changed?
Changed by someone else after you checked it out? If so, you usually would just do another check out from the project. Otherwise you will find any conflicts when you activate.
>In SPS08 the project is automatically connected with the Team and I don't have to do anything further, like Share. Correct?
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>Does this mean, the files are automatically synced?
They are automatically committed upon any create or save operation. Originally in SPS05 you had to always choose to commit via a context menu. To improve the user experience we changed this to automatic. The manual commit menu option is still there (team->commit from the right mouse context menu). However it is really only needed if something goes wrong with the communication to the server or if you were developing offline and then want to force sync with the server at a later time.
>Since in the connection no specifics reg. server, port is provided I wonder how the magic is done
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Model in HANA Studio or IDT

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