When to use ADF Caching and/or Coherence?

Looking for a high level answer to this question... basically what is best practice?
Given that I've found virtually nothing that mentions these two items in the same breath, I'm wondering if the question is even applicable!
If there is overlap, at what point do you "move" to Coherence.
Presumably the two are not mutually exclusive either?
Any experience of this? Problems or wins perhaps?
Thx
.Stuart

Hi Henry,
Whether you want the file to be on the presentation server or on the application server is a choice that you have to make.
If your SAP system is linked to some other system and that system sends data to the SAP system in a file format, then it would be FTPed to the application Server of your SAP system.
This is one common scenario.
If you put the file on the presentation server, then the program which accesses the file cannot be run without a user sitting in front of the screen, logged on to the SAP system. this means that a file on the presentation server cannot be processed in background.
Application server is also preferred in case the data in the file is huge. If such a file is loaded from the presenation server, then it may take a long time to get uploaded and then it has to be processed. This may lead to time-outs in many cases. If the file is on the application server, then since you can process it in background, you will never have the problem of the progrma timing out.
Also, having a file on the presentation server leads to the assumption (and not a totally untrue one at that) that the data in the file is actually user-specific. At least it is (certainly) determined by the user.
Hope the point is clear. If not, get back.
Regards,
Anand Mandalika.

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Could any of you please let me know the detailed approach when the used Live cache data area crosses the threshold in APO system?
The approach I have as of now is :
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''Duplicate post, continue here - [https://support.mozilla.com/en-US/questions/828024]''
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When to use ADF Caching and/or Coherence?

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