NTFS authorization means that access (permissions) to QlikView documents are managed by way of NTFS rights. The main consequence towards QlikView users is that a user should exist in AD or you cannot assign NTFS rights.
DMS authorization means that QlikView itself will manage access & permissions to QlikView documents. This has a big impact with respect to what you are now able to do for QlikView users:
- Document rights can be assigned in the QMC (you cannot do that with NTFS authorization)
- Also non-AD users can be granted access to QlikView documents (for example Custom Directory users)
- Document permissions are more fine-grained and integrated in the QlikView Management procedures.
NTFS - Windows will manage the users, If you see the properties of the application which is deployed you can find the users list.
DMS - Qlikview will control the file, In this method once the application is deployed we have to manually add the users under user documents --> Applicaiton --> authorization. in this Qlikview will keep the list of users which is stored in .meta file.
Authorization tab will be enabled only in DMS authorization.
if you are using enterprise edition then after enabling DMS mode you don't need to worry whether user is added in local folder security , it will be taken care.
Using DMS is good option , you just need to take care of user documents --> Applicaiton --> authorization and don't need to worry about local folder access