There are various device management protocols in the market. But I doubt is there any of these protocol work well with all kind of requirements or as per the documentation of these device management protocols. For e.g. how many companies have fully implemented OMA DM protocol to satisfy their full requirement? I have a doubt whether is it possible to implement all these exactly as per the documentation. I know the requirements gets changed based on the devices used. But why they make it very complex. Why the concept of URN and all is used to make it complex instead of we could easily query it? We still had to hard code the URN and that's a tedious job.. What else could be the possible way to make automatically map the URN with the sql query? Please share your thoughts and views regarding DM protocols. Thank You