What is the diffrence between PersistanceHelper vs PersistanceServerHelper ?

Hi All,

Can you please expalin the diffrence between "PersistanceHelper" and "PersistanceServerHelper" ?

and how these classes helps to modify/store object in Windchill , what exactly happens behind, how it make changes in database ?

13-Aquamarine

PersistenceServerHelper

This class implements helper methods for server side PersistenceManagerSvr operations. It is running in the Method Server.
The methods of PersistenceManagerSvr provide low level access to the database and bypassed access control operations.
PersistenceHelper
The class contains utility methods associated with the PersistenceManager. It is running in client application.
The methods of PersistenceManager use access control to determine if the user is allowed to operate the business object.

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