General Principles of Web Service Organization

All web service operations by their functions can be divided into four groups:

Operations for opening an object instance
These operations have the Open prefix in their name. The operations are executed when the work with an object is started. The operations result in the opened object instance moniker. This moniker is further used to get access to object data and metadata. A pattern can be specified for operations that can be used to get all required data or metadata on opening.
Operations for getting data or metadata
These operations have the Get prefix in their name. These operations are executed for the opened instance of the object and enable the user to get its data or metadata. Specify the pattern for operations, which enables the user to get only necessary data or metadata.
Operations for changing data or metadata
These operations have the Set prefix in their name. These operations are executed for the opened instance of the object and enable the user to change its data or metadata. To execute the operation, specify a pattern that determines what exactly changes and also the new data or metadata.
Operations for closing object instances
These operations have the Close prefix in their name. These operations are used to close the object instances and release the server resources spent on working with objects.

To execute basic operations on objects (creating, deleting, and so on), there is a series of operations: