Where work objects will be stored?

Work Objects are stored in pc_work table by default. however if you want to store the work objects in a user created table, follow the below mentioned steps.
Create a schema similar to pc_work table. (The best thing is to copy the pc_work schema and modify the table name and constraints name if any)
Change the class group mapping (Data-Admin-DB-Table) to the newly created table.

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Difference between Spinoff, Split join and Split for each

Split Join - Use the Split-Join shape to require that multiple subflows of your flow be completed before the current flow continues execution. This allows subflows to execute asynchronously, in parallel. For an example, see the standard flow Work-.ParallelWork. Split For Each - The Split-ForEach task provides a form of searching or enumeration over the pages in a property. Use a Split-ForEach shape to iterate over the pages of a Page List or Page Group property. For each page, you can conditionally start a flow execution for the work object. Spinoff- When a work object advancing through a flow reaches the Spin-off shape, Process Commander starts execution of a different flow, using the current or a different work object. Processing in the current flow rule continues in parallel, without waiting for the other flow to complete.

What is a Workbasket, Work pool and Workgroup

Work Basket is an instance of Assign-Workbasket. It is Queue of All the work Items those can be accessed by Multiple Operators who are connected to the basket via their Work Group. Work Group Acts an Interface between Operator and Work Basket. Work Group and Work Basket can be connected to each other. Work pool :- Class Group when added in the access group (Under Advanced Tab) it is said to be work pool. It Identifies which case types should be loaded for an operator to create work.

Difference between Backward chaining and forward chaining

· Forward Chaining: It provides the automatic calculations of the property value by executing the declarative rule, when any one of the input property value is changed. EX: If the Area property depends on the Length and Width property, then forward chaining causes the Area property recomputed each time either Length/Width value changes. · Backward Chaining: It provides the automatic calculations of a property value by executing the declarative rule, when a value is needed for property rather than whenever inputs change. EX: If the Area property depends on the Length and Width property, then backward chaining causes the Area property recomputed each time the Area property is required.

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