Development
The Simulation Methods Developer can edit a attribute group only in
the Development state. The owner has complete access to an attribute
group in the Development state.
Once all the needed attributes have been defined, the simulation attribute
group can be promoted to the Released state.
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Released
The Simulation Analyst can create simulations and simulation activities
using an attribute group only when the attribute group is in the Released
state.
You cannot demote a simulation attribute group to the Development
state if it is used by a simulation, simulation activity, or template.