| IApprovalProvider | |
| IAssignmentProvider | Interface of a assignment provider, which provide storing assignments |
| IPersistenceProvider | Interface of a persistence provider, which provide storing of process's instance specific parameters and global parameters |
| IProcessInstanceTreeItem | |
| IRuntimePersistence | Provides save and load of workflow runtime parameters. as timers etc |
| ISchemePersistenceProvider | Interface of a persistence provider, which provide storing of schemes |
| IWorkflowProvider | An interface of a workflow provider wich combines IPersistenceProvider, OptimaJet.Workflow.Core.Persistence.ISchemePersistenceProvider%601, and OptimaJet.Workflow.Core.Generator.IWorkflowGenerator%601 |