| ActionDefinitionReference | Represent a reference on action in a process scheme |
| ActivityDefinition | Represent an activity in a process scheme |
| ActivityExceptionsHandler | Exceptions handler for activity |
| ActivityTimeout | Timeout for set Due date |
| ActorDefinition | Represent an actor in a process scheme |
| ActorDefinitionCompare | |
| Annotation | Represent an annotation than can be attached to ActivityDefinition or TransitionDefinition |
| Assignment | Assignment (task) |
| AssignmentCreationForm | Provides a form to create a assignment |
| AssignmentFilter | Represent assignment filter |
| AssignmentManager | class for working with tasks within one process |
| BaseDefinition | Represent a base object in a process scheme |
| CodeActionDefinition | Represent a code action in a process scheme |
| CodeActionParameterDefinition | Represents a parameter for code action |
| CommandDefinition | Represent a command in a process scheme |
| CommentDefinition | |
| ConditionDefinition | Represent a transition's condition in a process scheme |
| DefaultDefinitions | |
| DesignerSettings | Represent settings used by Workflow Designer |
| DropdownValue | A name-value pair for a ParameterType.Dropdown parameter |
| DynamicParameter | Dynamic parameter, properties can be accessed two ways de["propertyName"] or (de as dynamic).propertyName Property names are case sensitive |
| DynamicParameterConverter | |
| FilterParameter | {InverseExpression} ( {Name} {ExpressionType} {Value} ) |
| Localization | |
| PagedResponse | Response with pagination |
| ParameterDefinition | Represent a parameter in a process scheme |
| ParameterDefinitionReference | Represents a named reference on a parameter in a process scheme |
| ParameterDefinitionWithValue | Represent a parameter in a process scheme with value |
| ParametersCollection | Represent a collection of process's parameters |
| ParameterTypeExtensions | |
| ProcessDefinition | Represents object model of a scheme of a process |
| ProcessInstance | Represent a instance of a specific process |
| RestrictionDefinition | Represent a transition's restiction in a process scheme |
| SchemeDefinition | Represent a not parsed process scheme |
| TagHelper | |
| TimerDefinition | Represent a timer in a process scheme |
| TransitionDefinition | Represent a transition in a process scheme |
| Translation | Represent a localization record in a process scheme |
| TriggerDefinition | Represent a transition's trigger in a process scheme |
| UnknownParameterType | |
| WorkflowRuntimeModel | |
| WorkflowTimer | |