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add section for types and ids 

Signed-off-by: Hannah Hunter <hannahhunter@microsoft.com>
Signed-off-by: salaboy <Salaboy@gmail.com>
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Hannah Hunter 2023-05-18 14:34:06 -04:00 committed by salaboy
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daprdocs/content/en/developing-applications/building-blocks/actors/actors-overview.md
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@ -26,6 +26,17 @@ Every actor is defined as an instance of an actor type, identical to the way an
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## Actor types and IDs
To communicate with an actor, you need to know its actor _type_ and actor _id_.
- **Actor type** uniquely identifies the actor implementation across the whole application.
- **Actor ID** uniquely identifies an instance of that type.
If you don't have an actor `id` and want to communicate with a new instance, you can create a random ID. Since the random ID is a cryptographically strong identifier, the runtime will create a new actor instance when you interact with it.
[Learn more about how each Dapr SDK handles actor types, actor ids, and actor interfaces.]({{< ref sdks >}})
## Dapr actors vs. Dapr Workflow ## Dapr actors vs. Dapr Workflow
Dapr actors builds on the state management and service invocation APIs to create stateful, long running objects with identity. [Dapr Workflow]({{< ref workflow-overview.md >}}) and Dapr Actors are related, with workflows building on actors to provide a higher level of abstraction to orchestrate a set of actors, implementing common workflow patterns and managing the lifecycle of actors on your behalf. Dapr actors builds on the state management and service invocation APIs to create stateful, long running objects with identity. [Dapr Workflow]({{< ref workflow-overview.md >}}) and Dapr Actors are related, with workflows building on actors to provide a higher level of abstraction to orchestrate a set of actors, implementing common workflow patterns and managing the lifecycle of actors on your behalf.