# Guide to OpenIG
2.2. How It Works In Detail

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### 2.2.5. Handlers

The final processing of every Chain ends in a call to a Handler. A Handler can simply call another Chain or it can send the request on to the target application. The following Handlers are shipped with OpenIG:

- ClientHandler: Sends the final request to the target application.

- StaticResponseHandler: Used to send a response, such as a redirect, to a client during request processing.

- SequenceHandler: Links together multiple handlers or chains during request processing.