- The **Jetty back end** contains all the logic for the SDC.
-SDC uses two storage components: Elastic Search(ES) and Cassandra
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-- **Elastic Search** is used to index the auditing data received from different operations in the SDC.
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- This information can then be analyzed with Kibana. The **Kibana server** enables statistical analysis of the operations done, according to the business logic.
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- **Cassandra** is used to store audit data, artifacts and data model objects.