Connectors get data into and send data out of processes. They enable communication with the applications or data sources between which data needs to move, or in other words, the "end points" of the process. Those applications and data sources can range from traditional on-premise applications like SAP and QuickBooks, to web-based applications like Salesforce.com and NetSuite, to data repositories like an FTP directory, a commercial database or even an email server.
Connectors differ from APIs (application programming interfaces) in that an API works like an electrical socket: until something is plugged into it, an API just sits there. Dell Boomi
AtomSphere integration connectors work like plugs. The connectors plug into an API to abstract the technical details of the API as well as the transportation protocols used to communicate with various applications and data sources. This allows you to focus on the business data and logic of the integration.
A connector is a combination of two components: a connection and an operation. The connection is the where and the operation is the how. These components determine the type of data source, how to physically connect to it, and the type of data records to exchange.Every process begins with a Start shape, which gets data, and typically ends with one or more connectors that send data. Many processes need only two connectors: one to get data from the source and another to send it to the destination. However, you may need additional connectors depending on your integration requirements, such as sending data to multiple destinations or sending email notifications.
Connectors are also used in the middle of the process when the integration needs to connect to a data source, such as performing a look-up, a cross-reference, or arbitrary database statements in a Decision shape, Program Command shape, or map function.
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