Connector is a piece of software to connect to a specific system or standard interface. For example, Frends includes SFTP connector that implements the SFTP standard. Frends includes also SAP connector that is embeds the complexity of SAP interfaces thus making the integration development easier. Connector are commonly compiled to the result integration where as Adapters are indepent programs hosting connector. The end result is the same, but using Connectors is almost every time a faster solution.