Types of Sources

Normally Data Source is a point of Origin from where we can expect data .it might be from any Point. Inside System Outside System.

Entity-Backed: if the Data For this Record Comes Directly from a Database Table or View i.e. a database entity.

Normally view is seen by Appian as just another database table i.e. tables and views are both classed as entities. You can create an Appian record (or Datastore Entity) from an existing database view in the same way you can for any other database table.x

Process-Backed: If the data from these Comes from Process instances in your Appian Application environment. (Normally You will Find Useful Information Regarding the processes where processQueryAnalytics Plays a vital role in Displaying Gathered Data in the Form we Need To perform Necessary Action). We have covered the Ways to Make Use of Process-backed Records and How to Make Use of processTaskLink Here.

Service-Backed: When our Data Comes From Outside the System Whether it Be any Source eg Any Other Database Table, Web Services. Normally Modern Systems Communicate with REST API but we also have Different Ways to Communicate Such as SOAP, WSDL, etc.

Salesforce-Backed: Appian lets you bring external data from Salesforce into a record type using a connected system. This data can be used as the source for your record type.