Report sources are predefined data sets for creating reports.
Use report sources for reports containing the same conditions, so you do not have to define the conditions more than once. You can also use report sources to implement the same definitions across your organization.
A report source always consists of a table and a number of conditions. When you create a new report, you can either use a report source or select a table. Some examples of report sources are open incidents, closed problems, and so on.
Report Source
Indicator sources define filtered sets of records from a facts table to evaluate when collecting indicator scores
Indicator Source
Overall, report source is used to fetch data in report and indicator source is used in performance analytics indicators.
Indicators are used in performance analytics dashboards.
Regards,
Sachin
