A Capture Action is the action which creates Source Information.  Put another way, a Capture Action injects new information into an Information Supply Chain.

By definition, it marks the start point of an Information Supply Chain and can therefore only have outbound information.

A Capture Action can be performed by a

person or automated by a System.  An example of the former is a person typing information into a form;  an example of the latter is an automatic weather station gathering meteorological information.