A method, and corresponding computer program product and system, defines
and uses marker points within a modeled manufacturing process routing
that includes multiple sequenced operations. The method includes
receiving user input that defines one or more marker points within the
modeled manufacturing process routing and between sequential ones of the
operations. The marker points define a user-defined point within a
manufacturing process and include one of multiple defined types that each
define a different use to be made by the marker point. The method also
includes detecting if any marker points of a specified one of the defined
types have been defined in the manufacturing process routing. If a marker
point having the specified one of the defined types is detected, a
predefined computing function is executed that uses the detected marker
point.