Understanding the Geoprocessor Programming Model part 1

Understanding the Geoprocessor Programming Model part 1: "A ques­tion often asked when peo­ple ven­ture into the won­der­ful world of Python Geoprocessing with ESRI is how one can read the pro­gram­ming model they make avail­able on their web­site. As it may not be eas­ily inter­preted when one begins pro­gram­ming, I will do my best to unpack it and explain how one can use it more effec­tively. All images pre­sented here are extracts from the actual model pre­sented by ESRI on their website."