carfax & porsche terminology

[oc-boxster]

i was reviewing the car fax report on my 02S and noticed at right around 60,000 miles the car was at a porsche dealer where "recommended maintenance" was performed and "engine/powertrain computer/module checked" i know the actual work performed varies specific to the car and im assuming there was an oil/filter change as well as air/cabin filter change, but what else is typically checked/changed at this interval? im really just interested in the spark plugs mostly i have no idea if they have been changed