To further facilitate the operation of {HEAD ~ the programmer}, {TAIL ~ means} are provided to record all actions of an operator, whether this concerns the selection of objects on the display, the execution of a tests function or the modification of a parameter value 
To further facilitate the operation of { HEAD ~ the programmer } , { TAIL ~ means } are provided to record all actions of an operator , whether this concerns the selection of objects on the display , the execution of a tests function or the modification of a parameter value
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH