wording

scheduling.tex

@@ -219,7 +219,7 @@ This is a general concept with which we try to handle quality assessments of dif
 Some objectives are better when they are maximized, some are better when they are minimized.
 An objective is therefore a number together with a tag \emph{maximize} or \emph{minimize} which indicates how to compare two objectives of this type.
 Quality functions are not the only source of objectives in a C2 scheduling problem.
-Another objective is the makespan, which is the overall time from the start of the work to the end.
+Another objective is the makespan, which is the overall time from the start of the first task to the end of the last task.
 The makespan should be minimized.
 
 Every problem instance brings its own quality function.