Two scheduling problems with fuzzy due-dates

Abstract Up to now, almost all of papers on scheduling problems assume that due-dates are fixed and none treats fuzzy due-dates as far as we know. But in some situations due-dates are not rigid and some violations may be accepted. Considering these cases, this paper investigates scheduling problems with fuzzy due-dates, that is, a generalized two machine open shop scheduling problem with fuzzy due-dates and an identical machine scheduling problem with fuzzy due-dates.