While almost all existing works which optimally solve just-in-time scheduling problems propose dedicated algorithmic approaches, we in this work mixed integer formulations. We consider a single machine problem that aims at minimizing the weighted sum of earliness–tardiness penalties around common due date. Using natural variables, provide one compact formulation for unrestrictive case and, gene...

Nowadays many industry consider an interval time as a due date instead of precise points in time. In this study, the hybrid flow shop scheduling problem with basic blocking constraint is tackled. Where jobs, if done within window, are deemed on Therefore, criterion to minimize sum weighted earliness and tardiness. This variant flowshop not investigated best our knowledge. we introduced new meta...

the problem of determining the sequence of a set of jobs with the objective function of minimizing the maximum earliness and tardiness in one machine is studied. production systems like jit are one of the many applications of the problem. this problem is studied in special cases and their optimal solutions are introduced with simple orders. in general, some effective conditions for neighboring ...

Production scheduling is one of the very important problems that industry and production are confronted with it. Production scheduling is often planned in the industrial environments while productivity in production can improve significantly the expansion of simultaneous optimization of the scheduling plan. Production scheduling and production are two areas that have attracted much attention in...