In this paper, a due date assignment scheduling problem with precedence constraints and controllable processing times in uncertain environment is investigated, in which the basic processing time of each job is assumed to be the symmetric trapezoidal fuzzy number, and the linear resource consumption function is used.The objective is to minimize the crisp possibilistic mean (or expected) value of...

This paper considers single machine scheduling and due date assignment with setup time. The setup time is proportional to the length of the already processed jobs; that is, the setup time is past-sequence-dependent (p-s-d). It is assumed that a job's processing time depends on its position in a sequence. The objective functions include total earliness, the weighted number of tardy jobs, and the...

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This paper presents a simulation and comparison analysis conducted to investigate the due-date assignment methods through various scheduling rules. The due date assignment methods investigated are flow time due date (FTDD) and total work content (TWK) method. Three scheduling rules are integrated in the simulation for scheduling of jobs on machines. The performance of the study is evaluated bas...

Keywords: Single-machine sequencing Weighted number of tardy jobs Due date assignment a b s t r a c t The single-machine due date assignment problem with the weighted number of tardy jobs objective, (the TWNTD problem), and its generalization with resource allocation decisions and controllable job processing times have been solved in O(n 4) time by formulating and solving a series of assignment...

Traditionally, the three important manufacturing functions, which are process planning, scheduling and due-date assignment, are performed separately and sequentially. For couple of decades, hundreds of studies are done on integrated process planning and scheduling problems and numerous researches are performed on scheduling with due date assignment problem, but unfortunately the integration of ...

Although integrated process planning and scheduling (IPPS) problem is studied extensively as with due-date assignment (SWDDA) in the literature, there are only a few studies on integration of these three manufacturing functions which planning, scheduling, assignment. Since outputs upper stream effect downstream higher gives better global performance, it to integrate functions. In this study ear...

Though many of the previous studies have been devoted to internal due date assignment in a wafer fabrication factory (wafer fab), very few among them considered the allowance added to a completion time forecast. In this way, the probability of on-time delivery is only about 50%. Methods based on confidence intervals generate completion time forecasts with very wide ranges and are not practical....