This paper presents an analytical model for determining the optimal processingtime and number of operations multiples for the TWK and TWK + NOP duedate wignment methods in a dynamic job shop subject to restrictive assumptions on queue discipline and processing time distribution. The analytical results are compared with the experimental results obtained from simulation of a hypothetical job shop under various shop conditions. The close agreemeht of the results reveals the validity of the analytical model. In addition, the msults show that the TWK + NOP methbd is more effective in minimizing the missed due-date cost in a job shop.
ASJC Scopus subject areas
- Strategy and Management
- Management Science and Operations Research
- Industrial and Manufacturing Engineering