In the field of scheduling, the flowshop problems have been thoroughly studied over the last six decades. In this paper we propose a concise overview of flowshop scheduling techniques evolved during this period. We surveyed the exact, heuristics and metaheuristics methods for solving various flowshop scheduling problems. As a result various optimization techniques, solution procedures are avail...

The most general flowshop scheduling problem is also addressed in the literature as nonpermutation flowshop (NPFS). Current processors are able to cope with the (n!) m combinatorial complexity of non-permutation flowshop scheduling by metaheuristics. After briefly discussing the requirements for a manufacturing layout to be designed and modeled as non-permutation flowshop, a disjunctive graph (...

The proposed hybrid stage shop scheduling (HSSS) model, inspired from a real case in the high-fashion industry, aims to fully exploit the potential of parallel resources, splitting and overlapping concurrent operations among teams of multifunctional machines and operators on the same job. The HSSS formally extends mixed shop scheduling (a combination of flowshop and open shop), which is able to...

Scheduling in a permutation flowshop refers to processing of jobs set available machines the same order. Among several possible performance characteristics flowshop, makespan remains one highest preferred metrics by researchers past six decades. The constructive heuristic proposed Nawaz-Enscore-Ham (NEH) is best for minimization. essentially depends on initial ordering according particular prio...

Solving a new multi-objective hybrid flexible flowshop problem with limited waiting times and machinesequence-dependent set-up time constraints S.F. Attar a , M. Mohammadi a , R. Tavakkoli-Moghaddam b & S. Yaghoubi c a Department of Industrial Engineering, Faculty of Engineering , Kharazmi University , Karaj , Iran b Department of Industrial Engineering, College of Engineering and Center of Exc...

Among the potential road maps to sustainable production, efficient manufacturing scheduling is a promising direction. This paper addresses lack of knowledge in theory by introducing generalized flexible flow shop model with unrelated parallel machines each stage. A mixed-integer programming formulation proposed for such model, solved two-phase genetic algorithm (GA), tackling job sequencing and...

The assembly flowshop scheduling problem has been studied recently due to its applicability in real life scheduling problems. It arises when various fabrication operations are performed concurrently in one stage. It was firstly introduced by Lee et al. (1993) in a flowshop environment. Later, Potts et al. (1995) considered the two-stage assembly flowshop problem with m concurrent operations in ...

A flow line is a conventional manufacturing system where all jobs must be processed on all machines with the same operation sequence. Line buffers allow non-permutation flowshop scheduling (NPFS) and job sequences to be changed on different machines. A mixed-integer linear programming model for non-permutation flowshop scheduling and the buffer requirement along with manufacturing implication i...