“…21,22 In general, there are two main types of ALBP: (1) simple assembly line balancing problems (SALBPs) in which assembly lines are arranged as serial lines in a sequential pattern with all input parameters, without considering uncertainty 23,24 ; (2) generalized assembly line balancing problems which include all issues not addressed in SALBPs and display more constraints than SALBPs. 25 In the recent years, the extensions of ALBP have been conducted by researchers including mixed-model ALBP, 26,27 stochastic assembly line balancing with learning effects, 28 type-1 U-shaped assembly line balancing under uncertain task time, 29 two-sided ALBP, 30 reconfigurable transfer line balancing problem, 31 robotic ALBP, 32 robust ALBPs, 33 simple type-1 ALBPs, 34 flexible multimanned ALBP, 35 cost-oriented resource-constrained multimodel ALBP, 36 multimanned ALPB with skilled workers, 37 and disassembly line balancing problem. 38 Published literature shows that the scope of the ALBP in research is indeed quite clear, with well-defined sets of assumptions, parameters, and objective functions.…”