This paper focuses on the flow shop sequence dependent group scheduling (FSDGS) problem with minimisation of total completion time as the criterion (Fm|f<SUB align="right"><SMALL>mls</SMALL></SUB>, prmu, S<SUB align="right"><SMALL>plk</SMALL></SUB>|ΣC<SUB align="right"><SMALL>J</SMALL></SUB>). The research problem is formulated in form of two different mixed integer linear programming (MILP) models. Comparing...</small></sub></small></sub></small></sub>