Digitization strengthens execution integrity in Bangladesh RMG: PRISMA review integrating Lean Six Sigma, TOC, and CEP

Bangladesh RMG costs, lead-time pressure, digital-lean gains cannot be maintained unless adopted daily. The evidence-based systematic literature review is the synthesis of evidence that could enable to comprehend how Lean Six Sigma, and Theory of Constraints respond to the digitization processes to provide the improvement of the performance of operations in the environments that fall within the scope of the analysis in the RMG. It was performed in a PRISMA-based methodology. The synthesis is finalized by adding nine articles that are synergistic when it comes to (i) improvement routines and outcomes, (ii) digitization mechanisms such as alignment of ERP/ manufacturing execution systems and visibility of operations, (iii) critical success factors such as leadership, training, and measurement discipline. The key theoretical contribution of the review is that the concept of execution integrity which refers to the degree that the intentions of improvement are transformed into realistic everyday behavior backed up by shared operational information and binding control policies. After synthesis, the paper gives a conceptual framework of CEP, which advances digitization to the next position of execution ability layer (interoperability, data integrity, visibility, analytics readiness) that strengthens the execution integrity and optimizes the effects (lead time, defects, throughput, delivery reliability and compliance traceability).