Which option is NOT one of the key techniques for improving a business transactional process?

The option that is NOT one of the key techniques for improving a business transactional process is the choice involving the implementation of the Current Value Stream map. This method is primarily used in Lean Management to visualize and analyze the flow of materials and information required to bring a product or service to the consumer.

While it has significant value in identifying opportunities for waste reduction and streamlining processes, it is not specifically categorized as a direct technique for improving transactional processes within the Six Sigma framework. In contrast, eliminating redundancy in reviews and approvals, removing non-essential processing, and completing a Value Added Analysis are all directly aimed at enhancing efficiency and effectiveness in business transactions. These approaches focus on streamlining operations, increasing value, and reducing inefficiencies, which are core principles in the Six Sigma methodology for process improvement.