Six Sigma is an elite, statistical-based methodology that seeks to eliminate defects and reduce variability in processes, thereby enhancing overall business performance and customer satisfaction. The methodology focuses on the use of empirical and statistical techniques to drive process improvement. The application of Six Sigma can be complex and often requires the expertise of trained professionals known as Six Sigma Consultants. These consultants are highly skilled individuals who possess a thorough understanding of the Six Sigma approach and its application to various business scenarios.

Given the critical role that Six Sigma consultants play, it becomes imperative to ensure that you are engaging with the right consultant for your business needs. This decision requires careful consideration and due diligence. Here, we delve into four core questions you should pose to a potential Six Sigma Consultant.

• What level of Six Sigma Certification do you hold?

  The level of certification held by a consultant serves as an indicator of their proficiency in Six Sigma methodologies. Typically, there are various levels of certification: Yellow Belt, Green Belt, Black Belt, and Master Black Belt. Each level represents a different degree of understanding and experience with the Six Sigma methodology. A Master Black Belt, for instance, has extensive knowledge and experience in leading complex projects. The appropriate certification level would largely depend on your business needs and the complexity of the projects you intend to undertake.

• Can you provide references of past clients and projects?

  Asking for references allows one to verify the consultant's experience and effectiveness in delivering results. It also provides insights into their ability to adapt and apply the Six Sigma methodology across various business contexts. In addition, it provides an opportunity to gauge the consultant's problem-solving skills, communication, and overall project management capabilities.

• How do you ensure the sustainability of improvements?

  In the realm of Six Sigma, a critical element is the concept of control, geared towards maintaining the gains achieved through process improvement. This involves the implementation of effective control systems, training of personnel, and establishing a culture of continuous improvement. It is therefore essential that your consultant has a robust plan to ensure the sustainability of improvements.

• How do you integrate Six Sigma with existing business processes?

  A key challenge faced by many organizations implementing Six Sigma is the integration of the methodology with existing business processes. Six Sigma should not be viewed as a standalone initiative but should be seamlessly embedded within the organization's business processes. Hence, it's pivotal that the consultant is able to demonstrate how they can integrate Six Sigma into your existing business model effectively.

In conclusion, engaging a Six Sigma consultant is an investment that could yield significant returns, if done correctly. Therefore, as you embark on this journey, ensure that you equip yourself with the right questions to ask, as this will increase your likelihood of selecting a consultant that aligns with your business needs and objectives. Remember, the ultimate aim of Six Sigma is to drive customer satisfaction by delivering superior quality and this should be the driving force of any Six Sigma consultant you engage with.