Six Sigma mostly finds application in large organizations.  An important factor in the spread of Six Sigma was GE's 1998 announcement of $350 million in savings thanks to Six Sigma, a figure that later grew to more than $1 billion.  According to industry consultants like Thomas Pyzdek and John Kullmann, companies with fewer than 500 employees are less suited to Six Sigma implementation or need to adapt the standard approach to make it work for them.  Six Sigma however contains a large number of tools and techniques that work well in small to mid-size organizations. The fact that an organization is not big enough to be able to afford Black Belts does not diminish its abilities to make improvements using this set of tools and techniques. The infrastructure described as necessary to support Six Sigma is a result of the size of the organization rather than a requirement of Six Sigma itself. 
Quality and Product Reliability Management:
– Quality management leads the organization to achieve the desired level of Quality planning, Quality control, Quality assurance, and Quality improvement by assuring the product or service is defined, implemented and consistent.
– Product Reliability developing environmental, electrical, and mechanical tests to assure the products meet the desired requirements.
Total Life Cycle Management:
-Include Migration, Maintainability, Serviceability, and End of Life Requirements, during Front End Planning of Projects.
– Passionately plan synergetic RoadMaps that include Innovation.
Project plans are another requirement for strong project management. There is nothing within the business improvement frameworks that asks specifically for a project plan. Do you follow a planned method of working through the process improvement, especially when using Six Sigma, yes you do. And do you define how long you believe each part of the DMAIC process is going to take, yes you do. And do you get your process stages signed off, before you move to the next stage, again, yes you do. But if you were to ask a Six Sigma Black Belt for what a PM would expect to see as a ‘project plan’ he/she will tell you that they don’t have one.