The 5 principles of Lean Six Sigma are:
1. Define Value
Lean Six Sigma defines ‘value’ as anything a customer is willing to pay for. To maximize the value of a single product, an organisation must take the time to discover our client’s needs.
Often, customers do not fully understand what they want from a service or product. This is especially common when it comes to software and new technology.
It is the job of industry experts to explore the full potential of a product or service and create an optimal solution by gathering data through interviews, surveys, and other methods.
2. Map the Value Stream
Mapping the value stream means using the customers’ idea of ‘value’ as an end-goal, and then working backwards to identify each step that must be completed to reach this goal. This information should be displayed visually so that everyone involved can easily understand the work involved.
As the value stream is mapped, it can be used to identify those processes that aren’t useful or do not add value, thereby eliminating them which leads to a reduction in waste.
Accurate mapping of the value stream helps to reduce costs, improves the speed of development, and ultimately provides a cost-effective and timely solution to a problem.
3. Map the flow
Once the value stream has been mapped and each step outlined, it must be decided what resources are required at each step.
Planning in advance can help reveal potential risks and inefficiencies. Production steps can be reconfigured to prevent bottlenecks. If necessary, cross-functional teams can be created to share the workload.
4. Establish Pull
A pull-based system limits work in process (WIP), ensuring that products are created only when needed and in the exact quantities required.
In a pull system, the tasks that must be completed are stored in a queue. Developers who are not currently occupied will go to the queue and take the item with the highest priority that they are able to complete.
5.Pursue Perfection
A large part of Lean Six Sigma focuses on imbedding the idea of continuous process improvement in organisational culture. Staff must always strive to improve the way they work.
To do this, organisations must create an environment of learning, communication, and collaboration that facilitates continuous improvement and the pursuit of perfection.