This reader is meant to be used in support of the slides presented on Day2, not in lieu of.
The states of processes
Recap of Day 1 - The Process Behavior Chart
Filters the noise of routine variation
Helps predict the future behavior of the process
Defines the Voice of the Process (Average and Limits)
Strikes a balance between two mistakes:
Interpreting noise as if it were a signal
Failing to detect a signal when it is present
Informs about what to expect from a process
Helps you ask the interesting and important questions
Helps identify the priorities
The State of processes
Knowing that a process will produce results predictably is very important because it can be relied upon to plan and manage the business.
However, it can also produce predictably results that have too large an amount of variation or are at a level of performance that users, either internal or external might find unsatisfactory.
A process needs to satisfy the requirements of its users or customers.
A process is deemed Capable when it delivers what is wanted from it.
The “Voice of the Customer” represents the requirements.
The ability of a process to meet the requirements is called its Capability.
Predictability and Capability are the two dimensions that a process can possess.
The predictability is determined by the “Voice of the process”.
The Voice of the Process defines you will get from a process
The Voice of the Customer defines what you want from a process.
A process can be either Predictable (P) or Non Predictable (NP). It can also be either Capable(C) or Non Capable (NC ). The combination of these two characteristics -Predictability and Capability defines the four possible conditions that the process might display and only four.
These conditions were coined as “states” of a process by Wheeler.
They are P-C, P-NC, NP-C, and NP-NC. Wheeler gave them some suggestive names respectively, Ideal, Marginal, Brink of Chaos and Chaos.
Dingbats names