RADIX Optimising Model

This page is part of a set of pages: "Core Practice RADIX Framework"
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There are (at least) two possible optimising models: the Deming Cycle, and the CMM Common Features Categories (ref 0.11.22).

The CMM grouped its Key Practices (equivalent to CP Practices) into Common Features, which had five categories (ref  0.11.21):

Commitment to Perform

The key practices in the Commitment to Perform common feature describe the actions the organization must take to ensure that the process is established and will endure. They typically involve establishing organizational policies and leadership.

Ability to Perform

The key practices in the Ability to Perform common feature describe the preconditions in the services or organization necessary to implement the service process competently. They typically involve resources, organizational structures, and training.

Activities Performed

The key practices in the Activities Performed common feature describe the activities, roles, and procedures necessary to implement a key process area. They typically involve establishing plans and procedures, performing the work, tracking it, and taking corrective actions as necessary.

Measurement and Analysis

The key practices in the Measurement and Analysis common feature describe basic measurement practices that are necessary to determine status related to the process. Measurements included in this common feature are used to control and improve the process.

Verifying Implementation

The key practices in the Verifying Implementation common feature describe the steps to ensure that the activities are performed in compliance with the process that has been established. They generally include key practices that relate to oversight by senior management and service management, as well as specific verification activities that the service quality assurance group or others are expected to perform to verify that the process is being performed properly.

While not positioned as an Optimisation Cycle, these categories naturally fall into one. But that is not why they are used in Core Practice: they are there as another dimension for measuring maturity  (see Maturity Model) and assessing balance of Practices (does a Process have some of each category).

The Deming Cycle (see figure) is well documented and widely used, including in ITIL.  It is also known as the Shewart Cycle . Deming cycle



 According to Wikipedia “The philosophy is to keep improving the quality of an organization. It is defined by four keys:

“Plan: Design or revise business process components to improve results
“Do: Implement the plan and measure its performance
“Check: Assess the measurements and report the results to decision makers
“Act: Decide on [or better still make] changes needed to improve the process”

We have identified the need for consideration to be given to immediate action before any planning, so we add an Emergency phase to the Deming Cycle. In some organisations, they are “bleeding”. Immediate “First Aid” is required, i.e. stopping the situation getting any worse, and stabilising the patient.

To use another analogy, there is a well known saying: “When you are up to your butt in alligators, it's not the time to talk about draining the swamp” or many variations thereon. The Emergency phase is about stopping any more alligators getting in, i.e. preventing new problems before we start addressing the existing ones. We also use this analogy elsewhere in Core Practice when we refer to a Practice in the Problem Process as the “alligator killer”: someone who seeks out problems and fixes them.

This Emergency phase is performed only before the first iteration of the cycle, so the RADIX Modified Deming Cycle looks like Figure 5. The chosen Optimising Model for Core Practice is this RADIX Modified Deming Cycle.

RADIX modified Deming Cycle



This page is part of a set of pages: "Core Practice RADIX Framework"
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