AAOM Handbook

Quantity

For each Activity in the Operating Master Schedule where the variability in the frequency of occurrence can be significant The probability distribution for a performance parameter shall, as a minimum, be defined by; • the values of the minimum, maximum, mean and mode of the distribution, • the 'shape factor' (i.e. spread of the distribution – e.g. standard deviation),; In addition, for each such activity specify; • the actions that are possible to increase the probability of a best case outcome, • the issues that will increase the probability of a worst case outcome, and • the actions that are possible to decrease the probability of a worst case outcome. The characteristics of the probability distribution for each Activity shall be recorded in the Scheduling Model so that the Schedule impact on Asset performance and the confidence level for the achievement of performance targets can be forecast. The control actions identified to increase the probability of a better outcome shall be recorded in a system where the implementation of the actions can be managed. Quality

Time

At each forecasting cycle.

Resources

Specification of frequency distributions is the accountability of the role identified in the configured flowchart.

© McAlear Management Consultants 2006

Operational Planning: Set Operating Master Schedule

Updated: August 2018

Page 37