AAOM Handbook

A scheduling commencement date shall be specified for each Operating Master Schedule Activity that will be activated as the result of a change in Production or Service Strategy. Each Scheduling Model Activity shall record the following identifying data; • the Business Structure identifier for the Activity (the identifier shall allow filtering of activities at any level of the structure), • the role accountable for the Activity, • the Activity description, and • the Work Management System Standard Job number for the Activity. Each Scheduling Model Activity shall record the following scheduling data, where appropriate; • trigger parameter, • trigger parameter start value (to identify where in the life cycle of an activity the forecast commences), • trigger value (the point at which the activity is scheduled), • trigger tolerance (earliest and latest schedule points around the trigger value), • constraints on scheduling (e.g. operating, down, full, empty, access), • scheduling commencement date (for activities that will only commence active scheduling at some time after the forecast commences), and • scheduling termination date (for activities that will only cease active scheduling at some time after the forecast commences).

Each Scheduling Model Activity shall record the following performance data, where appropriate; • Work Package duration,

• utilisation, • availability, • operating rate, • quality rate, • efficiency.

To cater for the situations where variability in a parameter will be significant in determining the confidence of meeting performance targets for a process, the model must allow a probability distribution to be entered for the parameter. 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 cases where the variability in the parameter will not be significant in determining the confidence of meeting performance targets the model shall use a mean value only. Each Scheduling Model Activity shall specify the following resource data; • labour, • materials, and

© McAlear Management Consultants 2006

Operational Planning: Set Operating Master Schedule

Updated: August 2018

Page 18