AAOM Handbook

Operating Master Schedule / Expenditure Schedule

Accumulation Rates

Rate of change of a counter (hour meter, tonnes, etc) used to forecast the timing of an OMS Activity.

Activity

A single line within the OMS that represents either; • a single Work Package - for the most significant elements of the OMS, or • a grouping - to represent the many minor Work Packages in a meaningful way within the OMS.

Direct Resource Types

Those resources that have significant contribution to the cost of individual Production or Service work packages. The cost of these resources can be accurately forecast and recorded for individual work packages via the quantity and value of the units of Resource Type.

Expenditure Schedule (EPS)

The EPS adds the resourcing and their forecast costs to the OMS. It provides a forecast of the resource demand and cash flow over the Forecasting Period.

Forecasting Interval

The smallest increment that a schedule is broken into (e.g. weeks)

Forecasting Period

The period of time into the future – that a schedule will forecast (e.g. 5 years).

Operating Master Schedule (OMS)

The OMS identifies the nature, timing and frequency of Activities over the Forecasting Period. It should be used as the roadmap to the achievement of the Performance Targets, ie the Work Management process should ain to stay close to, or converge back onto the approved OMS. All Production and Service work is included in the OMS, either as individual Activities for the most significant work, or as grouped activities for the many minor work items.

© McAlear Management Consultants 2004

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