AAOM Handbook

INTERNAL

 The data sampling/measurement frequency, based on the rate of variation that is likely for the variable to be measured.  For concurrent causes of variation, the ranking order for causes and the identification of primary and secondary causes. The discussion paper Quantify Common Causes/Reasons for Asset Performance Loss specifies a method for collecting cause data related to Asset output KPIs. A similar method may be applied to in-process, input and control measures. Assessment of the correlation between measures and the design of experiments can require expertise. Where such techniques are required ensure that an appropriately skilled resource is utilised. Resources The Investigation Leader is responsible for this task. Team members contribute. Time As soon as practical after the identification of the probable causes.