From Fig 3 it can be seen that the constituents of the IOCE for the RCM framework make up the other stages in
the product lifecycle. Using the context diagram and the product lifecycle (Fig 3 & Fig 2) as a guide, a SIPOC
(suppliers, inputs, process, outputs and customers) diagram [18] (see Fig 4) can be made for the RCM framework to
clearly understand the specific links of RCM framework for a wind turbine gearbox to other stages of the gearbox
lifecycle. Suppliers and customers define the cross-functional teams and individuals who are stakeholders in
providing the inputs and making use of the outputs respectively, from the RCM framework. For the purpose of this