Effective cost modelling involves which of the following?

Comprehensive and Detailed Explanation:

Effective cost modelling is a process that helps in understanding the cost structure of a product or service. It involves:

Data gathering:Collecting relevant data related to materials, labor, overheads, and other cost drivers.

Analysis of facts:Evaluating the collected data to understand cost behaviors and identify areas for cost reduction.

Supplier negotiation and issuing a request for quotation are subsequent steps that may utilize the insights gained from cost modelling but are not part of the modelling process itself.