You will find documents and calculation methods in ship design courses or in project development calculation software and in cost evaluation modules for small fishing vessels, for example, which can be extrapolated to large vessels.

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A construction project is essentially a series of integrated activities over a specific timeframe. This naturally involves several interrelated business processes and functions. To develop a KPI, I recommend analyzing the ongoing process (end-to-end) before reviewing the cost aspect as an indicator. When linking it to a re-budget, you can use the Value Stream Mapping method to identify which processes are and are not providing value.

But again, understanding the end-to-end process is crucial. A lean production or lean construction approach can be used as a structured framework.

In my opinion, software is an enabler; what's more important is understanding how to create a more detailed activity structure, referring to a work breakdown structure, and then adding resource costs, thus controlling cost versus time.

Thank you for sharing your thoughts.