Where should productivity rates ideally come from?

The most reliable source for productivity rates is company historical data. This is because it reflects the actual performance of a company in its past projects, providing insights into how efficiently work was completed under similar conditions and circumstances. Historical data takes into account the specific nuances of the company's workforce, equipment capabilities, and project management practices.

Using this data allows estimators to develop more accurate and realistic productivity rates that are tailored to the unique characteristics of the company and its operational context. This can lead to better cost estimates and project scheduling, ultimately improving project outcomes.

While market research, industry standards, and new project estimates provide valuable context and can serve as benchmarks or supplementary information, they may not accurately capture the specific efficiencies and challenges faced by an individual company on a project. Therefore, relying on company historical data is essential for creating a dependable basis for productivity rates.