Standardization of Man-Hours Requirements in Multi-Years Projects in the Indonesian Shipyard Industry

The shipbuilding industry plays a vital role in international trade, with ship construction being a complex technical process requiring skilled labor. This study aims to analyze and develop a standardized estimation model for man-hour (MAN- HOURS) requirements in the execution of multiyear projects within the shipyard industry, specifically at PT DEF. Based on historical data from the past 10 years encompassing 16 shipbuilding and general engineering projects, the research employs a quantitative descriptive approach using multiple linear regression analysis. Key variables include Project Duration (months), Contract Price (in million Rupiah), and Ship Weight (in tons), with man-hours as the dependent variable. The results of the classical assumption tests—normality, multicollinearity, and heteroscedasticity— indicate that the regression model meets the necessary statistical assumptions. Furthermore, hypothesis testing reveals that the variables of Contract Price and ship weight significantly influence the man-hour requirements, whereas project duration does not show a statistically significant impact. The resulting regression model provides a reliable basis for predicting labor requirements in similar future projects. This standardization is expected to improve workforce planning accuracy, enhance operational efficiency, and offer practical recommendations for optimizing multiyear projects in the shipbuilding industry.