{ "background": "The adoption of advanced industrial machinery fleet management systems in developing economies is a critical driver of productivity and safety, yet robust methodologies for evaluating their uptake are lacking. South Africa's heavy industry sector presents a complex environment for such technological transitions.", "purpose and objectives": "This study aimed to develop and apply a novel quasi-experimental methodology to measure the adoption rate of integrated fleet management systems within the country's industrial machinery sector, and to evaluate the methodological framework's efficacy.", "methodology": "A quasi-experimental design with a non-equivalent control group was implemented across multiple industrial sites. Adoption was quantified using a composite index derived from telematics data and operator surveys. The primary analysis employed a difference-in-differences model: $Y{it} = \\beta0 + \\beta1 \\text{Treat}i + \\beta2 \\text{Post}t + \\beta3 (\\text{Treat}i \\times \\text{Post}t) + \\epsilon{it}$, with inference based on cluster-robust standard errors.", "findings": "The methodological framework proved effective in isolating adoption effects. The estimated average treatment effect on the treated (ATT) was a 22.7 percentage point increase in the composite adoption index (95% CI: 18.1 to 27.3). Thematic analysis of barriers highlighted systemic data integration challenges as the predominant obstacle.", "conclusion": "The proposed quasi-experimental design provides a valid and reliable tool for measuring technology adoption in complex industrial settings. The measured adoption rate, while significant, indicates substantial room for growth beyond initial implementation.", "recommendations": "Industry stakeholders should utilise similar rigorous evaluation designs to benchmark adoption. Policymakers should focus support on overcoming data interoperability standards to accelerate uptake.", "key words": "technology adoption, quasi-experimental design, fleet management, industrial machinery, difference-in-differences, South Africa", "contribution statement": "This paper provides the first application of a quasi