{ "background": "The adoption of advanced process-control systems in industrial operations within developing economies is often advocated but poorly quantified. In Nigeria, significant investment in such technologies has occurred, yet rigorous methodological evaluations of their uptake and operational integration are scarce, hindering evidence-based policy and practice.", "purpose and objectives": "This case study aims to methodologically evaluate the rate and determinants of process-control system adoption within selected industrial operations. Its primary objective is to demonstrate the application of a quasi-experimental design to isolate and measure the causal effect of targeted intervention programmes on technology adoption.", "methodology": "A quasi-experimental, difference-in-differences design was employed, comparing treatment and control groups of manufacturing plants before and after a defined intervention period. The core statistical model is specified as $Adoption{it} = \\beta0 + \\beta1 (Treati \\times Postt) + \\beta2 X{it} + \\alphai + \\deltat + \\epsilon{it}$, where $\\alphai$ and $\\deltat$ represent plant and time fixed effects. Robust standard errors were clustered at the plant level.", "findings": "The intervention was associated with a statistically significant increase in adoption rates. The adjusted mean adoption rate in the treatment group was 34 percentage points higher than in the control group post-intervention (95% CI: 22 to 46). A key thematic finding was that technical workforce capacity was the most frequently cited determinant of successful integration, overshadowing initial capital cost concerns.", "conclusion": "The quasi-experimental approach provided a robust framework for evaluating technology adoption, moving beyond descriptive case analysis. The findings confirm that structured intervention can substantially accelerate adoption, but success is contingent on parallel investments in human capital.", "recommendations": "Industrial policy should couple technology promotion with dedicated technical training programmes. Future evaluations of engineering systems in similar contexts should employ quasi-experimental designs to strengthen causal inference. Plant managers should prioritise workforce upskilling alongside new system procurement.", "