ERP Modernization Outcomes in Cloud Migration: A Meta-Analysis of Performance and Total Cost of Ownership (TCO) Across Enterprise Implementations

Abstract

Enterprise ERP modernization through cloud migration is promoted as a route to higher performance and lower total cost of ownership (TCO), yet enterprises often experience mixed results and hidden cost leakage. To address this problem, the study measured post-migration performance and TCO and modeled drivers of both outcomes. A quantitative, cross-sectional, case-based design synthesized survey data from N = 210 stakeholders across six cloud-migration cases (SaaS 56.2%, hybrid 43.8; phased 67.1%, big-bang 32.9%). Independent variables were cloud migration readiness, implementation quality, governance and risk management maturity, change management effectiveness, and vendor or partner support; dependent variables were ERP performance outcomes and TCO outcomes, decomposed into visible/direct and hidden/indirect components. Analysis began with Cronbach’s alpha to confirm scale consistency (readiness α = 0.89; implementation quality α = 0.91; governance α = 0.87; change management α = 0.90; vendor support α = 0.88; performance α = 0.93; TCO α = 0.92), then applied descriptive statistics, Pearson correlations, and multiple regression, with a Cloud Migration Footprint Index (CMFI) and a Performance and TCO Tradeoff Map. Results showed performance improvement (M = 3.94, SD = 0.62) and TCO improvement (M = 3.62, SD = 0.66), with visible benefits (M = 3.76, SD = 0.71) exceeding hidden cost pressure (M = 3.41, SD = 0.78) by 0.35 (HCR = 0.91). Performance correlated most with implementation quality (r = 0.68) and change management (r = 0.63), and the performance regression explained 61% of variance, F(5,204) = 64.22, p < .001, led by implementation quality (β = 0.34) and change management (β = 0.26). For TCO, the regression explained 47% of variance, F(5,204) = 35.89, p < .001, with governance maturity strongest (β = 0.29) and change management not significant (p = .074). High-footprint cases (CMFI M = 0.67) reported higher performance (M = 4.08) but higher hidden-cost pressure (M = 3.52). Overall, 41.4% were modernization winners, while 22.9% showed performance-first cost leakage, implying that governance and lifecycle controls protect cloud ERP business cases while sustaining gains.