The accelerated adoption of distributed computing infrastructures has reshaped how modern enterprises organise technology portfolios, deliver services, and manage operational risk. Enterprises across financial services, healthcare, energy, manufacturing, and public administration are relocating workloads, data estates, and analytic pipelines from legacy on-premises environments toward elastic, service-oriented platforms. This transition is not a simple lift-and-shift exercise; it is a socio-technical transformation that must reconcile engineering realities with governance obligations, labour structures, vendor dependencies, and long-term strategic intent. This review consolidates evidence from technical, managerial, and regulatory literature to examine how organisations can structure such transitions responsibly and derive durable value from them. The analysis interrogates migration frameworks, reference architectures, data protection practices, financial operations models, portfolio management, workforce reskilling, and the role of advanced analytics and artificial intelligence in post-migration operations. Attention is paid to the contextual contingencies that shape migration outcomes, including organisational maturity, regulatory environment, legacy technical debt, and sectoral risk appetite. The review highlights the importance of evidence-based decision-making throughout the migration lifecycle, the integration of security controls early in the delivery pipeline, and the adoption of transparent governance mechanisms to preserve accountability. Emphasis is placed on patterns that enable reproducibility, automation, and continuous improvement, as well as mechanisms for cost discipline, observability, and resilience. The review foregrounds equity considerations in emerging economies, drawing on evidence from African markets, and discusses how strategic planning can mitigate vendor lock-in, compliance drift, and uneven realisation of promised benefits. The paper synthesises these findings into a set of practitioner-oriented recommendations that aim to de-risk organisational transitions, align technology investments with business strategy, and support sustained operational excellence over multi-year transformation horizons in heterogeneous enterprise settings.