A Comparative Study of Cloud Service Models: IaaS, PaaS, and SaaS in Real-World Applications

Abstract

This paper provides a comprehensive comparative analysis of the three primary cloud service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). It explores the definitions, key characteristics, and benefits of each model, examines their cost structures, scalability, security, and management aspects, and highlights their real-world applications through case studies. The paper aims to offer insights into selecting the most appropriate cloud service model based on organizational needs and provides recommendations for effective implementation and optimization.