Kriativ-tech Volume 1, Issue 11, Edição Nº 11 – 4-12-2025

Authors

Diogo Correia, Student, ISTEC Lisboa - Instituto Superior de Tecnologias Avançadas Lisboa, PortugalAndreia Teles Vieira, Assistant Professor at ISTEC Lisboa, CIAC-PLDIS

Media

PDF

To cite this article

Diogo Correia, Andreia Teles VieiraComputing Service Models: General Concepts and Differences Among IaaS (Infrastructure as a Service), PaaS (Platform as a Service), and SaaS (Software as a Service)

Abstract

This study focuses on cloud-computing service models, specifically the differences among IaaS (Infrastructure as a Service), PaaS (Platform as a Service) and SaaS (Software as a Service). Cloud computing is a fundamental technology in today’s business environment, offering advantages such as scalability, cost-efficiency and flexibility. The project seeks to demystify each service model by highlighting its unique characteristics and ideal use cases. IaaS provides virtualised infrastructure, PaaS supplies development platforms, whereas SaaS delivers software applications as a service. The aim is to present a detailed analysis that helps readers identify which model best suits their needs, thereby optimising cloud adoption to achieve greater efficiency and innovation in business.

Keywords

Cloud Computing, IaaS (Infrastructure as a Service), PaaS (Platform as a Service), SaaS (Software as a Service), Scalability, Cost Efficiency, On-demand Self-service, Elasticity, and Scaling

References

[1] Braga, A. S., Silva, G. M., & Barros, M. C. (2012). Cloud computing. Instituto deComputação-Universidade Estadual de Campinas, 18.[2] Sousa, F. R., Moreira, L. O., & Machado, J. C. (2009). Computação em nuvem: Conceitos, tecnologias, aplicações e desafios. II Escola Regional de Computação Ceará, Maranhão e Piauí (ERCEMAPI), 150-175.[3] Oliveira Freitas¹, L., & Neto, A. P. F. COMPUTAÇÃO EM NUVEM: UMA BREVE REVISÃO BIBLIOGRAFICA. energia, 3, 12.[4] Cogo, G. S. (2013). Análise da intenção de adoção da computação em nuvem por profissionais da área de TI.[5] Mansur, A. F. U., Gomes, S. S., Lopes, A. D. A., & Biazus, M. C. B. (2010, August). Novos rumos para a Informática na Educação pelo uso da Computação em Nuvem (Cloud Education): Um estudo de Caso do Google Apps. In Foz do Iguaçu: Anais do XVI Congresso Internacional ABED de Educação a Distância (p. 35). Sn[6] McCoy K. (2017) “Target to pay $18.5M for 2013 data breach that affected 41 million consumers”. USAToday, May 23rd 2017 edition, Money section[7] Oliveira, C., Fambrini, F., de Oliveira, M. G. C., & Moreira, W. (2020). Computação emNuvem