Affiliations: [a] Department of Software Science, School of IT, Tallinn University of Technology, Tallinn, Estonia | [b] Faculty IV, Department of Computer Science, University of Applied Sciences and Arts Hannover, Hannover, Germany | [c] School of Business, FHNW University of Applied Sciences Northwestern Switzerland, Olten, Switzerland
Correspondence:
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Corresponding author: Irina Astrova, Department of Software Science, School of IT, Tallinn University of Technology, 12618 Tallinn, Estonia. E-mail: irina@cs.ioc.ee.
Abstract: This paper is aimed at helping organizations to understand what they can expect from a serverless architecture in the future and how they can make sound decisions about the choice between microservice and serverless architectures in the present. A serverless architecture is a new approach to offering services in the cloud. It was invented as a solution to the problem that many organizations are facing today – about 85% of their servers have underutilized capacity, which is proved to be costly and wasteful. By employing the serverless architecture, the organizations get a way to eliminate idle, underutilized servers and thus, to reduce their operational costs. Many cloud providers are now jumping to the serverless world because they know it is going to be the future of software architectures. However, being a new approach, the serverless architecture is still relatively immature – it is in the early stages of its support by cloud service platform providers. This paper provides an in-depth study about the serverless architecture and how to apply FaaS in the real world.
