As Stephen Hawking said, we are all now connected by the Internet, like neurons in a giant brain. Since the introduction of Internet, technology improved and formed new industries by dramatically changing how people communicate, interact and access information. Since Amazon launched its Elastic Compute Cloud (EC2) service, back in 2006 the term cloud computing started to involve in commercial areas. Part of the cloud motion is the introduction of Serverless computing known as Function-as-a-Service (FaaS). Nevertheless, providing or using cloud services makes it necessary to deliver or rely on a formal framework to guarantee a certain quality of service. Especially new emerging cloud services often lack appropriate service levels or terms of service. Serverless computing is one of the latest products on the market; therefore, it is an interesting topic to assess Serverless computing solutions of major Cloud Service Providers in terms of cloud service level agreement and management. The evaluation of Serverless computing solutions in this paper will follow the criteria given by the latest version of ISO/IEC 19086-1:2016 “Cloud computing service level agreement (SLA) framework”.
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