1.1: Introduction to Cloud Computing in a Business Context

Cloud computing can be designed in one sense as a paradigm that delivers computing resources (from servers and storage to software applications) over the internet on an on-demand, pay-as-a-utility basis. In the classic definition by the U.S. National Institute of Standards and Technology (NIST SP 800-145), cloud computing provides “on-demand network access to a shared pool of configurable computing resources... that can be rapidly provisioned and released with minimal management effort or service provider interaction” [1]. In practical terms, this means businesses no longer need to own and maintain all their IT infrastructure. Instead, businesses can rent computing power, storage, and software services from cloud providers and access them remotely via the internet. This shift has transformative implications for business: it turns computing into a utility or service, akin to electricity or telecommunications, that companies can tap into as needed.

From a business perspective, cloud computing represents a strategic opportunity to increase agility, scalability, and cost-efficiency in IT operations. It aligns technology costs more closely with actual usage (converting heavy upfront capital expenses into ongoing operational expenses), and it enables organizations to rapidly scale resources up or down to meet changing demand. Today, cloud adoption is nearly ubiquitous – by some estimates over 90% of companies worldwide use cloud services in some form.

In this chapter, we will examine the business case for cloud computing, with a focus on large-scale cloud infrastructure and its business implications. We begin by reviewing the key drivers and motivations compelling organizations to adopt cloud solutions. We then discuss the “Everything-as-a-Service” (XaaS) model – including Infrastructure as a Service, Platform as a Service, Software as a Service, and more – which underpins cloud offerings. Next, we outline foundational considerations for governance, security, and compliance in the cloud, since managing risk and meeting regulatory requirements are vital when shifting core business operations to cloud platforms. Throughout the chapter, we will highlight real-world examples and case studies of companies leveraging cloud computing for competitive advantage – from cloud pioneers like Amazon and Google to cloud-powered businesses like Netflix and Zoom. These examples illustrate how cloud computing at scale is enabling new business models, driving efficiency, and providing resilience and agility in today’s digital economy.

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