Chapter 9: Cloud Computing, SaaS, and Amazon

Chapter Overview

Chapter 9 explains cloud computing and the rise of Software as a Service (SaaS). Instead of companies owning their own servers and infrastructure, firms can rent computing power and applications through cloud providers like Amazon Web Services, Microsoft Azure, or Google Cloud. This allows organizations to scale quickly, reduce upfront costs, and deploy systems faster.

Cloud computing also changes how software companies make money. Many SaaS providers use subscription pricing models, freemium tiers, or usage-based billing. These models allow firms to distribute software globally while continuously updating and improving their products. :contentReference[oaicite:2]{index=2}

Vocabulary

Cloud Computing – Delivering computing services such as servers, storage, databases, and software over the internet instead of on local machines.

Amazon Web Services (AWS) – Amazon’s cloud computing platform that provides on-demand infrastructure, storage, computing power, and other services to companies.

Software as a Service (SaaS) – Software that is hosted online and accessed through a browser instead of being installed locally on a computer.

Service Level Agreement (SLA) – A contract defining the expected level of service between a provider and a customer, including uptime guarantees and response times.

Consumerization of Technology – The trend where consumer technology innovations influence enterprise IT decisions.

Key Concepts

Cloud Infrastructure

Earlier, companies had to run their own data centers. Cloud computing allows companies to outsource this infrastructure to specialized providers. Many firms now rely on AWS or other platforms instead of building their own servers and cooling systems. :contentReference[oaicite:3]{index=3}

SaaS Business Model

Many SaaS providers earn revenue through subscription models where customers pay monthly or annually. Others use freemium pricing where a basic version is free but advanced features require payment. :contentReference[oaicite:4]{index=4}

Benefits of Cloud Computing

• Faster deployment of systems
• Lower upfront infrastructure costs
• Remote access to systems
• Scalable computing resources
• Higher service reliability from major providers

Cloud systems allow companies to scale computing resources up or down depending on demand, which is difficult with traditional on-premise systems. :contentReference[oaicite:5]{index=5}

Risks of SaaS and Cloud Computing

• Dependence on a single vendor
• Latency and network performance issues
• Data security concerns
• Potential switching costs
• Some hosted software lacks full desktop features

Because data and computation occur on remote servers, organizations must carefully evaluate security, performance, and long-term vendor reliability. :contentReference[oaicite:6]{index=6}

Practice Quiz