Cloud model delivering complete applications over the internet, accessed via web browser.
Software as a Service (SaaS) delivers complete applications over the internet—users access software via web browsers without installing or maintaining anything locally. The provider manages everything—infrastructure, platform, and application. Examples include Microsoft 365, Salesforce, Dropbox, and countless business applications. SaaS offers simplicity and accessibility but requires attention to data security, access controls, and vendor management.
Why It Matters
The DSC Perspective:
SaaS dominates modern business software. Understanding SaaS security responsibilities—access controls, data protection, vendor assessment—is essential. You're responsible for how your people use SaaS applications and what data they store there.