Overview
Software as a Service (SaaS) is a cloud computing model where applications are delivered over the internet on a subscription basis. Instead of installing and maintaining software on individual devices, users access applications through a web browser. The provider hosts, maintains, and updates the software, making it available on demand.
What Problem Does It Solve?
Traditional software requires installation, upgrades, and licence management, which can be time-consuming and costly. SaaS solves this by centralising software delivery in the cloud. Users always have the latest version, organisations reduce IT overhead, and software becomes accessible from anywhere.
How It Works
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Hosted applications: Providers run the software on their infrastructure.
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Multi-tenancy: Many customers share the same application instance securely.
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Subscription model: Customers pay monthly or annually for usage.
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Access via browser: Applications are delivered over the internet, with no need for local installation.
Everyday Benefits
- Quick setup with no installation required.
- Automatic updates and patches managed by the provider.
- Lower upfront costs compared to traditional licences.
- Accessibility from any device with internet access.
Deployment Considerations
Popular SaaS products include Microsoft 365, Google Workspace, Salesforce, and Zoom. While SaaS simplifies software delivery, organisations must evaluate security, data residency, and integration with existing systems. SaaS is ideal for businesses of all sizes looking to reduce IT overhead and increase flexibility.
