Software as a Service
SaaS
Simple Explanation
Software as a Service, usually called SaaS and pronounced “sass,” means using a computer program that another company provides and maintains over the internet. Think about subscribing to a movie streaming service. You don't need to own all the equipment used to store and deliver the movies. You sign in and use the service. SaaS works in a similar way with software. Instead of installing and maintaining every program yourself, you use an application that the provider operates. Examples include online email, appointment-booking systems and some accounting tools.
Technical Explanation
Software as a Service is a method of delivering software in which a provider hosts, operates and maintains an application that customers access over the internet. The provider typically handles software updates and the underlying infrastructure, while customers manage their accounts, data and settings.
Business Use Case
A small consulting company needs a system to manage customer enquiries, sales opportunities and follow-up tasks. Instead of building its own software, the company subscribes to an online customer-management application. Employees sign in through a web browser to record customer conversations, assign tasks and monitor sales activity. The software provider maintains the application and releases updates. This allows the business to use a professional system without developing and maintaining one from scratch.
Real-Life Example
Imagine Emma wants to organize a family reunion. She creates an online spreadsheet listing relatives, meal preferences and travel arrangements. She shares it with family members, who can update the information from their own devices. The spreadsheet service is an example of SaaS because the software runs as an online service maintained by its provider. Emma doesn't need to install or maintain a separate spreadsheet program for everyone.