Software as a Service (SaaS)

Short answer: With software as a service, or SaaS, a company does not install or host the software itself. The provider runs the application, the servers and the storage. It also handles security fixes and upgrades. Customers use the software through a web browser or app, and they do not manage any of the machinery behind it.

SaaS differs from running traditional software on rented cloud servers. In that case the company still installs, updates and manages the application itself. With SaaS, the provider does all of that work. Many business tools for accounting, customer records, human resources, collaboration and reporting come as SaaS. Providers charge on a recurring basis, such as per user, by usage or by results. A company can usually start with a few users and add more as it grows.

The provider usually runs one shared application for many customers and keeps each customer's data separate. Customers configure settings, users and workflows within limits the provider allows, but they cannot change the underlying code. The provider applies updates centrally, so all customers move to new versions on its schedule. It stores data in locations it chooses, under its own security controls. Most products offer direct connections so other systems can exchange data with them. The contract and service terms set out availability, support and data handling.

A cleaning company with 25 staff uses a SaaS tool to schedule jobs. Each week, an office worker exports the job list and types it into the invoicing tool, which takes about 3 hours. Over 50 working weeks, that is 150 hours a year. Before renewing, the company checks two things. It confirms that it can export all job and customer data as a standard spreadsheet file. It also finds that the tool offers a direct connection to other software. The company uses that connection to send completed jobs to the invoicing tool automatically. The weekly re-keying stops and saves about 150 hours a year. The export check also means the company could leave later without losing its records.

SaaS lets growing companies use capable software quickly without building a technology team to run it. It replaces large upfront purchases with recurring fees. The trade-offs are ongoing fees, less control over features and the timing of changes, and reliance on the provider for security and availability. Before signing, operations leaders should review data ownership, export rights, price increase terms and where the provider keeps the data.

Subscription costs grow with headcount, and providers can raise them at renewal. Companies often collect many overlapping SaaS tools that nobody oversees. A provider outage, security breach or shutdown directly affects its customers. A regular review of who uses each tool and what data it holds keeps these risks visible.