Software as a Service

Software as a Service

Software as a Service

Software as a service provides applications hosted and maintained by the vendor, accessed through a browser or client and licensed by subscription rather than perpetual purchase.

Updates are delivered continuously rather than through version upgrades the customer schedules.

Alternative Names:

SaaS, Subscription Software

Why it Matters?

Continuous updates are the operational difference that matters for legal buyers. A vendor can change functionality, including model behavior in AI products, without the firm's approval or notice, which complicates validation and supervision obligations. Contracts should address change notification and, for AI tools, whether the underlying model version can change without disclosure.

Frequently Confused with

Related terms

Frequently asked questions

What is the practical risk of continuous updates?

What is the practical risk of continuous updates?

Functionality can change without the firm's approval, which for AI tools may mean the underlying model changes after validation was performed.

How is that addressed contractually?

How is that addressed contractually?

Through change notification requirements and, for AI products, commitments regarding model version disclosure and advance notice of material changes.