O'Reilly logo

CISA® Certified Information Systems Auditor®: Study Guide, Third Edition by David Cannon

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Using Software as a Service (SaaS)

Since the beginning of the computer industry, software providers have operated service bureaus to process data for users. Early service bureaus were outsource vendors hosting applications on the vendor’s large mainframe computer located in a remote data center. Subscribers would submit their requests via printed forms, keypunch cards, or terminals on dial-up lines. Examples included CompuServe, electronic data processing for payroll, and bulletin board services (BBS).

The Internet changed the way we connect to the vendor, but the operating concept is still the same. Over the years, a smart salesperson introduced the term application service provider (ASP) and software as a service (SaaS) to make this service ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required