Software as a Service

SaaS is becoming an increasingly prevalent delivery model as underlying technologies that support Web services and service-oriented architecture (SOA) mature and new developmental approaches, such as Ajax, become popular. Meanwhile, broadband service has become increasingly available to support user access from more areas around the world.

SaaS is closely related to the ASP (application service provider) and On Demand Computing software delivery models. IDC identifies two slightly different delivery models for SaaS. The hosted application management (hosted AM) model is similar to ASP: a provider hosts commercially available software for customers and delivers it over the Web. In the software on demand model, the provider gives customers network-based access to a single copy of an application created specifically for SaaS distribution. IDC predicts that SaaS will make up 30 percent of the software market by 2007 and will be worth $10.7 billion by 2009.

Benefits of the SaaS model include:

• easier administration
• automatic updates and patch management
• compatibility: All users will have the same version of software.
• easier collaboration, for the same reason
• global accessibility.

The traditional model of software distribution, in which software is purchased for and installed on personal computers, is sometimes referred to as software as a product.

Getting started with Software as a Service

To explore how SaaS is used in the enterprise, here are some additional resources:

Learning Guide: SaaS and On-Demand CRM: Get best practices for evaluating, implementing and managing SaaS CRM.

Learning Guide: Choosing a SaaS or on-demand CRM vendor: Learn about the top vendors in the CRM market.

Tip: Integrating Software as a Service (SaaS) CRM and ERP applications: Find the best practices for integrating SaaS and ERP.

Common problems with Software as a Service (SaaS) implementations: Prepare yourself for the issues that often arise during a SaaS CRM implementation.

Will on-demand CRM eventually replace on-premise CRM?: Get an expert's take on whether on-premise CRM is the future of SaaS CRM.

Learn more about Software as a Service and cloud computing

Do you have something to add to this definition? Let us know. Send your comments to techterms@whatis.com

More resources from around the web: - Jim Zucco's SearchNetworking.com article explains benefits of the SaaS model. - Phil Wainewright discusses SaaS issues in his ZDNet blog. - DigitalJournal.com explores the market's rush to SaaS. - Barney Beals looks at the CRM SaaS market. - BusinessWeek Online dispels 8 common myths about SaaS

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