With reference to “Software as a Service (SaaS)”, consider the following statements:

1. SaaS buyers can customise the user interface and can change data fields.

2. SaaS users can access their data through their mobile devices.

3. Outlook, Hotmail and Yahoo! Mail are forms of SaaS.

Which of the statements given above are correct?

The correct option is 1, 2 and 3.

Let us analyze each statement step-by-step to understand why all of them are correct:

Statement 1: SaaS buyers can customise the user interface and can change data fields.
Software as a Service (SaaS) applications are highly configurable. While the underlying source code is shared across all users (multi-tenant architecture), buyers can easily customize the user interface (UI) to match their brand (like logos, color schemes, and dashboard layouts) and modify data fields to capture specific information unique to their business needs without altering the common software infrastructure. Therefore, Statement 1 is correct.

Statement 2: SaaS users can access their data through their mobile devices.
Since SaaS applications are hosted in the cloud, they are delivered over the internet. Users can access the service and their data from any device with an internet connection and a web browser or a dedicated mobile application, including smartphones and tablets. Therefore, Statement 2 is correct.

Statement 3: Outlook, Hotmail and Yahoo! Mail are forms of SaaS.
Web-based email services like Microsoft Outlook (web version), Hotmail (now Outlook.com), and Yahoo! Mail are classic examples of consumer-facing SaaS. The service provider hosts the email client and data on their servers, and users access their emails through web browsers or apps without needing to install server software. Therefore, Statement 3 is correct.

Since all three statements are correct, the correct choice is 1, 2 and 3.