What is Software as a Service, SaaS? ...and PaaS ...and IaaS

The video tutorial explains various software purchasing models, focusing on Software as a Service (SaaS). It describes SaaS as a subscription-based model where software is hosted online, offering benefits like cost predictability and maintenance by the provider. The video also introduces Platform as a Service (PaaS) and Infrastructure as a Service (IaaS), highlighting their advantages. It discusses the types of software available as SaaS and the potential challenges, such as data security and provider stability.

What is a key difference between buying software outright and using SaaS?

• SaaS requires a one-time payment.

• Buying outright requires no installation.

• SaaS provides continuous updates and maintenance.

• Buying outright includes free upgrades.

How does SaaS ensure users have the latest software version?

• Users pay extra for updates.

• Updates are not available in SaaS.

• Vendors automatically update the software.

• Users manually download updates.

What is a typical feature of a SaaS contract?

• Lifetime access without renewal.

• Ownership of the software.

• Unlimited free users.

• Subscription-based access.

Which of the following is NOT a type of software commonly offered as SaaS?

• Hardware management software

• Productivity software

• Entertainment software

• Office software

What does PaaS stand for?

• Process as a Service

• Program as a Service

• Platform as a Service

• Protocol as a Service

What is a primary benefit of using IaaS?

• Reducing the need for IT infrastructure

• Unlimited data storage

• Free software updates

• Owning physical servers

What is a major concern when using SaaS?

• Lack of software updates

• High initial costs

• Data ownership and security

• Limited software options

Why is it important to evaluate the stability of a SaaS provider?

• To avoid software updates

• To ensure long-term access to services

• To guarantee data ownership

• To ensure low subscription costs

What is a potential downside of SaaS related to data?

• Data is always public.

• Data is always stored locally.

• Data may be stored in different jurisdictions.

• Data is never backed up.

What should businesses consider before choosing SaaS?

• The balance of advantages and disadvantages

• The number of available software updates

• The type of hardware required

• The color of the software interface