Which of the following statements is true?

Which of the following statements is true?

• SaaS is used by software developers
• Applications cannot be developed in the cloud
• PaaS is used by end users
• PaaS is used to create web services 

EXPLANATION

There are dozens of possible ways to develop software. A wide variety of existing programming languages with their own strong and weak sides, frameworks, libraries, and other development tools allow creating applications of different types: for desktops, for mobile devices, web applications that work via browser, etc. Different software development methodologies and frameworks like Scrum or Kanban will help you adapt to the development process for various types of projects, reduce costs, eliminate risks, and use the available resources efficiently. But besides the development itself, there’s another important issue that requires close attention. We’re talking about the way of licensing and delivering the software.
When there’s a need to choose what framework, technology, or a programming language should be used during the development process, in most cases, the development company makes the final decision, and the customer relies on the developer’s experience and skills. But the chosen software delivery model affects both the customer and the developer because different models have different pros and cons and require different development strategy.
In this article, we’ll talk about one of the existing software licensing and delivery models named Software as a Service, or SaaS, to be short, and the key benefits it offers.