Which cloud service focuses on enabling quicker development life cycles with reduced infrastructure requirements?

Platform as a Service (PaaS) is the correct choice because it provides a framework for developers to build, test, and deploy applications more efficiently. PaaS offers a set of tools and services hosted in the cloud that facilitate the entire application development process. It abstracts much of the underlying infrastructure, allowing developers to focus on writing code and developing features without needing to manage the hardware or networking aspects.

This service model significantly speeds up development cycles by providing pre-built components, development frameworks, and integrated environments where testing and deployment can take place seamlessly. As a result, organizations can innovate faster and respond to market changes more effectively, all while reducing the complexity and overhead associated with managing their own infrastructure.

Infrastructure as a Service (IaaS) and Software as a Service (SaaS) do not primarily focus on streamlining the development life cycle. IaaS typically provides virtualized computing resources over the internet, which requires more management and infrastructure consideration from the user. SaaS delivers software applications via the internet, where the end-users utilize applications without dealing with the underlying development process. Business Process as a Service (BPaaS) is a delivery model for business processes that could also involve a different focus outside of the development lifecycle.