A company is planning to migrate its data processing tasks to a cloud environment. The primary goal is to enable real-time data analysis and improve decision-making processes. Which of the following cloud service models would BEST align with the company's need for extensive computational resources and a development platform tailored to their applications?
Software as a Service (SaaS)
High availability of network functions
Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)