You decided to contract with a public cloud service. This saves you the trouble of upgrading your hardware as you expand. Cloud services typically provide security and backup, which are key to running a stable app.

The software developer wants to know if you prefer to develop an app that will run on a traditional$-$style server in cloud$-$based virtual machines that rely on laaS $($Infrastructure as a Service$)$ cloud services, or if you'd rather run the app in a serverless environment using PaaS $($Platform $$s a Service$)$ cloud options.