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Microsoft has several suggestions to help you maximize the use of the Resource Manager model when working with your applications and components.

 Use templates rather than using scripting like PowerShell or the Azure Command-Line Interface (CLI). Using a template allows resources to be deployed in parallel, making it much faster than using a script executed sequentially.

 Automate as much as possible by leveraging templates. You can include configurations for various extensions like PowerShell DSC and Web Deploy. This way, you don’t need any manual steps to create and configure the resources.

 Use PowerShell or the Azure CLI to manage the resources, such as to start or stop a virtual machine or application.

 Put resources with the same lifecycle in the same resource group. In our example above, what if the database is used by multiple applications? If that’s true, or if the database is going to live on even after the application is retired or removed, you don’t want to re-create the database every time you redeploy the application and its components. In that case, put the database in its own resource group.

Source of Information : Microsoft Azure Essentials Fundamentals of Azure Second Edition