RBAC is critical for ensuring the right employees have access to the right documents. Command line tools are the first step. However, a UI similar to Windows is needed for most IT organizations (who don’t write scripts)
Until now, to give people the ability to manage Azure you had to give them full control of an entire Azure subscription. Now, using RBAC, you can grant people only the amount of access that they need to perform their jobs. Download the generally available RBAC command-line management tools or use the Azure Management Portal (preview) to manage access for your production Azure workloads.
When it comes to identity and access, most organizations that are considering using the public cloud are concerned about two things:
Ensuring that when people leave the organization they lose access to resources in the cloud.
Striking the right balance between autonomy and central governance. For example, giving the project teams ability to create and manage virtual machines in the cloud, while centrally controlling the networks to which those virtual machines connect.
Full Story on Azure Blog