What is used to create a link on an HR Case form that accesses information outside the application?

Which module provides a user-friendly interface new HR Skills and assigning HR skills to members of the HR department?

ServiceNow has identified 3 maturity levels for an HR customer.
What are they?

What role is required to assign scoped HR roles?

The customer you are implementing has purchased HR Service Delivery Enterprise which includes Enterprise Onboarding and Transitions.
Which plugin must be activated to utilize Enterprise Onboarding and Transitions?