Questions

High level data models provide the concepts that are close to the way many users perceive data

Fear of places and situations that might cause panic, helplessness or embarrassment is called Agoraphobia. 

Fear of crossing road causes some panic in them and comes under Agoraphobia.

The project initiator or sponsor should be at a level that is appropriate to funding the project. They will either create the project charter or delegate that duty to the project manager.

Projects are authorized by someone external to the project such as a sponsor, PMO or portfolio steering committee.