War Room is a room dedicated to a project to provide communication and collaboration space for a project team. A room used for conferences and planning that is often specially equipped (as with computers, or charts).A room where people meet and exchange plans, ideas, information, etc., in an active way.
Earned value (EV), also known as Budgeted Cost of Work Performed (BCWP), helps project managers measure a project's performance. It's the relationship between the budget and the percentage of completion of a project. It is a method used to calculate the health and status of any project by taking time and cost into consideration.