Why a Design Brief is critical to the Design Process

A design brief is critical to the design process because it helps to gain/develop trust and understanding of the project information between the client and the designer.
However it is also critical to the rest of the staff involved with the design process. The reason for this is because if the employee was off of work sick, the design brief can then be easily passed onto another member of staff. This provides them with the information needed for the project.
It could also be critical when passing on information to other related departments, this ensures a stable  and easy way of transferring the correct information to them. It is also critical to having the information and needs of the client in a brief so that you dont have to call the client to find out each part of what they require.
In conclusion, a design brief is critical to the design brief as it is the most accurate, simplest and most efficient way of keeping track of the clients needs.