The CDF consists of 4 design rooms and a number of support and ancillary rooms grouped around a central foyer. The main design room with 30 computer stations is used as the primary room for large mission or large instrument studies, while the project design room and the MICRA (Mission Concepts and Requirements Assessments) room are identical design rooms, separated by a glass wall, which are mainly used for smaller studies or reviews as well as splinter meetings of a larger study. The support design room can be used as more of a conventional meeting room with a central table or easily converted into a design room with all the facilities of the other design rooms. All the rooms are linked via an audio visual network allowing data from any screen or workstation to be displayed on any or all of the screens in the other rooms. All the rooms also have full video conference facilities via IP. Individual features of the rooms are as follows: