The problem is, the game system is a system that applied to other subjects is difficult. I need to change the projector in another subject and cause confusion. The system cannot write the game to have another Diagram DFD wrote.
The problem is, the game system is a system that applies to other subjects can be difficult. The need to change the project in other subjects and confusing. Game system can not write DFD have had to write another Diagram.
The problem is the game system is a system applied to different subjects can be difficult. The need to change the project in other subjects and confusing, the game system can't write DFD, therefore, need to write Diagram.