Establishing Structures Establishing a function structure by breaking down the overall function into sub-functions. The clear definition of existing sub-systems facilitates the search for solutions by dealing with each sub-function component separately. Determine logical functional relationships with the search for essential functions. Logical relationships are derived directly from the corresponding of the problem specification. Function structures should be kept as simple as possible to so as to lead to simple and economical solutions. Shanghai Jiao Tong University 10Shanghai Jiao Tong University 10 Establishing Structures n Establishing a function structure by breaking down the overall function into sub-functions. n The clear definition of existing sub-systems facilitates the search for solutions by dealing with each sub-function component separately. n Determine logical functional relationships with the search for essential functions. n Logical relationships are derived directly from the corresponding of the problem specification. n Function structures should be kept as simple as possible to so as to lead to simple and economical solutions