—The software requirements decomposition can be taken
as a dynamic system. According to the nonlinear dynamic
requirements decomposition equations developed by us based on
the nonlinear dynamic system. This paper further researched the
chaotic phenomena of software requirements through simulations.
The occurrence of chaos in the process of software requirements
decomposition is determined by Requirements Decomposition Rate
Parameter (RDRP). When RDRP is too large, a small change may
cause the decomposition into an unstable state from a stable state.
The decomposition may also be in chaos even if it is nearly
completed when RDRP is unsuitable. Therefore, it is better for us
to let the decomposition outside chaos region to get all
requirements and avoid the influence of requirements change