Abstract
For the effective system development, it is important to consider the system model with high level of abstraction derived by analyzing system requirements and its functions from the early phase of the development. Through the requirement analysis and functional architecting, trade off analysis and evaluation is performed. In this paper, validating the system model utilizing 1DCAE is discussed. As for example, a system model and a simulation model of a control system for a motorcycle are derived and validated based on system analysis using SysML (System Modeling Language).