Trends of more team working and cross-functional activities in Integrated Product Development increases the requirements on the computer-aided engineering technology used. Experience of using solid models in a product development project at Volvo Aero is presented. Further, it is described how thermal boundary conditions, calculated using Computational Fluid Dynamics simulations, can be integrated with thermal structural analysis in a commercial Finite Element code. It is argued that incremental technology development using technology based on international standards, e.g., the STEP standard, is a low-risk, highly efficient strategy for improving multi-functional analysis systems.