For example, these standards have ISO standard, CMM (Capability Maturity Model), CMMI (Capability Maturity Model Integrated). And CMMI is a SPI models from the Software Engineering Institute. With regard to process and quality improvement, these standards and models have a share in some common consideration. CMMI emphasizes continuous improvement, but the ISO standard emphasizes the minimum criteria with the quality system. It is unfairness to do a judgment with which one is much more bette