In a car cabin, there are various devices which have display for drivers and passengers. Among them, especially IVI system would have the most screen transition over than 1,000. In such large scale SW of IVI system, what would be key point for HMI development? E-cockpit system is composed of multiple ECU like IVI, Digital meter, Head up Display(HUD), Camera Monitoring system (CMS), ADAS and so on. In developing such e-cockpit system, what would be required for HMI tool? Cabin would be more like living room by autonomous driving technology, AR-goggles and gesture unit might be integrated on top of E-cockpit system. What is crucial for such system in HMI respect. Mr. Tanabe argues such key points of Qt for Automotive.