Providing integrated circuit design service, namely, register-transfer-level, logic, circuit and layout designs, simulation, debugging, integrated circuit place and route, and verification; providing test service of integrated circuit for others; providing consultation service in the field of integrated circuit design, process and testing technology; integrated circuit design services for others, namely, design flow, design methodology, electronic design automation tool and electronic design automation services; providing design services for integrated circuit manufacturing companies, namely, standard/custom cell library design, testing program, test kit and electronic design automation technology support; design of intellectual properties for others, namely, computer hardware, firmware and software design for analog, radio frequency, memory, micro controller units and input/output interface intellectual properties