Abstract: Under the background of educational informatization, the informatization construction and management of education and teaching key links need to be improved. As one of the key points in the construction and management of vocational and technical college, how to improve the efficiency of professional diagnosis reform through information construction is an important topic. Taking the construction of the professional diagnosis and reform system of Taizhou Vocational College of Science & Technology as the research sample, through the investigation and research of the college, relevant departments, user experience. From the perspective of system product design, it was found that the reform system has problems such as unclear veins, complex design, and inaccurate data. Focus on the practicality of the system, restructure from four dimensions, and explore the design path of the reform system design integration, interactive humanity, flat interface, and feedback accuracy.

Key words: Product service concept, Construction of vocational college, Professional diagnosis and reform, Information management, Internal quality assurance mechanism, System design