Having lived through the rise and fall in demand for temple carvings, Tsai De-tai remains optimistic. He believes that there will always be a demand for culture-related industries, but approaches will change and “restoration” will become more of a science. While a variety of different views have emerged in recent years, restoration is still the mainstream, and regardless of the proportions, material, or style, he always aims to restore the work to its original state.
Chang Kun-Chen's research can be categorized into three themes: first, interdisciplinary discourse on the culture of built environments; second, historical and theoretical explorations of traditional architecture; and third, historical study of cultural heritage. Architectural design is his particular area of expertise, along with architectural history and theory, religious architecture, and the preservation and reuse of historical sites.