The course in this study teaches students about local rural communities. Using theoretical knowledge and teamwork, students can gain interdisciplinary abilities and learn about local practices. The curriculum incorporates the Design Council's "double diamond" design process (4Ds) model, which comprises the following phases: the "discover" phase, during which the community and environment are observed to highlight people's needs; the "define" phase, during which problems that can be addressed are identified and defined; the "develop" phase, during which the tools and approaches for resolving problems are developed; and the "deliver" phase, during which ideas are implemented and specific solutions are developed. Based on community issues, the course implements 4 innovative service projects: (1) planning a community's overall visual image design; (2) building a user-friendly and interactive sign system; (3) creating a community information website that provides 2-way communication through display- and usage-oriented features; and (4) creating a 360-degree virtual tour community highlight using application tools and new media technologies to attract visitors to sites and attractions. The 4Ds innovative teaching method teaches students to discover and solve problems and effectively proposes innovative service design solutions. Moreover, community residents can witness the creativity and value of college students through this method.