Technology roadmapping (TRM) is a flexible methodology that is widely applied at firm, sector, and national levels to support long-term strategic planning, innovation, and policy development. As the case study approach is a prevalent methodology used in TRM development, this study conducts a systematic literature review to investigate the case studies applied in TRM research. The findings are discussed in terms of the strengths and limitations of the case study methodologies as well as five future research directions, including improving TRM implementation process, further development of scenario-based and social-needs-driven roadmaps, and exploration of the applications in agile innovation management and open innovation.

技术路线图 (TRM) 是一种灵活的方法，广泛应用于公司、部门和国家层面，以支持长期战略规划、创新和政策制定。由于案例研究方法是 TRM 开发中使用的普遍方法，本研究进行了系统的文献综述，以调查在 TRM 研究中应用的案例研究。研究结果讨论了案例研究方法的优点和局限性以及五个未来的研究方向，包括改进 TRM 实施过程、进一步开发基于场景和社会需求驱动的路线图，以及探索在敏捷创新管理和开放式创新。