Develop a comprehensive methodology for creating a 5-year technology roadmap for a mid-sized enterprise undergoing digital transformation. Your methodology should include: 1) A process for assessing current technology capabilities and identifying gaps, 2) Methods for prioritizing technology investments across business units, 3) Approaches to balancing technical debt remediation with innovation initiatives, 4) Strategies for incorporating emerging technology trends while managing risk, 5) Governance structures for maintaining alignment between technology investments and business objectives. Address how to create flexibility in the roadmap to accommodate changing business conditions and how to measure and communicate progress to executive stakeholders.