6Rs framework + TIME-quadrant decisioning + tech-debt register — the strategic layer that decides what to migrate, what to retire and what to invest in.
Migration is execution; rationalization is strategy. Without a 6Rs framework (Rehost / Replatform / Refactor / Repurchase / Retire / Retain) and TIME-quadrant view (Tolerate / Invest / Migrate / Eliminate), migration plans become activity, not value. APR is what makes Legacy Migration (TTX_13) deliberate instead of reactive.
A senior-led delivery sequence — not a template dump. Each phase is operated with your team, not handed over as a deck.
Build full app inventory with function, tech stack, business value, run cost and ownership; baseline the portfolio.
Score every app on Tolerate / Invest / Migrate / Eliminate with business + tech owners; agree quadrant placement.
Apply 6Rs (Rehost / Replatform / Refactor / Repurchase / Retire / Retain) with reasoning, sequencing and TCO impact.
Lock 3-yr investment + retirement roadmap, link tech-debt register to APR decisions and install annual APR review cadence.
8–12 weeks