Scaling HSIA means repeating what works and containing what varies. Treat templates as products: version them, review changes, and know which sites inherit updates.
Hierarchy that matches the business
Model org, property, and zone the way leadership already thinks about the portfolio. Policies should roll down without forcing identical portals where brand or regulation differs.
Change control
Use previews, staged rollouts, and rollback paths. When something breaks at one site, fix the template—not just that one box.