continuum
From left at the "All is orginal" state, to right where "Nothing is the same" as before.
In software and product planning, a continuum means the space between two extremes is filled with many valid intermediate states, not only “all or nothing.”
A decision can move gradually along the range, rather than treating the choice as a single on/off switch :
- add a new path
- run
- old systems in parallel and
- new systems in parallel
- retire pieces one at a time
- defer work
e.g. Move gradually for example in the context of which language or stack to use, or when to migrate a system
Related ideas: staged rollout, strangler pattern, incremental migration, hybrid architecture.