Migration Β· for operators & CTOs
Your estate, one
program at a time.
Constat modernizes per program, not per big-bang. Old and new run side by side, equivalence is proven at each step, and you keep control of the pace and the sequence.
The transformation
Two systems.
One proven result.
The original program and its modern twin, held to the same behavior, bracket for bracket, byte for byte.
Across the stack
What we modernize
The data lane is proven hardest. The others are in active development or modernization targets, validated within each engagement. Labelled by real maturity, never oversold.
the lane we test hardest, checked against real data
physical and logical files, keyed access preserved
in active development, validated per engagement
in active development, validated per engagement
modernization target, validated per engagement
z/OS estates (CICS, IMS, VSAM) are in active development, not yet proven. Every lane above is IBM i today, run on real hardware.
The engagement
How a migration looks
Bring a program
Start with one to three programs from your estate. A representative slice, not a big-bang commitment.
We modernize and prove
We convert them, run old and new on the same inputs, and confirm the business state matches.
You get the evidence
Each program ships with an evidence package your team and auditors can inspect on their own.
Roll out at your pace
Old and new coexist. You migrate program by program, with proof at every step.