How EltegraAI Works

Most AI tools generate code from assumptions.
EltegraAI extracts what your system actually does first — then rebuilds it

Unlike most AI-based modernization tools that rely on semantic search and probabilistic retrieval, EltegraAI builds a dependency-linked knowledge graph representing the actual structure and behavior of the application. This eliminates the gaps and inconsistencies inherent in competing approaches and enables complete reconstruction of enterprise system intent — even for multi-million-line codebases — achieving 99.9%+ accuracy.

Legacy Analysis
Extract

We read your existing system and map every rule, exception, and edge case — before a single line of new code is written. The system tells us what it does. Not what it was supposed to do.

12 legacy languages supported COBOL · RPG · PowerBuilder · Perl · SAP · and more
Knowledge Graph
Freeze Intent

Business logic is extracted into a patent-pending deterministic knowledge graph — locked and verified before rebuild begins. This is what separates EltegraAI from tools that guess.

99.9%+ accuracy vs. 60–75% with LLM-only tools · Patent pending US 63/848,151
Code Generation
Rebuild

Clean, production-ready code generated from verified intent — in your target language and architecture. No hallucinations. No missing edge cases. No 18-month surprises.

18.5 months → 3.5 months One brief generates 8,400+ test cases automatically

Why this matters

Other tools generate code from intent.
We verify intent before writing a single line

Every legacy system contains decades of edge cases, exceptions, and undocumented rules.
LLM-based tools guess at these — and get them wrong 25–40% of the time. EltegraAI's patent-pending knowledge graph locks every rule before code generation begins. That's the difference between a rewrite that works and one that fails in production

99.9%

accuracy vs. 60–75% with LLM-only tools

Legacy  ·  3270 Terminal Session (BEN015)
Modern  ·  React UI generated by EltegraAI
BEN015   EMPLOYEE BENEFIT INQUIRY      CICS / PROD
04/15/24   10:42:17
------------------------------------------------------------------------
EMP ID . . . . :104782
NAME . . . . . :SMITH, MARGARET A.
EARN NUMBER . :ACCT0204
PROV BN . . . :PRV-482
BENEFIT CYCLE :04/2024
SPECIAL CODE :---
------------------------------------------------------------------------
BENEFIT ACCRUAL BY AREA
AREA UNITS AMOUNT
AREA 1 (MEDICAL) . . MED-A 12.00 486.00
AREA 2 (DENTAL) . . DEN-B 4.50 162.75
AREA 3 (VISION) . . VIS-A 2.00 58.40
--------
ACCRUED TOTAL . . .707.15

ELIGIBILITY . . . .PASSED
CPS BYPASS . . . .NO
--------
PAYABLE BENEFIT . .707.15

MESSAGE: BEN015-I REGISTRATION LINE WRITTEN (REG-LINE-2='B')
------------------------------------------------------------------------
PF1=HELP   PF3=EXIT   PF5=REFRESH   PF7=PREV   PF8=NEXT   PF12=CANCEL
Payroll Benefits Calculation
AR
Alice Reyes · Benefits Admin
Employee benefit calculation
Review accrued benefits and approve the monthly disbursement for this employee.
MS
Margaret A. Smith
Employee #104782 · Plan PRV-482 · Cycle April 2024
● Eligible ● Standard rules
Earnings record
Verified
Provider match
PRV-482
Special handling
None applied
Medical MED-A
12.00 units $486.00
Dental DEN-B
4.50 units $162.75
Vision VIS-A
2.00 units $58.40
Accrued total $707.15
Payable benefit · April 2024
USD707.15
Calculated from rules BR-001 – BR-008 · audit ID 2024-04-104782
Same data  ·  Same rules  ·  Designed for the user, not the operator
Legacy modernization:  18.5 months  3.5 months  with EltegraAI

See it on your codebase

Book a 30-minute session and we'll show you what EltegraAI extracts from your system