1. Graphixa.ai: The Semantic Orchestrator
Graphixa handles the "Life of the Data" during the move. It is not a database conversion tool; it is a controlled movement tool.
Semantic ETL: It ensures that if a legacy field represents
net_revenue, it lands in a target column defined asnet_revenue, even if the technical names are different.Lineage & Provenance: It creates an audit trail. If a record is corrupted during the move, Graphixa can tell you exactly which file it came from and which rule was applied to it.
Governance: It acts as a gatekeeper, preventing "data drift" by validating every record against the central ontology before it is loaded into the new cloud DB.
2. Schema Conversion Tools: The Mechanical Labor
Tools like AWS SCT or Google Cloud SQL Workbench are purely technical. They are designed for "Lifting and Shifting" the house, not rearranging the furniture.
DDL Translation: They turn Oracle
CREATE TABLEscripts into Snowflake or BigQuery syntax.No Semantics: They don't know if a column contains a "Customer ID" or a "Social Security Number"; they only care if it's a
VARCHARor anINTEGER.No Visibility: Once the schema is converted, these tools' jobs are done. They don't track the data that actually flows into those tables.
3. Human Experts: The Strategic Architects
Since Graphixa is Rule-Based and not "Magical AI," it has limits. Human experts are required to bridge the gap where rules cannot reach.
Complex Redesign: Humans handle the heavy lifting of turning procedural PL/SQL logic into modern, cloud-native SQLScript or Python.
Performance Tuning: While Graphixa generates valid SQL Upserts, a human expert optimizes those queries for maximum speed and minimum cost in the cloud.
The "Final Word": Humans make the "Cutover Decisions"—determining when the new system is functionally equivalent to the old one and safe for production.
How they work together in a Workflow
Schema Tools create the empty "shell" in the new Cloud DB (Mechanical).
Human Experts define the Ontology in Graphixa.ai, telling it what the business concepts are (Strategic).
Graphixa.ai orchestrates the actual data load, matching source data to the new schema using the ontology, and logging every event for lineage (Semantic).
Humans review any "Rejected Batches" from Graphixa.ai's error feedback loop to refine the migration rules (Iterative).
Would you like me to create a checklist for a "Pilot Migration" using this three-tiered approach?A pilot migration is the "stress test" that proves your three-tiered strategy works before you commit the entire enterprise dataset. Using Graphixa.ai as the semantic orchestrator, alongside mechanical schema tools and human expertise, ensures that you aren't just moving data—you're moving meaning.
Structured checklist for your Pilot Migration:
Phase 1: Preparation & Setup (The "Shell")
Goal: Create the technical destination and the semantic rules.
[ ] Mechanical: Run the Schema Conversion Tool to generate DDL for a specific subset of tables (e.g., "Customer" and "Transactions" domains).
[ ] Semantic: Define the Ontology in Graphixa.ai for this pilot scope (semantic types like
customer_id,trans_date).[ ] Human: Review the converted schema. Does the DDL align with the cloud destination's best practices (clustering keys, partition logic)?
[ ] Human: Finalize the "Source of Truth" definitions with business owners to ensure the Graphixa ontology is accurate.
Phase 2: Orchestration & Mapping (The "Brain")
Goal: Link the source to the target without hard-coding.
[ ] Semantic: Perform Bidirectional Mapping in Graphixa.ai. Map legacy CSV/DB headers to the ontology and the new cloud columns to the same ontology.
[ ] Human: Manually validate "low-confidence" matches. If Graphixa isn't sure if
C_UIDiscustomer_id, an expert must confirm.[ ] Semantic: Select the Type-Aware Transformation rules (e.g., "Legacy Date to ISO 8601") for the pilot data.
[ ] Human: Identify any complex procedural logic (old triggers/stored procs) that the rule-set cannot handle; mark these for manual redesign.
Phase 3: Execution & Feedback (The "Heartbeat")
Goal: Run the data through the pipes and monitor for clogs.
[ ] Semantic: Execute the Batch Load. Use Graphixa to generate and run the SQL Upserts for the pilot records.
[ ] Mechanical: Monitor the cloud DB's ingestion performance. Is the bulk loader hitting any technical bottlenecks?
[ ] Semantic: Review the Error Feedback Loop. Did Graphixa reject any rows? (e.g., a "text" value found in a "numeric" semantic field).
[ ] Human: Perform "Root Cause Analysis" on rejected rows. Is the issue in the source data, the ontology definition, or the transformation rule?
Phase 4: Validation & Lineage (The "Audit")
Goal: Prove that the data arrived correctly and is traceable.
[ ] Semantic: Generate a Lineage Report in Graphixa.ai for a sample of migrated records. Can you trace
Record #502from the Cloud DB back to the original legacy row?[ ] Human: Conduct Functional Validation. Do the pilot reports in the new system match the numbers in the legacy system?
[ ] Human: Perform Performance Tuning. Does the new SQLScript (redesigned by humans) run faster than the legacy code?
[ ] Strategic: Make the Go/No-Go Decision for the full-scale migration based on the pilot's error rates and lineage accuracy.
Would you like me to focus on a specific "Failure Scenario"—such as how Graphixa handles a mapping error during the pilot—to see the feedback loop in action?