Data engineering · Migration controls · Analyst operations · 2026
Procurement Data
Modernization Workbench
An end-to-end migration control workbench for validating records, resolving exceptions, and assembling release evidence.
Built independently from official public World Bank procurement records. It does not access STEP, private data, or internal World Bank systems.
The operational mandate
What must happen before migrated procurement records can be released?
Procurement notices and contract awards arrive through different structures, naming conventions, and levels of completeness. A successful load count alone cannot prove that relationships, financial meaning, or source lineage survived the move.
I designed the workbench as an operating surface for the people responsible for that decision. It moves one bounded migration from ingestion through validation, specialist review, acceptance testing, and controlled release—with the evidence for each step attached.
Verified operating scope
One bounded migration, carried through the complete control journey.
The interface connects run evidence, decision state, and release criteria in one operating flow. Backend review APIs enforce state and rationale requirements; UAT executions persist as separate evidence records.
Control architecture
Five evidence layers connect source ingestion to release.
Each layer answers a different control question and leaves behind evidence that can be inspected without trusting the interface at face value.
- 01Source evidence
Official responses, source links, retrieval timestamps, schemas, and checksums remain recoverable.
- 02Versioned mappings
Machine-readable contracts define every source-to-target field rule and retain their fingerprints with each run.
- 03Curated records
Validated notices and awards enter explicit relational grains; excluded records remain quarantined with reasons.
- 04Analyst decisions
Specialists investigate raised exceptions, assign accountability, record rationales, and preserve every state change.
- 05Release evidence
Reconciliation, decision completion, executable UAT, sign-off, and rollback evidence determine readiness.
Transformation lineage
One award, traced through a pinned mapping contract.
{
"projectid": " p166309 ",
"contr_sgn_date": "29-Jul-2026",
"total_contr_amnt": "1285000"
}DQ-002 + DQ-004
{
"project_id": "P166309",
"signed_date": "2026-07-29",
"amount": 1285000.00
}Quality and reconciliation
Every record must be accounted for—even when it cannot be loaded.
The run proves that records read equal records loaded, quarantined, and technically rejected. Every exclusion retains its source payload, control reason, and disposition.
Preserve and quarantine
Retain original value
Retain and retrieve later
Compare official sources
Analyst decision workflow
A quality signal becomes an accountable human decision.
Analysts can search the queue, inspect official evidence, assign ownership, begin review, select a disposition, and explain their reasoning. The release counter, case state, checklist, and audit history update from the same decision.
Madagascar · DQ-008 · Medium priority
- 01Assign
Name the accountable specialist.
- 02Investigate
Compare source and related evidence.
- 03Decide
Record disposition and substantive rationale.
Actor, timestamp, state transition, evidence, and rationale remain reconstructable.
Evidence retrieval
Retrieve supporting evidence, cite the source, or explicitly stop.
A FastAPI service embeds each query with a real sentence-transformer model and searches PostgreSQL with pgvector. Every result retains its official source URL; unsupported queries abstain.
P166309 · Pakistan · official source retained
No indexed evidence means no generated answer.
Executable UAT
Acceptance is executed, fingerprinted, and signed—not asserted.
The release owner runs four versioned scenarios against the current migration evidence. Expected and observed results, tester, environment, run ID, timestamps, and a SHA-256 fingerprint are persisted. Failed executions cannot be signed off.
Deployed system
The prototype now runs as a cloud-oriented service.
The portfolio interface is deployed separately from the API and vector database, mirroring the boundaries a delivery team would manage across product, backend, data, and release operations.
The migration is not complete when the pipeline finishes. It is complete when a specialist can explain what moved, what did not, why each exception was handled, and what evidence supports release.