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HEALTHCARE — GLOBALData Engineering
1,000+
ANALYSTS ENABLED — SELF-SERVICE AT PETABYTE SCALE

Data Liberation Analytics

Global Healthcare Organization — Technology & Platforms · 2023

[THE CHALLENGE]

1,000 Analysts. Zero Self-Service.

A global healthcare organization with a petabyte-scale data environment had a critical bottleneck: every data request required engineering involvement. Over 1,000 analysts across clinical, operational, and commercial functions needed data access — but every query went through a central data engineering team, creating a backlog measured in weeks, not days.

The data platform — built on MAPR with Apache Hive and HBase — was powerful but inaccessible to non-technical users. Schema complexity, access control gaps, and the absence of a semantic layer meant analysts couldn't self-serve even simple queries. The engineering team spent the majority of their time fielding ad hoc requests instead of building.

The organization needed to democratize access to its petabyte-scale data estate without compromising governance, security, or data quality standards.

Enable 1,000+ analysts to access petabyte-scale data independently — without compromising governance, lineage, or data quality — and eliminate the engineering bottleneck entirely.

[OUR APPROACH]

Four Phases.
Total Liberation.

PHASE 01
Platform Architecture Assessment
Full audit of the MAPR / Apache Hive / HBase environment — schema catalogue, table usage frequency analysis, access pattern mapping, and data quality baseline. Identified 340+ actively queried tables, 30+ Enterprise Communities of Practice, and 12 distinct analyst personas with different access and complexity needs. Designed the semantic layer architecture and access model before any build began.
Platform AssessmentUsage AnalysisPersona Mapping
PHASE 02
Governed Data Mesh Design
Designed a domain-oriented data mesh aligned to 30+ Enterprise Communities of Practice — including OpeX, Quality, EPMO, and others — each with a designated domain owner and quality SLA. Data contracts defined per community. Apache NiFi pipelines built for cross-domain data movement with full lineage tracking. Access policies designed per community × analyst persona matrix.
Data MeshApache NiFiData ContractsData Governance
PHASE 03
Self-Service Layer Build
Datameer deployed as the self-service analytics layer — connecting directly to the governed data mesh with row-level and column-level access enforced at the platform layer. Curated data models published as semantic tables with business-friendly naming, calculated metrics, and embedded data definitions. Training programme delivered to 1,000+ analyst users across 6 regions.
DatameerSemantic LayerRBACColumn-Level Security
PHASE 04
Governance Operating Model
Established a Data Governance Council with domain stewards, quarterly access reviews, and a formal data request process for non-standard access. Data catalogue published and maintained — 340+ tables documented with owner, quality rating, refresh frequency, and usage statistics. Engineering team backlog eliminated within 60 days of platform go-live.
Data CatalogueGovernance CouncilAccess Reviews
[KEY OUTCOMES]

The Results.

1K+
Analysts Enabled
Over 1,000 analysts across 6 regions gained governed self-service access to petabyte-scale data within 90 days.
0
Eng. Backlog at Day 60
Central engineering team's ad hoc data request backlog eliminated within 60 days of platform go-live.
340+
Tables Documented
Full data catalogue published covering all 340+ active tables — owner, quality rating, refresh frequency, usage stats.
30+
Communities of Practice
Enterprise Communities of Practice — including OpeX, Quality, EPMO, and more — each with a designated domain steward and governance SLA.

The engineering team shifted from a data access bottleneck to a platform capability team — building new capabilities instead of fulfilling repetitive query requests. Analyst autonomy increased from near-zero to full self-service within a governed framework.

[TECHNOLOGY USED]

Stack.

CORE PLATFORM
MAPRApache HiveHBaseApache NiFi
SELF-SERVICE & SEMANTIC LAYER
DatameerColumn-Level SecurityRow-Level SecuritySemantic Tables
GOVERNANCE
Data Catalogue (custom)Apache Atlas (lineage)Data Mesh Architecture
[EXPLORE MORE IMPACT]
OPERATIONS · DATA ENGINEERING + ANALYTICS
KPI Engine & Global Standard Dashboard —
30,000+ Man-Hours Saved
Medallion architecture consolidating 300+ dashboards into a single governed Power BI environment across 130+ enterprise clients.
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