Description

This curriculum spans the design and operationalization of a metadata repository comparable to a multi-workshop technical advisory engagement, covering architecture decisions, integration patterns, governance workflows, and advanced use cases like AI/ML pipeline alignment.

Module 1: Defining Metadata Repository Architecture and Scope

Select whether to implement a centralized, federated, or hybrid metadata repository based on organizational data distribution and ownership models.
Determine the classification of metadata types (technical, business, operational, and social) to be ingested based on current data governance maturity.
Choose between open metadata standards (e.g., Apache Atlas types) and proprietary metadata models based on vendor tooling dependencies.
Define metadata lifecycle stages (discovery, registration, deprecation, archival) and assign ownership for each phase.
Evaluate the need for real-time metadata ingestion versus batch synchronization based on SLAs for data discovery.
Map metadata repository access to existing identity providers (e.g., Active Directory, Okta) and define role-based access levels.
Decide whether to expose metadata via APIs for integration with BI tools, data catalogs, or MDM systems.
Assess scalability requirements by projecting metadata volume growth over 3 years based on data source expansion plans.

Module 2: Data Source Integration and Metadata Ingestion

Configure metadata extractors for heterogeneous sources (RDBMS, data lakes, APIs, ETL tools) using JDBC, REST, or native connectors.
Implement change data capture (CDC) for metadata tables to detect schema modifications in source systems.
Handle inconsistent naming conventions across sources by applying normalization rules during ingestion.
Resolve conflicts when the same data asset is registered from multiple tools (e.g., Informatica and dbt).
Set up retry and backoff logic for failed ingestion jobs due to network or authentication issues.
Validate metadata completeness by comparing source system object counts with repository records.
Schedule ingestion frequency based on volatility of source metadata (e.g., daily for static tables, hourly for streaming topics).
Encrypt metadata payloads in transit, especially when pulling from external cloud environments.

Module 3: Metadata Quality and Lineage Tracking

Define lineage granularity: column-level versus table-level, based on regulatory or debugging requirements.
Implement automated parsing of ETL job scripts to extract transformation logic for lineage mapping.
Flag lineage gaps where transformations occur in unmonitored tools (e.g., Python notebooks).
Establish metadata quality rules such as mandatory field descriptions or owner assignments.
Generate data quality scores for metadata completeness and freshness per domain or system.
Reconcile discrepancies between documented lineage and actual data flows observed in logs.
Version metadata changes to enable rollback and audit of previous schema or lineage states.
Integrate with data observability tools to correlate metadata lineage with data pipeline failures.

Module 4: Business Glossary and Semantic Layer Alignment

Define stewardship roles for business terms and assign data owners per domain (e.g., Finance, Sales).
Map technical metadata (column names) to business terms using curated synonym tables or automated matching.
Resolve conflicts when a single business term has multiple technical implementations across systems.
Implement approval workflows for new or modified business definitions before publication.
Link KPIs and metrics in BI tools to business glossary entries to ensure consistent interpretation.
Track usage of business terms in reports and dashboards to identify underutilized or obsolete definitions.
Sync business glossary updates with downstream semantic models in tools like LookML or Power BI.
Localize business terms for multinational organizations while maintaining a single source of truth.

Module 5: Access Control and Metadata Security

Implement row-level and column-level metadata filtering based on user roles or departments.
Mask sensitive metadata fields (e.g., PII column descriptions) in search results and APIs.
Log all metadata access and modification events for compliance auditing and anomaly detection.
Integrate with data classification tools to automatically tag metadata entries as confidential or public.
Enforce least-privilege principles when granting metadata write permissions to data engineers.
Configure secure service accounts for automated ingestion jobs with scoped OAuth tokens.
Apply data residency rules to metadata storage locations when operating in multi-region environments.
Conduct periodic access reviews to deactivate metadata permissions for offboarded users.

Module 6: Search, Discovery, and Recommendation Systems

Configure full-text search indexing for metadata fields (name, description, tags) using Elasticsearch or equivalent.
Implement fuzzy matching to handle typos in search queries for data asset discovery.
Rank search results based on usage frequency, recency, and stewardship status.
Integrate user behavior tracking to personalize search results based on role or past queries.
Surface related assets (e.g., downstream reports) when viewing a table in the metadata UI.
Enable faceted filtering by system, domain, owner, or data classification in discovery interfaces.
Implement auto-suggestions for metadata tagging based on historical patterns.
Measure discovery effectiveness through metrics like search-to-click ratio and abandonment rate.

Module 7: Metadata Governance and Stewardship Workflows

Design approval workflows for metadata changes requiring steward validation (e.g., PII tagging).
Automate reminders for stewards to review outdated or incomplete metadata entries.
Assign data ownership based on system ownership, HR directories, or contribution analysis.
Track governance KPIs such as percentage of assets with documented owners or descriptions.
Integrate with ticketing systems (e.g., Jira) to manage metadata remediation tasks.
Conduct quarterly metadata health assessments and report findings to data governance councils.
Define escalation paths for unresolved metadata disputes between business and technical teams.
Implement metadata deprecation policies to archive unused or retired data assets.

Module 8: Monitoring, Observability, and Performance Tuning

Instrument ingestion pipelines with metrics for latency, success rate, and throughput.
Set up alerts for metadata staleness when expected updates fail to arrive.
Profile query performance on metadata APIs under peak load and optimize indexing strategies.
Monitor storage growth of metadata repository and plan for partitioning or archiving.
Trace end-to-end metadata propagation from source to catalog to identify bottlenecks.
Conduct load testing on search functionality with realistic user query patterns.
Validate backup and recovery procedures for metadata databases to meet RPO/RTO targets.
Optimize caching layers for frequently accessed metadata (e.g., business glossary terms).

Module 9: Integration with Data Governance and AI/ML Pipelines

Expose metadata to ML feature stores to ensure consistent feature definitions and lineage.
Automatically detect candidate features for ML models based on usage and stability metrics.
Integrate data quality rules from metadata into ML pipeline validation steps.
Provide model training lineage by linking datasets used to their metadata and upstream sources.
Enable AI-driven metadata enrichment, such as auto-tagging or description generation, with human-in-the-loop review.
Share data classification tags with AI systems to enforce privacy constraints during model training.
Sync metadata repository with data mesh domain catalogs using standardized exchange formats.
Support audit requirements for AI systems by providing immutable metadata logs for model inputs.