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ERD · ETL PROCESS

ETL Process Entity Relationship Diagrams

Find real-world entity relationship diagrams (ERDs) for ETL processes, used in data warehousing and integration projects. Whether you're extracting from APIs, transforming with business logic, or loading into a data warehouse, these visual examples help you model your pipeline.

4 EXAMPLES· UPDATED 2026-08-07
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ABOUT

About these examples.

Each diagram captures the entities, relationships, and data flows involved in extract, transform, load workflows. Use them as templates, inspiration, or a starting point for your own design.

Ready to create your own? Plug your pipeline logic into our AI diagram generator and watch it build a clean ERD for you in seconds.

HOW TO

Make one yourself.

  1. 1

    Define sources and targets

    Identify all source systems (databases, APIs, files) and the target data warehouse or data lake.

  2. 2

    Model extraction entities

    Create entities representing raw data tables or staging areas where data is first landed.

  3. 3

    Design transformation logic

    Add entities and relationships that capture data cleansing, enrichment, aggregation, or business rules.

  4. 4

    Map the load phase

    Connect transformation outputs to final destination tables, showing the full pipeline.

  5. 5

    Customize and share

    Adjust colors, labels, and notes, then export or embed your diagram for team collaboration.

FAQ

Frequently asked questions

What entities are typically included in an ETL process ERD?01
You'll usually see source tables, staging areas, transformation steps (like lookups, mappings, or aggregations), and final dimension and fact tables in the target data warehouse.
Can I link multiple data sources in one diagram?02
Absolutely. You can model multiple extraction paths, combine them in transformation entities, and load into a unified target schema.
How do I show data transformations in an ERD?03
Use intermediate entities to represent transformation operations, add attributes for business rules, and use relationship labels to indicate data flow or logic.
Is this ERD suitable for cloud ETL pipelines (AWS Glue, Azure Data Factory)?04
Yes, the entity relationship model is platform-agnostic. You can adapt it to any ETL tool by adding service-specific notes or icons.
Can I collaborate with my team on an ETL ERD?05
Yes, our diagram maker supports sharing via link or embedding, so team members can review and edit together in real time.
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