Data Platform Architecture Diagram Template

flowchart LR
    subgraph Sources
        S1[(Application databases)]
        S2[Application logs]
        S3[Third-party APIs]
    end
    subgraph Ingestion
        C1[CDC replication]
        C2[Log collection]
        C3[Scheduled pulls]
    end
    subgraph Storage and compute
        L[(Data lake / raw zone)]
        B[Batch processing]
        R[Stream processing]
        W[(Data warehouse)]
    end
    subgraph Serving
        API[Data APIs]
        BI[BI dashboards]
        ML[Model training]
    end
    S1 --> C1 --> L
    S2 --> C2 --> L
    S3 --> C3 --> L
    L --> B --> W
    L --> R --> W
    W --> API
    W --> BI
    W --> ML

Draw a data platform architecture diagram in Mermaid flowchart LR syntax with subgraph layers: Sources (application databases, application logs, third-party APIs), Ingestion (CDC replication, log collection, scheduled pulls), Storage and compute (data lake raw zone, batch processing, stream processing, data warehouse), Serving (data APIs, BI dashboards, model training). Each source goes through its ingestion method into the data lake, the lake feeds batch and stream processing into the warehouse, and the warehouse serves the three consumers. Use cylinder nodes for databases, the lake and the warehouse. Output only the mermaid code block.