## Traditional GIS Architecture (AKA Enterprise) ```mermaid graph LR subgraph "TRADITIONAL GIS ARCHITECTURE" direction LR subgraph DS["Data Sources & Storage"] direction TB FILES[["File Storage<br/>(Shapefile, GeoPackage,<br/>FileGDB, KML, GML)"]] DATASTORE[["Spatial Database<br/>(PostGIS, Oracle Spatial,<br/>SQL Server, ArcGIS DataStore)"]] end subgraph ETL["Data Processing & ETL"] direction TB ETL_TOOLS[["ETL Tools<br/>(FME, GDAL/OGR,<br/>ArcGIS Data Interoperability,<br/>GeoKettle)"]] end subgraph GIS["GIS Application Servers"] direction TB GEOSERVER[["Map Server<br/>(GeoServer, MapServer,<br/>QGIS Server, Mapnik)"]] ARCSERVER[["Enterprise GIS Server<br/>(ArcGIS Server, GeoMedia,<br/>Hexagon, Bentley Map)"]] end subgraph SVC["Service Layer"] direction TB OGC_SERVICES[["OGC Web Services<br/>(WMS, WFS, WCS,<br/>WMTS, CSW)"]] REST_SERVICES[["REST Services<br/>(Feature Service, Map Service,<br/>Image Service, Geoprocessing)"]] TILE_SERVICES[["Tile Services<br/>(Vector Tiles, Raster Tiles,<br/>TMS, XYZ)"]] end subgraph PCM["Portal & Content Management"] direction TB PORTAL[["Geoportal<br/>(ArcGIS Portal, GeoNode,<br/>GeoNetwork, CKAN)"]] CMS[["Content Management<br/>(ArcGIS Hub, MapStore,<br/>Terria, Geoplatform)"]] end subgraph SEC["Security & Access Control"] direction TB AUTH[["Authentication<br/>(LDAP, Active Directory,<br/>SAML, OAuth 2.0)"]] PROXY[["Reverse Proxy<br/>(NGINX, Apache,<br/>HAProxy, Caddy)"]] FW[["Firewall/WAF<br/>(CloudFlare, AWS WAF,<br/>ModSecurity)"]] end subgraph CLI["Client Applications"] direction TB DESKTOP[["Desktop GIS<br/>(ArcGIS Pro, QGIS,<br/>Global Mapper, MapInfo)"]] WEB[["Web Applications<br/>(Leaflet, OpenLayers,<br/>ArcGIS JS API, Mapbox GL)"]] MOBILE[["Mobile Apps<br/>(ArcGIS Field Maps,<br/>QField, Avenza, Collector)"]] end %% Group-level connections DS --> ETL ETL --> GIS GIS --> SVC SVC --> PCM PCM --> SEC SEC --> CLI %% Edge case: ETL writes back to storage ETL -.->|Updates| DS %% Limitations LIMITS[["LIMITATIONS<br/>Vertical Scaling Only<br/>High Infrastructure Cost<br/>Complex Maintenance<br/>Limited to Terabytes<br/>Vendor Lock-in<br/>Single Point of Failure"]] style LIMITS fill:#ffcccc,stroke:#cc0000,stroke-width:2px style DS fill:#f9f9f9,stroke:#333,stroke-width:2px style ETL fill:#f9f9f9,stroke:#333,stroke-width:2px style GIS fill:#f9f9f9,stroke:#333,stroke-width:2px style SVC fill:#f9f9f9,stroke:#333,stroke-width:2px style PCM fill:#f9f9f9,stroke:#333,stroke-width:2px style SEC fill:#f9f9f9,stroke:#333,stroke-width:2px style CLI fill:#f9f9f9,stroke:#333,stroke-width:2px end ``` ## Cloud-Native Geospatial & Data Lakehouse Architecture ```mermaid graph LR subgraph "CLOUD-NATIVE ARCHITECTURE" direction LR subgraph OSL["Object Storage Layer"] direction TB STORAGE[["Object Storage<br/>(AWS S3, Azure Blob,<br/>Google Cloud Storage,<br/>MinIO, Cloudflare R2)<br/>Petabyte+ Scale"]] subgraph "Cloud-Optimized Formats" direction TB RASTER[["Raster Formats<br/>(COG, Zarr, HDF5,<br/>NetCDF, GeoZarr)"]] VECTOR[["Vector Formats<br/>(GeoParquet, PMTiles,<br/>FlatGeobuf, GeoJSON)"]] POINTCLOUD[["Point Cloud<br/>(COPC, EPT, 3D Tiles,<br/>Potree, LAS/LAZ)"]] end end subgraph TFL["Table Format Layer"] direction TB ICEBERG[["Apache Iceberg<br/>(AWS S3 Tables,<br/>Tabular, Netflix)"]] DELTA[["Delta Lake<br/>(Databricks, UniForm,<br/>Delta Sharing)"]] HUDI[["Apache Hudi<br/>(Uber, CDC,<br/>DeltaStreamer)"]] DUCKLAKE[["DuckLake<br/>(DuckDB Format,<br/>SQL Metadata)"]] end subgraph CAT["Catalog & Governance"] direction TB CATALOG[["Data Catalog<br/>(Unity Catalog, AWS Glue,<br/>Polaris, Nessie, LakeKeeper)"]] STAC[["Geospatial Catalog<br/>(STAC, OGC API Records,<br/>GeoNetwork, CSW)"]] LINEAGE[["Data Lineage<br/>(DataHub, OpenLineage,<br/>Apache Atlas, Alation)"]] end subgraph PRO["Processing Engines"] direction TB BATCH[["Batch Processing<br/>(Apache Spark, Flink,<br/>Ray, Databricks)"]] STREAM[["Stream Processing<br/>(Kafka, Kinesis,<br/>Pulsar, EventHub)"]] SQLENGINE[["SQL Engines<br/>(DuckDB, Trino, Presto,<br/>Athena, BigQuery)"]] GEOPROC[["Geospatial Processing<br/>(GeoPandas, PostGIS,<br/>Sedona, GeoMesa)"]] end subgraph ORC["Compute Orchestration"] direction TB CONTAINER[["Container Platform<br/>(Kubernetes, ECS,<br/>Cloud Run, AKS)"]] SERVERLESS[["Serverless<br/>(Lambda, Functions,<br/>Cloud Functions, Fargate)"]] WORKFLOW[["Workflow Orchestration<br/>(Airflow, Dagster,<br/>Prefect, Argo)"]] end subgraph API["API & Services"] direction TB OGCAPI[["OGC APIs<br/>(Features, Maps, Tiles,<br/>Processes, EDR, DGGS)"]] TILING[["Dynamic Tiling<br/>(TiTiler, pg_tileserv,<br/>Martin, Tegola)"]] GRAPHQL[["Modern APIs<br/>(GraphQL, gRPC,<br/>REST, WebSocket)"]] end subgraph AML["Analytics & ML"] direction TB NOTEBOOKS[["Notebooks<br/>(Jupyter, Databricks,<br/>Google Colab, Observable)"]] MLPLATFORM[["ML Platform<br/>(SageMaker, Vertex AI,<br/>Azure ML, MLflow)"]] WASM[["Browser Computing<br/>(DuckDB-WASM, Pyodide,<br/>Arrow-JS, SQL.js)"]] end subgraph CLA["Client Layer"] direction TB MODERN_WEB[["Modern Web<br/>(MapLibre, DeckGL,<br/>Cesium, Mapbox GL)"]] BI_TOOLS[["BI Tools<br/>(Tableau, PowerBI,<br/>Looker, Superset)"]] NATIVE_APPS[["Native Apps<br/>(Mobile SDKs,<br/>Desktop Apps)"]] end %% Group-level connections OSL --> TFL TFL --> CAT CAT --> PRO PRO --> ORC ORC --> API API --> CLA %% Analytics branch PRO --> AML AML --> CLA %% Edge case: Direct browser access to storage OSL -.->|Direct Access<br/>HTTP Range Requests| AML %% Edge case: Catalog feedback to storage CAT -.->|Metadata Updates| TFL %% Advantages ADVANTAGES[["ADVANTAGES<br/>Horizontal Scaling<br/>Pay-per-Use Pricing<br/>No Vendor Lock-in<br/>Petabyte+ Scale<br/>Separation of Storage/Compute<br/>Open Standards Based"]] style ADVANTAGES fill:#ccffcc,stroke:#00cc00,stroke-width:2px style OSL fill:#e6f3ff,stroke:#333,stroke-width:2px style TFL fill:#f0f8ff,stroke:#333,stroke-width:2px style CAT fill:#fffacd,stroke:#333,stroke-width:2px style PRO fill:#f5f5f5,stroke:#333,stroke-width:2px style ORC fill:#fafafa,stroke:#333,stroke-width:2px style API fill:#f9f9f9,stroke:#333,stroke-width:2px style AML fill:#fff5ee,stroke:#333,stroke-width:2px style CLA fill:#f8f8f8,stroke:#333,stroke-width:2px end ```