TL;DR

AI is only as good as the data it runs on. Before deploying AI, companies must have centralized data storage, clean and accessible data, data governance policies, and the infrastructure to move data reliably. Skipping this foundation is the most common cause of failed AI deployments.

The Data Infrastructure Stack

Layer 1: Data Sources

Systems that generate data: CRM, ERP, marketing automation, product analytics, customer support, financial systems. Each generates data in different formats, at different frequencies, with different quality levels.

Assessment: Inventory all data sources. Identify which contain data relevant to your AI use cases.

Layer 2: Data Integration (ETL/ELT)

Data from multiple sources must be extracted, transformed, and loaded into a central repository.

Tools: Fivetran, Airbyte (automated connectors), dbt (SQL-based transformation), Apache Kafka (real-time streaming)

Assessment: Do you have automated pipelines moving data from source systems to a central repository?

Layer 3: Data Storage

Data Warehouse: Structured, query-optimized storage for analytical workloads. Options: Snowflake, BigQuery, Redshift, Databricks.

Data Lake: Unstructured and semi-structured data storage for raw data and ML training data. Options: AWS S3, Azure Data Lake, Google Cloud Storage.

Assessment: Do you have a centralized data warehouse? Is it up to date and accessible?

Layer 4: Data Quality

Dimensions: Completeness (all required fields populated?), Accuracy (reflects reality?), Consistency (same entity represented consistently?), Timeliness (data current?)

Assessment: Do you have data quality monitoring? What is your data error rate?

Layer 5: Data Governance

Key components: Data catalog (inventory of all data assets), data ownership assignments, access controls and permissions, data privacy and compliance policies (GDPR, CCPA), data retention policies

Layer 6: ML Infrastructure (for custom AI)

Feature store, model registry, model serving, monitoring tools

The Minimum Viable Data Infrastructure for AI

For most companies deploying off-the-shelf AI tools:

  1. Centralized CRM with clean, complete customer data
  2. Automated data pipelines from key source systems
  3. A data warehouse with historical data (at least 12–24 months)
  4. Basic data governance (ownership, access controls)

Key Takeaways

Key Takeaways
  • AI is only as good as the data it runs on — data infrastructure is the foundation.
  • The data infrastructure stack has six layers: sources, integration, storage, quality, governance, and ML infrastructure.
  • Data quality is the most commonly neglected layer — and the most impactful.
  • Most companies need a centralized data warehouse before deploying AI.
  • Data governance (ownership, access, privacy) is a prerequisite for responsible AI deployment.