data-contracts

id	SKL-data-DATACONTRACTS
name	Data Contracts
description	A Data Contract is a formal agreement between a data producer (e.g., a microservice) and a data consumer (e.g., a data platform) that defines the structure, semantics, and quality of data being shared
version	1.0.0
status	active
owner	@cerebra-team
last_updated	2026-02-22
category	Backend
tags	["api","backend","server","database"]
stack	["Python","Node.js","REST API","GraphQL"]
difficulty	Intermediate

Data Contracts

Skill Profile

(Select at least one profile to enable specific modules)

• DevOps
• Backend
• Frontend
• AI-RAG
• Security Critical

Overview

A Data Contract is a formal agreement between a data producer (e.g., a microservice) and a data consumer (e.g., a data platform) that defines the structure, semantics, and quality of data being shared. It acts as a "service-level agreement" (SLA) for data.

Core Principle: "Data should be treated as a product, and products need specifications."

Why This Matters

• Stability: Contract ensures stable data interfaces
• Quality: Schema validation prevents data quality issues
• Accountability: Contract violations are tracked and addressed
• Efficiency: Clear specifications reduce development time
• Security: Contract terms protect sensitive data

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Core Concepts & Rules

1. Core Principles

• Follow established patterns and conventions
• Maintain consistency across codebase
• Document decisions and trade-offs

2. Implementation Guidelines

• Start with the simplest viable solution
• Iterate based on feedback and requirements
• Test thoroughly before deployment

Inputs / Outputs / Contracts

• Inputs:
  • Schema definitions
  • Data events and messages
  • Quality requirements
  • SLA definitions
• Entry Conditions:
  • Schema is defined
  • Validation rules are established
  • Monitoring is configured
• Outputs:
  • Validated events
  • Contract violations
  • Quality reports
  • SLA compliance data
• Artifacts Required (Deliverables):