# A platform team is launching a contract program across eight pipelines that have run for years witho Canonical URL: Domain: Pipeline Design ยท Difficulty: medium ## Problem A platform team is launching a contract program across eight pipelines that have run for years without one. Compose the program. Each contract is enforced in producer CI and at the ingestion gate; the five pillars are monitored on each curated table; operational and quality SLAs are stated separately with separate paging paths; thresholds are tuned against 90 days of history; the legacy rollout follows the four-step pattern (document, inventory, observe, enforce versioned). Show one representative pipeline on the canvas with every piece wired so the program is operable on day one. ## Related - [All practice problems](https://datadriven.io/problems) - [Mock interview mode](https://datadriven.io/interview/a-platform-team-is-launching-a-contract-program-across-eight-e966ecd6) - [System Design Interview Questions](https://datadriven.io/data-engineering-system-design) - [Data Engineering Interview Prep Guide](https://datadriven.io/data-engineer-interview-prep) - [Daily Challenge](https://datadriven.io/daily) --- Source: DataDriven (https://datadriven.io). 100% free data engineering interview prep. Live code execution against Postgres 16, Python 3.11, and Spark sandboxes. No paywall, no premium tier, no signup gate.