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Data ScienceJanuary 25, 2026
My Data Science Workflow: From Raw Data to Production ML
A practical guide to my end-to-end workflow for building data science projects that ship.
By Charan Sai Ponnada·workflow, data science, production, best practices, MLOps
Over the years, I've refined a data science workflow that balances speed with rigor.
## Phase 1: Problem Definition
- Define what success looks like
- Identify stakeholders and constraints
- Set clear metrics
## Phase 2: Data Exploration
- Profile data with ydata-profiling
- Visualize distributions and relationships
- Identify data quality issues
## Phase 3: Baseline
- Start with a simple model (linear regression, decision tree)
- Establish minimum viable performance
- Identify signal strength
## Phase 4: Iteration
- Feature engineering cycles
- Model selection and hyperparameter tuning
- Cross-validation strategy
## Phase 5: Productionization
- API development with FastAPI
- Docker containerization
- CI/CD with GitHub Actions
- Monitoring and alerting
## Phase 6: Documentation
- Document decisions and trade-offs
- Model cards and datasheets
- Technical blog posts