Data Science Workflow

📘 Data Science 👁 55 views 📅 Nov 14, 2025
⏱ Estimated reading time: 1 min

Introduction

The Data Science workflow describes the step-by-step process followed to solve a real-world problem using data.

1. Problem Definition

Identify the business problem. Example: Predict customer churn.

2. Data Collection

  • Databases (SQL)
  • APIs
  • Web scraping
  • Sensor or log data

3. Data Cleaning

Remove duplicates, handle missing values, fix errors.

4. Exploratory Data Analysis (EDA)

  • Understand data distribution
  • Detect outliers
  • Find relationships between features

5. Feature Engineering

Create new useful features from raw data.

6. Model Building

Use algorithms like Linear Regression, Decision Trees, KNN, etc.

7. Model Evaluation

  • Accuracy
  • Precision & Recall
  • Confusion Matrix
  • ROC-AUC Score

8. Deployment

Deploy using Flask, FastAPI, AWS, Azure, or Docker.

Conclusion

The workflow ensures a structured way to deliver reliable Data Science solutions.


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