Act as a senior database architect with 10+ years of experience in both SQL and NoSQL systems. Provide a detailed comparison between SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB, Cassandra) databases, focusing on [DATA MODEL], [SCALABILITY], and [USE CASES]. Explain how [TRANSACTION MANAGEMENT] differs between the two, and give real-world examples where one might be preferred over the other. Include pros and cons for each type, and suggest which might be better for [YOUR SPECIFIC PROJECT NEEDS]. Use clear, beginner-friendly language but ensure technical accuracy.