In CRISP-DM, which phase focuses on understanding business objectives and constraints?

• A. Business Understanding
• B. Evaluation
• C. Data Preparation
• D. Modeling

Answer: (A)

Business Understanding is the phase focused on understanding business objectives and constraints. In CRISP-DM, you start by clarifying what the business aims to achieve, defining how success will be measured, and identifying any constraints such as budget, timeline, data availability, and regulatory or ethical considerations. This step also involves translating the business problem into a data mining problem and setting the project scope. This alignment matters most because it guides what data you need, which metrics matter, and what would count as a successful outcome, shaping decisions in data collection, feature design, modeling approach, and how results will be evaluated. Other phases focus on data specifics or modeling details—data understanding examines data quality and characteristics, data preparation handles cleaning and organizing data, modeling selects and applies algorithms, and evaluation assesses whether the model meets performance and business criteria.