An assessment center and a development center use the same core methodology, including behavioral simulation exercises, trained assessors, and competency-based observation, but they serve fundamentally different purposes. An assessment center is designed for organizational decision-making: it produces objective evaluation data that informs hiring, promotion, succession planning, and talent classification decisions. A development center, by contrast, is designed for individual growth: it uses simulation exercises to generate rich, behaviorally specific feedback that helps participants understand their strengths, identify competency gaps, and create actionable development plans. Many organizations use both: assessment centers for talent decisions and development centers for accelerating the growth of identified talent.