Activity-Based Accounting (ABA) is a modern costing approach that offers a more accurate and insightful perspective on the allocation of costs within an organization. Unlike traditional costing methods that often rely on broad averages and arbitrary cost allocations, ABA focuses on identifying and understanding the specific activities that drive costs in a business process. By analyzing these activities, ABA aims to provide a clearer understanding of how resources are utilized and how costs are incurred across different products, services, or customer segments.