IMA argues that although activity-based costing (ABC) is not a panacea, it is essential for a company to implement a management accounting system such as ABC for all its stakeholdersits employees, its community, its loyal customers, and its shareholdersto understand its cost what activity-based costing is and examine how it impacts the role of management accountants in the broader context of performance management that integrates time, quality, service levels, risk, capacity planning, and costs.