Around 500 words.Harvard professor Robert Kaplan is recognised as one of the ‘founding fathers' responsible for the development of activity-based costing which was widely adopted by manufacturing industry in the 1980's. In the mid 1990s ABC began to lose favour as a number of problems were identified. After reading Kaplan's article titled "Time-Driven Activity-Based Costing" and conducting your own research discuss the following statement. "Activity-Based Costing has no relevance for manufacturing firms in 2011".