Time Driven Activity Based Costing

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Time Driven Activity-Based Costing
Conventional Activity Based Costing (CABC) was first introduced by Robert Kaplan and Robin Cooper in the late 1980s through a series of papers published in the Harvard Business Review. The method aimed to correct deficiencies with the standard cost systems; the systems which attempted to cram all of a company’s costs into three broad categories – labor, materials, and overhead (Kaplan, 2007, p. 15). Such a system lacked the resiliency and versatile data management that was necessary to adapt to market demand changes that came with the twentieth century. While businesses improved to meet the market demands with services such as increased product variety, smaller order sizes, direct delivery, and specialized technical support, their traditional cost systems could not support efficient resource allocation for the rising costs to provide all those services. CABC sought to fix these issues. Cooper and Kaplan’s ABC system improved efficiency by assigning costs down to the product/orders level, enabling managers to better recognize where money was being wasted and where it needed to be invested. The basic model looked like this:
Surveys -> Activity Costing -> Object Costing -> Resource Allocation
It was an attractive system that added long term improvements; yet it had an adoption rate <50% because of certain pitfalls. The conventional ABC system worked well for a limited settings – such as a small firm or one department – however it became unnecessarily complicated for multiple facilities. This was because: (1) it was time-consuming and tedious data had to be collected from all employees regularly, (2) surveying, data storage, data processing, and data reporting was expensive, and (3) the system was n...

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...significantly different from the private sector (Kaplan, 2007, p. 198). TDABC enables a program to meet the accountability of the management to guide expansions, manage budgets, and improve service while avoiding the difficulties posed by the Conventional Accounting Based Costing – which in this case was largely about surveying academics.
TDABC has many improvements in comparison to the conventional ABC system that was created in the 1980s. Rather than simplifying its complex business for the sake of fitting into a Conventional Accounting Based Costing, Time-Driven Accounting Based Costing enables the company to accept complexity and use it for accurate resource allocation and thus, reduction of cost and improvement of service. It is no doubt a powerful tool for a variety of industries, and I would love to be able to use it in a healthcare setting in the future.

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