TIME-DRIVEN ACTIVITY-BASED COSTING FOR
INTER-LIBRARY LOANS
In this part of the paper, we thoroughly explain the inter-library
TDABC analysis. To that end, we first briefly describe ILL at
the KULeuven Arenberg library. Then, we present a thorough
activity analysis and derive time equations for each request
activity. Third, we provide an overview of all related ILL costs
and identify the different costs per minute. Based on these time
equations and costs per minute, we finally calculate the cost of
different outgoing and incoming requests.
The activity data for this study were gathered through direct
observation and multiple interviews with both the library
manager and the ILL responsible (cf. Goddard and Ooi5). Cost
data were obtained from the library accountant and other
information was found by means of archival research, which
included inter alia the annual report. All observations were
made during 2006 and all financial data (like wages and
overhead costs) are from 2005.