As the amount of critical process data increases due to automatic data acquisition systems, two problems present themselves. First, it becomes uneconomic to add sufficient staff to monitor all these processes using control charts, and second, the skill level required to observe and interpret the control charts becomes an ongoing issue of assuring accuracy and consistency via expensive tr...

With the widespread use of computer and network technologies for facilitating access to scholarly journals, a new methodology has emerged for studying journal usage and scholarly information seeking behavior. Computers record or log all user transactions in a plain text file known as a ‘transaction log’. Log files contain data about many of the details of t...