T-Lib provides a library of functions for queueing-theory calculations for use in Microsoft Excel, and also other environments. T-Lib allows users to develop their own planning and management spreadsheets that make use of a wide range of stan


The majority of users of T-Lib use T-Lib with Excel. Spreadsheets are created by call-centre planners, and then distributed to managers and supervisors. Some planners also create complex spreashseets using T-Lib for particular planning tasks.

Visual Basic

T-Lib can also be used with Visual Basic programming projects. A sample application is provided showing how to incorporate T-Lib into a VB project.

Borland Delphi

T-Lib may also be used with Borland Delphi (Pascal) programming projects. A sample Delphi application is provided.