Two Visual Basic programs are included with the report, both with full source code and material for installation. The full source code is in the project files, but for convenience the code for the interactive subroutines are included in Appendix V. The first of these, GRSI.exe, demonstrates the two recommended implementations of the Fuzzy Traffic Light Method, pie charts and stacked bars. This can be used to familiarise users with these types of representation and to aid in selecting which is the better choice. The program contains two slider bars to adjust both the value of an Indicator and its weight. It is also possible to convert the fuzzy lights to standard ones.

The second program, Combine.exe, shows how two Indicators can be combined using the algorithm described in Appendix I. The program uses two sets of sliders to adjust the values and weights of the two Indicators, and a third chart shows the resulting integrated value. Note that while the Indicators are always represented with no more than two colours, the combined value can show all three.

An Excel 97 spreadsheet called Combine.xls is also included. This shows how a larger number of Indicators (11 in all) can be combined.

Both Combine.exe and Combine.xls display both the mean Score and Discord of a combination of Indicators. This can be used to examine both the way that fuzzy traffic lights are integrated and defuzzified, and the way that uncertainty, represented by the Discord value, reflects differences in the constituent Indicators.

A short PowerPoint segment, FTLM.pps, provides an introduction to the concept of fuzzy traffic lights and can be used as a briefing tool.

Finally, an animated GIF called slider.gif shows how a two-colour traffic light can be used to represent an Indicator. To view this, open the web page Slide.html in a browser window.

All material on this site copyright 2002-2005 by William Silvert unless otherwise indicated. This page was last updated on 10 November 2005 .