The diagrams were prepared with the dia package, version 0.88.1-3 from Debian GNU/Linux (woody). The features of dia that were used included;

• snap to grid,
• line width zero,
• vertical alignment of text against enclosures,
• corner radius 0.50 for rectangles,
• colours set to match Diagnosis HOWTO,
• export to PNG.

• acquire screenshot,
• cut to border,
• save as png, maximum compression, interlacing.

The dia source files for the diagrams are available here:

Thank you for your interest. We hope you can use this information.