Two software packages are currently available that enable computer users to construct and print sequences that conform to the regulations which control the categories and programmes operated by CIVA.
OpenAero is free aerobatic sequence design software authored by Ringo Massa that runs inside your web browser. It works in almost any desk, laptop, phone or tablet computer operating system that supports internet browsing.
OpenAero software is made available under the terms of the GNU General Public License as published by the Free Software Foundation. It is loosely based on OLAN sequence coding originally published by Michael Golan.
Aresti System software was developed in the early 1990's by Alan Cassidy. It works in conjunction with the graphic and logic capabilities of Microsoft's Visio drawing software package, which must also be present in the users' computer.
Aresti System software can be purchased online from Alan's Freestyle Aviation website. Early versions of Microsoft Visio (from 2002 onwards is required) can often be found on Ebay and other similar auction sites.