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Sigma-TSI: The Open Sigma Project

Technical Description of Sigma

Sigma is an open source multi-user relational database used to help manage engineering and construction projects.


Sigma has evolved over many years and has many branches in use in different parts of the world. This site is home to the Sigma-TSI distribution.


The most recent Sigma-TSI code is available as Filemaker Clone files on the Sigma-TSI Source Forge page.


Sigma-TSI like all other Sigma branches is distributed under a GNU General Public License.


A full demonstration of the Sigma-TSI distribution and associated DTMS databases can be found by following the links on this site.


For assistance with deploying, customizing or configuring Sigma-TSI contact Taroko.org. Taroko has the expertise to both build and manage your Sigma database, but also has the skill set to help establish the engineering and management processes required by your project.

For more information or if you want to participate in Sigma-TSI Contact Us.