The dwarf sees farther than the giant, when he has the giant's shoulder to mount on. Samuel Taylor Coleridge, 1828
The development of Postvorta was only possible due to the availability of the following open source libraries:
 | GATE Mímir |
|---|---|
| GATE Mímir is a multi-paradigm information management index and repository which can be used to index and search over text, annotations, semantic schemas (ontologies), and semantic meta-data (instance data). It allows queries that arbitrarily mix full-text, structural, linguistic and semantic queries and that can scale to gigabytes of text. | |
 | GATE Embedded |
| GATE Embedded is designed to allow you to embed language processing functionality in diverse applications. In fact this code is probably present in more applications that deal with human language than any other, and this widespread usage and long development history means that it is stable, efficient and comprehensive. | |
 | Apache Tomcat |
| Apache Tomcat is an open source software implementation of the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed under the Java Community Process. | |
 | Sitemesh |
| SiteMesh is a web-page layout and decoration framework and web- application integration framework to aid in creating sites consisting of pages for which a consistent look/feel, navigation and layout scheme is required. | |
 | Jawr |
| Jawr is a tunable packaging solution for Javascript and CS |