Java
If you download a platform-neutral Taverna installation, you will need to install Java 7 or higher.
For Oracle’s Java 7 you would have also have to install the Java Cryptography Extension separately.
For OpenJDK 7, you do not need to install the Java Cryptography Extension as it is already included. On Linux, apt-get install openjdk-7-jdk or equivalent is usually sufficient.
GraphViz
If you download the platform-neutral Taverna Workbench installation, it includes binaries of the Graphviz tool, which is used for generating workflow diagrams in Taverna. Binaries are included for OS X, Linux x86/x64 and Windows within the bin folder.
In most cases Taverna should be able to pick up the location of the Graphviz binary dot from the download after you have installed it. If this is not the case, see User guide: Workbench preferences on how to configure the location of dot executable in Taverna Workbench.
