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# Appendix  ### Systems that capture data, code, workflows, and article provenance  * [Mathematica](http://www.wolfram.com/mathematica/)   * [iPython Notebooks](http://ipython.org/notebook.html)  * [Mathematica](http://www.wolfram.com/mathematica/)  * [Github](http://github.com)  * [Authorea](https://authorea.com)  * [Dexy](http://dexy.it)  * [Taverna](http://www.taverna.org.uk/)  * [Wings](http://www.wings-workflows.org/)  * [Kepler](https://kepler-project.org/)   * [VisTrails](http://www.vistrails.org/index.php/Main_Page)