The Debug folder contains useful tools if you are an IRIS plug-in developer, a person testing IRIS, or a person who needs to create a specialized query of the IRIS knowledgebase.
Data Browser: Allows you to look up an object by URI. Provides all the properties that are defined for that object.
Twinkle: This is an open source application that runs on top of JENA. It allows you to issue a SPARQL query and display the results in different formats. You can also save the query so that you may use it again later. If there is an error in your query, you can view a separate log file to get more detail about the problem. See the Query section earlier in this document for details on query syntax.
Benchmark: Takes an XML file that contains several data items for input, adds these items to the IRIS knowledgebase, and then removes them. Benchmark keeps track of performance measurements while performing these tasks. Typically you would run this test with an empty knowledgebase, then a full knowledgebase, and compare the two results.
XML Server: Allows you to run pre-defined queries and display the results. The queries are available from the Queries menu in the top menu bar of IRIS.