After installing Xray, there are basically two steps you need to make or ensure before starting using it.
Configure Requirements and Defects
In JIRA's administration, in the "Add-ons" tab, go to "Issue Type Mapping" and configure what issue types should be considered as "requirements" and "defects".
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See the specific Issue Type Mapping page or take a look at the extensive Administration Settings, if you want to fine tune Xray for JIRA or adapt it to your own specific needs.
Enable Xray in your projects
You can enable Xray for your existing projects or create a new project with the "standard" issue types and also the Xray issue types.
For existing projects, in the project Administration page, in the top right side "Actions" menu, you can:
a) set your project as a requirements project, by choosing "Enable Xray Requirement Coverage", so their requirements may be covered by tests;
b) or you can add Xray issues (i.e. Test, Test Set, Test Execution, Test Plan) to a project.
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If instead you want to quickly create a new project and use it to manage everything (e.g. requirements, defects, tests), in the JIRA's Administration page for Projects, in the creation dialog choose "Xray Test Project".
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