## Getting Started

JET is a tool for generating one or more files from a model using templates. Templates are a mixture of text and JET commands (know as tags). The tags extract information from a model, and place it into the expanded template. JET then writes the expanded template to the Eclipse workspace. A collection of JET templates is called a transformation. Each transformation is created as a separate JET project.

You can start learning JET by creating a JET project, understanding the structure of a JET project and learning the most common JET tags. JET transformations extract information from an input model via XPath expressions. You can learn the basics of XPath by reading Essential XPath

In order to test your JET transformation, see Running JET Transformations

Once completed, you can share your transformation with others. See Deploying Transformations.