Human Usable Textual Notation

HUTN is an OMG standard for storing models in a human understandable format. In a sense it is a human-oriented alternative to XMI; it has a C-like style which uses curly braces instead of the verbose XML start and end-element tags. Epsilon provides an implementation of HUTN which has been realized using ETL for model-to-model transformation, EGL for generating model-to-text transformations, and EVL for checking the consistency of HUTN models.

Features

• Write models using a text editor
• Generic-syntax: no need to specify parser
• Error markers highlighting inconsistencies
• Resilient to metamodel changes
• Built-in HUTN->XMI and XMI->HUTN transformations
• Automated builder (HUTN->XMI)

Examples

• Article: Using the Human-Usable Textual Notation (HUTN) in Epsilon
• Article: Using HUTN for T2M transformation - Article: New in HUTN 0.7.1
• Article: Managing Inconsistent Models with HUTN

Reference

The OMG provides a complete specification of the HUTN syntax.