HelloWorld! An Instructive Case for the Transformation Tool Contest

TL;DR

This paper presents a set of primitive transformation tasks designed as an instructive case for the Transformation Tool Contest, aimed at helping beginners learn fundamental model operations and compare transformation languages.

Contribution

It introduces a comprehensive, beginner-friendly case covering core CRUD operations and simple transformations to facilitate learning and evaluation of transformation tools.

Findings

Provides a clear set of primitive transformation tasks

Facilitates comparison of transformation languages for beginners

Highlights the importance of basic operations in model transformations

Abstract

This case comprises several primitive tasks that can be solved straight away with most transformation tools. The aim is to cover the most important kinds of primitive operations on models, i.e. create, read, update and delete (CRUD). To this end, tasks such as a constant transformation, a model-to-text transformation, a very basic migration transformation or diverse simple queries or in-place operations on graphs have to be solved. The motivation for this case is that the results expectedly will be very instructive for beginners. Also, it is really hard to compare transformation languages along complex cases, because the complexity of the respective case might hide the basic language concepts and constructs.