Incrementally executing model transformations offers several benefits such as updating
target models in-place (instead of creating a new copy), as well as generally propagating …

To cope with the increased complexity of systems, models are used to capture what is
considered the essence of a system. Such models are typically represented as a graph …

As systems evolve, analysis results based on models of the system must be updated, in
many cases as fast as possible. Since usually only small parts of the model change, large …

Model transformation languages (MTLs) are domain-specific languages tailored to express
model-to-model transformation programs. They typically offer higher-level syntactic …

Software models raise the level of abstraction of software artefacts involved in the design,
implementation and testing phases of software systems. Such models may be used to …

Model transformation tools have reached a considerable level of maturity in the core
features, and are currently developing in many directions. Some tools are focusing on …

Incremental model queries are a key solution to apply model-driven engineering to rapidly
evolving models. This paper describes alternative solutions to the live competition of the …

This report contains an analysis of the queries defined in the SIGMOD 2014 Programming
Contest. We first describe the data set, then present the queries, providing graphical …

The graph data model is an important tool for modelling complex, highly interconnected data
sets as the human mind tends to model the world as objects (nodes) and their relationships …

Graphs are increasingly important for modelling and analysing connected data sets.
Traditionally, graph analytical tools targeted global fixed-point computations, while graph …