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See detailTowards the Propagation of Model Updates along different Views in Multi-View Models
Gottmann, Susann UL; Nachtigall, Nico UL; Ermel, Claudia et al

in Proceedings of the 5th International Workshop on Bidirectional Transformations (2016), 1571

Models are the keystones in model-driven systems development. They describe systems at different layers of abstraction and with a focus to different domains. For each domain, dedicated domain specific ... [more ▼]

Models are the keystones in model-driven systems development. They describe systems at different layers of abstraction and with a focus to different domains. For each domain, dedicated domain specific visual modelling languages are used for model definitions with the idea to separate concerns to different domain experts. This enables precise problem and requirement definitions and should decrease efforts in developing and validating systems. We focus on multi-view models that are in relationship with source models by triple graph grammars. A multi-view model provides different views of the source model at different layers of abstraction but within the same DSL which is typically different from the DSL of the source model. In practice, elements in different views may overlap. We present an informal methodology for consistently propagating updates from one view to the other views and also to the source domain. We motivate our approach by multi-view models in a hospital scenario. [less ▲]

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See detailTriple Graph Grammars in the Large for Translating Satellite Procedures - Extended Version
Hermann, Frank UL; Gottmann, Susann UL; Nachtigall, Nico UL et al

Report (2014)

Software translation is a challenging task. Several requirements are important - including automation of the execution, maintainability of the translation patterns, and, most importantly, reliability ... [more ▼]

Software translation is a challenging task. Several requirements are important - including automation of the execution, maintainability of the translation patterns, and, most importantly, reliability concerning the correctness of the translation. Triple graph grammars (TGGs) have shown to be an intuitive, wellde ned technique for model translation. In this paper, we leverage TGGs for industry scale software translations. The approach is implemented using the Eclipse-based graph transformation tool Henshin and has been successfully applied in a large industrial project with the satellite operator SES on the translation of satellite control procedures. We evaluate the approach regarding requirements from the project and performance on a complete set of procedures of one satellite. [less ▲]

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See detailTriple Graph Grammars in the Large for Translating Satellite Procedures
Hermann, Frank UL; Gottmann, Susann UL; Nachtigall, Nico UL et al

in Theory and Practice of Model Transformations (2014, July)

Software translation is a challenging task. Several requirements are important – including automation of the execution, maintainability of the translation patterns, and, most importantly, reliability ... [more ▼]

Software translation is a challenging task. Several requirements are important – including automation of the execution, maintainability of the translation patterns, and, most importantly, reliability concerning the correctness of the translation. Triple graph grammars (TGGs) have shown to be an intuitive, well-defined technique for model translation. In this paper, we leverage TGGs for industry scale software translations. The approach is implemented using the Eclipse-based graph transformation tool Henshin and has been successfully applied in a large industrial project with the satellite operator SES on the translation of satellite control procedures. We evaluate the approach regarding requirements from the project and performance on a complete set of procedures of one satellite. [less ▲]

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See detailSolving the FIXML2Code-case Study with HenshinTGG
Hermann, Frank UL; Nachtigall, Nico UL; Braatz, Benjamin UL et al

in Rose, Louis M.; Krause, Christian; Horn, Tassilo (Eds.) Proceedings of the 7th Transformation Tool Contest - part of the Software Technologies: Applications and Foundations (STAF 2014) federation of conferences (2014)

Triple graph grammars (TGGs) provide a formal framework for bidirectional model transformations. As in practice, TGGs are primarily used in pure model-to-model transformation scenarios, tools for text-to ... [more ▼]

Triple graph grammars (TGGs) provide a formal framework for bidirectional model transformations. As in practice, TGGs are primarily used in pure model-to-model transformation scenarios, tools for text-to-model and model-to-text transformations make them also applicable in text-to-text transformation contexts. This paper presents a solution for the text-to-text transformation case study of the Transformation Tool Contest 2014 on translating FIXML (an XML notation for financial transactions) to source code written in Java, C# or C++. The solution uses the HenshinTGG tool for specifying and executing model-to-model transformations based on the formal concept of TGGs as well as the Xtext tool for parsing XML content to yield its abstract syntax tree (text-to-model transformation) and serialising abstract syntax trees to source code (model-to-text transformation). The approach is evaluated concerning a given set of criteria. [less ▲]

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See detailModel synchronization based on triple graph grammars: correctness, completeness and invertibility
Hermann, Frank UL; Ehrig, Hartmut; Orejas, Fernando et al

in Software & Systems Modeling (2013)

Triple graph grammars (TGGs) have been used successfully to analyze correctness and completeness of bidirectional model transformations, but a corresponding formal approach to model synchronization has ... [more ▼]

Triple graph grammars (TGGs) have been used successfully to analyze correctness and completeness of bidirectional model transformations, but a corresponding formal approach to model synchronization has been missing. This paper closes this gap by providing a formal synchronization framework with bidirectional update propagation operations. They are generated from a given TGG, which specifies the language of all consistently integrated source and target models. As our main result, we show that the generated synchronization framework is correct and complete, provided that forward and backward propagation operations are deterministic. Correctness essentially means that the propagation operations preserve and establish consistency while completeness ensures that the operations are defined for all possible inputs. Moreover, we analyze the conditions under which the operations are inverse to each other. All constructions and results are motivated and explained by a running example, which leads to a case study, using concrete visual syntax and abstract syntax notation based on typed attributed graphs. [less ▲]

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See detailTowards Bidirectional Engineering of Satellite Control Procedures Using Triple Graph Grammars
Gottmann, Susann UL; Hermann, Frank UL; Ermel, Claudia et al

in Jacquet, Christophe; Balasubramanian, Daniel; Jones, Edward (Eds.) et al Proc. Int. Workshop on Multi-Paradigm Modeling 2013 (MPM'13) (2013)

The development and maintenance of satellite control software are very complex, mission-critical and cost-intensive tasks that require expertise from different domains. In order to adequately address ... [more ▼]

The development and maintenance of satellite control software are very complex, mission-critical and cost-intensive tasks that require expertise from different domains. In order to adequately address these challenges, we propose to use visual views of the software to provide concise abstractions of the system from different perspectives. This paper introduces a visual language for process flow models of satellite control procedures that we developed in cooperation with the industrial partner SES for the satellite control language SPELL. Furthermore, we present a general and formal bidirectional engineering approach for automatically translating satellite control procedures into corresponding process flow visualisations. The bidirectional engineering framework is supported by a visual editor based on Eclipse GMF, the transformation tool HenshinTGG, and additional extensions to meet requirements set up by the specific application area of satellite control languages. [less ▲]

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See detailCorrectness and Completeness of Generalised Concurrent Model Synchronisation Based on Triple Graph Grammars
Gottmann, Susann UL; Hermann, Frank UL; Nachtigall, Nico UL et al

in Baudry, Benoit; Dingel, Juergen; Lucio, Levi (Eds.) et al Proc. Int. Workshop on Analysis of Model Transformations 2013 (AMT'13) (2013)

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See detailTransformation Systems with Incremental Negative Application Conditions
Corradini, Andrea; Heckel, Reiko; Hermann, Frank UL et al

in Recent Trends in Algebraic Development Techniques (2013)

In several application areas, Graph Transformation Systems (GTSs) are equipped with Negative Application Conditions (NACs) that specify “forbidden contexts”, in which the rules shall not be applied. The ... [more ▼]

In several application areas, Graph Transformation Systems (GTSs) are equipped with Negative Application Conditions (NACs) that specify “forbidden contexts”, in which the rules shall not be applied. The extension to NACs, however, introduces inhibiting effects among transformation steps that are not local in general, causing a severe problem for a concurrent semantics. In fact, the relation of sequential independence among derivation steps is not invariant under switching, as we illustrate with an example. We first show that this problem disappears if the NACs are restricted to beincremental. Next we present an algorithm that transforms a GTS with arbitrary NACs into one with incremental NACs only, able to simulate the original GTS. We also show that the two systems are actually equivalent, under certain assumptions on NACs. [less ▲]

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See detailOn an Automated Translation of Satellite Procedures Using Triple Graph Grammars
Hermann, Frank UL; Gottmann, Susann UL; Nachtigall, Nico UL et al

in Duddy, Keith; Kappel, Gerti (Eds.) Theory and Practice of Model Transformations (2013)

Model transformation based on triple graph grammars (TGGs) is a general, intuitive and formally well defined technique for the translation of models [5,6,2]. While previous concepts and case studies were ... [more ▼]

Model transformation based on triple graph grammars (TGGs) is a general, intuitive and formally well defined technique for the translation of models [5,6,2]. While previous concepts and case studies were focused mainly on visual models of software and systems, this article describes an industrial application of model transformations based on TGGs as a powerful technique for software translation using the tool Henshin [1]. The general problem in this scenario is to translate source code that is currently in use into corresponding source code that shall run on a new system. Up to now, this problem was addressed based on manually written converters, parser generators, compiler-compilers or meta-programming environments using term rewriting or similar techniques (see e. g. [4]). [less ▲]

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See detailOn Modelling Communication in Ubiquitous Computing Systems using Algebraic Higher Order Nets
Gottmann, Susann UL; Nachtigall, Nico UL; Hoffmann, Kathrin

in Electronic Communications of the EASST (2012)

Ubiquitous computing systems (UCSs) are designed to participate almost imperceptibly in everyday life. To ensure a solid operation, a UCS heavily depends on a reliable and efficient communication between ... [more ▼]

Ubiquitous computing systems (UCSs) are designed to participate almost imperceptibly in everyday life. To ensure a solid operation, a UCS heavily depends on a reliable and efficient communication between its distributed computing components. Moreover components can join and leave the system at any time. In order to guarantee high quality systems, the use of models is inevitable especially at an early stage of the development process where models are the only possibility to address a system which does not yet exist in reality. Petri nets and graph transformation systems are established, theoretically well-founded concepts for modelling and analysing complex systems. This paper presents a formal approach for modelling core aspects of the communication in UCSs by using Algebraic Higher Order Nets with Individual Tokens and graph transformation. The approach is suitable to cover the different aspects of communication and enables the analysis of specific properties. The approach and its suitability are illustrated based on a running example. The easibility of embedding the approach in a broader context of modelling is demonstrated in applying it to a real world system: the Living Place Hamburg. [less ▲]

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See detailOn the Concurrent Semantics of Transformation Systems with Negative Application Conditions
Corradini, Andrea; Heckel, Reiko; Hermann, Frank UL et al

Report (2012)

Graph Transformation Systems (GTSs) are an integrated formal speci cation framework for modelling and analysing structural and behavioural aspects of systems. The evolution of a system is modelled by the ... [more ▼]

Graph Transformation Systems (GTSs) are an integrated formal speci cation framework for modelling and analysing structural and behavioural aspects of systems. The evolution of a system is modelled by the application of rules to the graphs representing its states and, since typically such rules have local e ects, GTSs are particularly suitable for modelling concurrent and distributed systems where several rules can be applied in parallel. Thus, it is no surprise that a large body of literature is dedicated to the study of the concurrent semantics of graph transformation systems. [less ▲]

Detailed reference viewed: 74 (16 UL)