ADA Volume 35 USER Number 2 June 2014 JOURNAL Contents Page Editorial Policy for Ada User Journal 70 Editorial 71 Quarterly News Digest 72 Conference Calendar 94 Forthcoming Events 100 Press Release “Ada 2012 Language Standard Published in Springer's LNCS and as Free eBook” 104 Articles M. Mefteh, N. Bouassida and H. Ben-Abdallah “Feature Model Extraction from Documented UML Use Case Diagrams” 107 Proceedings of the “Workshop on Mixed Criticality for Industrial Systems” of Ada-Europe 2014 117 R. Davis et al. “PROXIMA: A Probabilistic Approach to the Timing Behaviour of Mixed-Criticality Systems” 118 A. Alonso and E. Salazar “Toolset for Mixed-Criticality Partitioned Systems: Partitioning Algorithm and Extensibility Support” 123 P. Lindgren, D. Pereira, J. Eriksson, M. Linder and L.M. Pinho “RTFM-lang Static Semantics for Systems with Mixed Criticality” 128 M. Jan, L. Zaourar, V. Legout and L. Pautet “Handling Criticality Mode Change in Time-Triggered Systems through Linear Programming” 133 O. Cros, F. Fauberteau, L. George and X. Li “Mixed Criticality over Switched Ethernet Networks” 138 A. Cohen, V. Perrelle, D. Potop-Butucaru, E. Soubiran and Z. Zhang “Mixed Criticality in Railway Systems: A Case Study on Signaling Application” 144 Ada-Europe Associate Members (National Ada Organizations) 148 Ada-Europe Sponsors Inside Back Cover Ada User Journal Volume 35, Number 2, June 2014 70 Editorial Policy for Ada User Journal Publication Original Papers a wider audience. This includes papers Ada User Journal — The Journal for Manuscripts should be submitted in published in North America that are the international Ada Community — is accordance with the submission not easily available in Europe. published by Ada-Europe. It appears guidelines (below). We have a reciprocal approach in four times a year, on the last days of granting permission for other March, June, September and All original technical contributions are submitted to refereeing by at least two publications to reprint papers originally December. Copy date is the last day of published in Ada User Journal. the month of publication. people. Names of referees will be kept confidential, but their comments will Commentaries Aims be relayed to the authors at the discretion of the Editor. We publish commentaries on Ada and Ada User Journal aims to inform software engineering topics. These readers of developments in the Ada The first named author will receive a may represent the views either of programming language and its use, complimentary copy of the issue of the individuals or of organisations. Such general Ada-related software engine- Journal in which their paper appears. articles can be of any length – ering issues and Ada-related activities. inclusion is at the discretion of the The language of the journal is English. By submitting a manuscript, authors grant Ada-Europe an unlimited license Editor. Although the title of the Journal refers to publish (and, if appropriate, Opinions expressed within the Ada to the Ada language, related topics, republish) it, if and when the article is User Journal do not necessarily such as reliable software technologies, accepted for publication. We do not represent the views of the Editor, Ada- are welcome. More information on the require that authors assign copyright to Europe or its directors. scope of the Journal is available on its the Journal. website at www.ada-europe.org/auj. Unless the authors state explicitly Announcements and Reports The Journal publishes the following otherwise, submission of an article is We are happy to publicise and report types of material: taken to imply that it represents on events that may be of interest to our original, unpublished work, not under readers. Refereed original articles on consideration for publication else- where. technical matters concerning Ada Reviews and related topics. Proceedings and Special Issues Inclusion of any review in the Journal Invited papers on Ada and the Ada is at the discretion of the Editor. A standardization process. The Ada User Journal is open to reviewer will be selected by the Editor consider the publication of proceedings to review any book or other publication Proceedings of workshops and of workshops or panels related to the sent to us. We are also prepared to panels on topics relevant to the Journal's aims and scope, as well as print reviews submitted from Journal. Special Issues on relevant topics. elsewhere at the discretion of the Reprints of articles published Interested proponents are invited to Editor. elsewhere that deserve a wider contact the Editor-in-Chief. audience. Submission Guidelines News and miscellany of interest to News and Product Announcements All material for publication should be the Ada community. Ada User Journal is one of the ways in sent electronically. Authors are invited which people find out what is going on to contact the Editor-in-Chief by Commentaries on matters relating in the Ada community. Our readers electronic mail to determine the best to Ada and software engineering. need not surf the web or news groups format for submission. The language of the journal is English. Announcements and reports of to find out what is going on in the Ada conferences and workshops. world and in the neighbouring and/or Our refereeing process aims to be competing communities. We will rapid. Currently, accepted papers Announcements regarding reprint or report on items that may be standards concerning Ada. submitted electronically are typically of interest to them. published 3-6 months after submission. Reviews of publications in the Items of topical interest will normally field of software engineering. Reprinted Articles appear in the next edition. There is no While original material is our first limitation on the length of papers, Further details on our approach to priority, we are willing to reprint (with though a paper longer than 10,000 these are given below. More complete the permission of the copyright holder) words would be regarded as information is available in the website material previously submitted exceptional. at www.ada-europe.org/auj. elsewhere if it is appropriate to give it Volume 35, Number 2, June 2014 Ada User Journal 71 Editorial This editorial is being written at the location of the 19th International Conference on Reliable Software Technologies – Ada- Europe 2014, in the heart of Paris, France, after a really intense week. As usual, the five days of the conference provided both very rich technical contents (some of which we start publishing in this issue) as well as a very pleasant networking atmosphere; I would like to congratulate the conference committees for the excellent week we enjoyed! I also take the opportunity to invite our readers to the next Ada-Europe conference, which will take place in Madrid, Spain, 22-26 June 2015, organised by the Universidad Politécnica de Madrid. More details about Ada-Europe 2015 can be found in the forthcoming events section of the Journal. Also in this section the reader will find updated information on the SIGAda HILT 2014 conference, which will be co-located with the SIGPLAN SPLASH conference, in Portland, Oregon, October 18- 21, 2014. And I am very pleased to inform about the next edition of the International Real-Time Ada Workshop, which will take place April 2015, in Vermont, USA. We expect to publish the call for papers of IRTAW 2015 in the next issue of the Journal. Concerning the technical contents of this issue, the first paper, from a group of authors from the Sfax University, Tunisia and King Abdulaziz University, Saudi Arabia, presents an automated approach to extract the features model from software product lines. Afterwards, the issue publishes the Proceedings of the “Workshop on Mixed Criticality for Industrial Systems”, which took place at Ada-Europe 2014, June 27. The workshop provided a discussion forum on research and practice in Mixed-Criticality Systems, showing how research activities interact with industrial needs. The workshop program consisted of a keynote talk, and two technical sessions. The keynote talk was given by Albert Cohen, senior research scientist in the PARKAS group at INRIA, France on the topic of “Correct-by-Construction Multiprocessor Programming: A Common Approach for Parallel and Mixed-Critical System Design”. Multicore and mixed-criticality are important topics, being even more important to provide safe ways to develop such kind of systems. The first technical session started with a position paper on the PROXIMA project, on the topic of probabilistic approaches for timing behaviour of mixed-criticality systems, from a group of authors from multiple institutions: the University of York, UK, University of Padova, Italy, Aeroflex Gaisler, Sweden, Sysgo, France, Rapita Systems, UK, Ikerlan, Spain, Airbus Operations, France, INRIA Paris-Rocquencourt, France, Astrium, France, Infineon Technologies, UK and Barcelona Supercomputing Center, Spain. Then, a work from Universidad Politécnica de Madrid, Spain, provided insights in the support for automatic partitioning generation in the MultiPARTES toolset. The third work, from the Luleå University of Technology, Sweden and the CISTER Research Centre, Portugal, described the RTFM-lang approach using compile-time analysis to distinguish critical and non-critical functions and generate the appropriate access mechanisms. The second session of the workshop started with a work from CEA-LIST, France, Virginia Tech, USA and Telecom Paristech, France, showing how a linear programming approach can be used to generate time-triggered schedules for mode changes in dual-criticality systems. After that, a work from ECE Paris and University Paris-Est, France, analysed how to integrate criticality handling in the IEEE 1588 Precision Time Protocol. And finally, a work from INRIA, Technological Research Institute SystemX, and Alstom Transport, France, presented a case study of mixed-criticality systems, in a signalling railway application. It was a very rich workshop, with fruitful interaction between participants promoting collaboration between the different communities represented.