Change-driven development for scientific software

Scientific software production dates back to the days before the computer science discipline obtained its own name. Over the past 76 years, scientists have been producing software, which means that most of the modern techniques and software engineering methods available these days did not exist while part of this process was taking place. Change-driven development was born as a new approach to maintain and develop scientific software. Founded on the principles of software essence (changeability, complexity, intangibility, and conformity), integrated development tools, and automated source code transformation. This new, agile approach takes change as a working unit devised to drive the entire development process, which is performed in a four-stage cycle. One of the most interesting approaches to apply change-driven development on scientific software is to update, modernize and even parallelize sequential programs that have been written 20 or 30 years ago and are still running in production environments. This process will be thoroughly described and implemented. Two successful case studies will be presented and analyzed in depth.Instituto de Investigación en Informátic

Impulse

Features: [Page] 2 Enterprise Institute moves from idea to $2.3-million building: Three agencies operating out of three-story Enterprise Center.[Page] 6 ACE & YEA camps put high schoolers on career path: The Aerospace Career and Education camp and the Youth Engineering Adventure camp both bring high schoolers lo camp for a week in the summer. Many of them are coming back when it\u27s time to enroll as a collegian. Corporate sponsorship may help camp numbers grow.College:[Page] 9 Four Programs reaccredited: The Electrical, Mechanical. Civil Engineering, and Agricultural and Biosystems Engineering programs all have been reaccredited for six years.[Page] 10 New Doctorates: Classes begin in !he fall for degrees in statistics and geospatial scienceFaculty[Page] 12 Dennis Helder wins top award: USGS honors department head with its top honor to non-employees[Page] 14 Hassan Ghazi: retiring mechanical engineering professor marked twenty years at SDSU[Page] 15 Nadim Wehbe: The College doesn\u27t stop teaching engineers after they\u27ve been employed[Page] 16 Delvin De Boer: A class for water plant operators has one a national education award[Page] 18 Dennis Helder, Sung Shin: Korean manufacturers may decide to move facilities to South Dakota[Page] 20 Orie Leisure: After thirty-nine years, physics professor Leisure is ready for some leisure.[Page] 22 Structures test: First tests performed in Jerry Lohr Structure LabStudents: [Page] 23 New map: EROS replaces black-and-white map in Crothers[Page] 24 Robiotics: Freshman ME major returns to high school to help[Page] 26 Swedish Engineers: Three Swedes adjust to life in South Dakota Alumni:[Page] 28 Joe Vogel: Creates first scholarship for software engineering programContributors: [Page 30-32] Dean\u27s Clubhttps://openprairie.sdstate.edu/coe_impulse/1014/thumbnail.jp

Engineering at San Jose State University, Winter 2005

https://scholarworks.sjsu.edu/engr_news/1001/thumbnail.jp

Paving the Roadway for Safety of Automated Vehicles: An Empirical Study on Testing Challenges

The technology in the area of automated vehicles is gaining speed and promises many advantages. However, with the recent introduction of conditionally automated driving, we have also seen accidents. Test protocols for both, conditionally automated (e.g., on highways) and automated vehicles do not exist yet and leave researchers and practitioners with different challenges. For instance, current test procedures do not suffice for fully automated vehicles, which are supposed to be completely in charge for the driving task and have no driver as a back up. This paper presents current challenges of testing the functionality and safety of automated vehicles derived from conducting focus groups and interviews with 26 participants from five countries having a background related to testing automotive safety-related topics.We provide an overview of the state-of-practice of testing active safety features as well as challenges that needs to be addressed in the future to ensure safety for automated vehicles. The major challenges identified through the interviews and focus groups, enriched by literature on this topic are related to 1) virtual testing and simulation, 2) safety, reliability, and quality, 3) sensors and sensor models, 4) required scenario complexity and amount of test cases, and 5) handover of responsibility between the driver and the vehicle.Comment: 8 page

THE COLUMBUS GROUND SEGMENT – A PRECURSOR FOR FUTURE MANNED MISSIONS

In the beginning the space programs were self standing national activities, often in competition to other nations. Today space flight becomes more and more an international task. Complex space mission and deep space explorations are not longer to be stemmed by one agency or nation alone but are joint activities of several nations. The best example for such a joint (ad-) venture at the moment is the International Space Station ISS. Such international activities define complete new requirements for the supporting ground segments. The world-wide distribution of a ground segment is not any longer limited to a network of ground stations with the aim to provide a good coverage of the space craft. The coverage is sometimes – like for the ISSanyway ensured by using a relay satellite system instead. In addition to the enhanced down- and uplink methods a ground segment is aimed to connect the different centres of competence of all participating agencies/nations. From the space craft operations point of view such transnational ground segments are required to support distributed and shared operations in a predefined decision/commanding hierarchy. This has to be taken into account in the technical topology as well as for the operational set-up and teaming. Last not least increases the duration of missions, which requires a certain flexibility of the ground segment and long-term maintenance strategies for the ground segment with a special emphasis on nonintrusive replacements. The Russian space station MIR has been in the orbit for about 15 years, the ISS is currently targeted for 2020, to be for over 20 years in space

Software systems engineering: a journey to contemporary agile and beyond, do people matter?

It is fascinating to view the evolution of software systems engineering over the decades. At the first glance, it could be perceived that the various approaches and processes are different. Are they indeed different? This paper will briefly discuss such a journey relating to findings from an empirical study in some organisations in the UK. Some of the issues described in the literature and by practitioners are common across different software system engineering approaches over the time. It can be argued that human-element of software development plays an integral part in the success of software systems development endeavour. After all, software engineering is a human-centric craft. In order to understand such issues, we crossed the discipline to other disciplines in order to adapt theories and principles that will help to better understand and tackle such matter. Other disciplines have well established human related theories and principles that can be useful. From Japanese management philosophies, we have adapted Lean and knowledge management theories. From psychology, we have adapted Emotional Intelligence (EI). With such an interdisciplinary view, some of the issues can be addressed adequately. Which bring the question: is it really the process or the people? The second author will reflect on his experience attending the first SQM conference 25 years ago. The reflection will discuss the evolution of software systems engineering, and what was changed since then, if at all changed