EasyTime++: A case study of incremental domain-specific language development

EasyTime is a domain-specific language (DSL) for measuring time during sports competitions. A distinguishing feature of DSLs is that they are much more amenable to change, and EasyTime is no exception in this regard. This paper introduces two new EasyTime features: classifications of competitors into categories, and the inclusion of competitions where the number of laps must be dynamically determined. It shows how such extensions can be incrementally added into the base-language reusing most of the language specifications. Two case studies are presented showing the suitability of this approach

Upgrading EasyTime: from a textual to a visual language

Measuring time in mass sports competitions is usually performed using expensive measuring devices. Unfortunately, these solutions are not acceptable by many organizers of sporting competitions. In order to make the measuring time as cheap as possible, the domain-specific language (DSL) EasyTime was proposed. In practice, it has been proven to be universal, flexible, and efficient. It can even reduce the number of required measuring devices. On the other hand, programming in EasyTime is not easy, because it requires a domain-expert to program in a textual manner. In this paper, the domain-specific modeling language (DSML) EasyTime II is proposed, which simplifies the programming of the measuring system. First, the DSL EasyTime domain analysis is presented. Then, the development of DSML is described in detail. Finally, the DSML was tested by regular organizers of a sporting competition. This test showed that DSML can be used by end-users without any previous programming knowledge

Concept of drafting detection system in Ironmans

One of the biggest challenges for the Computer Science of today can be summed up by the paradigm "access to information from $everywhere$ at $anytime$". This is especially true for pervasive computing. With the growth of mobile devices (e.g., smart-phones), on the one hand, and the quick development of the Internet (this has become the really pervasive network of today), on the other hand, the development of real-time pervasive applications has broadened. This paper focuses on the problem of drafting detection in the Ironman triathlons which causes serious problems for the majority of organizers regarding such competitions. A concept of drafting detection system in Ironman is based on the paradigm of pervasive computing. Results of performing a test system show that this concept can along with further development of computer technologies become a reality in the near future

Proceedings of the Federated Conference on Computer Science and Information Systems pp. 801–808 ISBN 978-83-60810-22-4 Implementation of the Domain-Specific Language EasyTime using a LISA Compiler Generator

Abstract—A manually time-measuring tool in mass sporting competitions cannot be imagined nowadays because many modern disciplines, such as IronMan, take a long time and, therefore, demand additional reliability. Moreover, automatic timing devices, based on RFID technology, have become cheaper. However, these devices cannot operate stand-alone because they need a computer measuring system that is capable of processing the incoming events, encoding the results, assigning them to the correct competitor, sorting the results according to the achieved times, and then providing a printout of the results. In this article, the domain-specific language EasyTime is presented, which enables the controlling of an agent by writing the events in a database. In particular, we are focused on the implementation of EasyTime with a LISA tool that enables the automatic construction of compilers from language specifications using Attribute Grammars. By using of EasyTime, we can also decrease the number of measuring devices. Furthermore, EasyTime is universal and can be applied to many different sporting competitions in practice. Index Terms—domain-specific language, parser, code generator, time-measuring, RFID technology I