Traditional modeling approaches support a limited set of instantiation levels (typically one for classes and another adjacent one for objects). Multi-level modeling approaches on the other hand have no such limit to t...
Traditional modeling approaches support a limited set of instantiation levels (typically one for classes and another adjacent one for objects). Multi-level modeling approaches on the other hand have no such limit to the number of levels. As a consequence, an arbitrary number of levels may be used to define models, and the distinction between class and instance is redefined. The paper summarizes the experience gained from applying multi-level modeling techniques to a real application from the domain of development process improvement (DPI). The underlying case study has been conducted in cooperation with a large automotive supplier. We discuss the pros and cons of using multi-level modeling techniques and propose areas that we think would benefit from further research.
In this paper are presented the description of the developed and implemented system for tests control and the analysis of the results received from the testing of students. The database and the developed forms are rev...
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作者：
Gancheva, VeskaTechnical University of Sofia
Faculty of Computer Systems and Technologies Department of Programming and Computer Technologies 8 Kliment Ohridski blvd. Sofia1000 Bulgaria
A rising variety of platforms and software programs have leveraged repository-stored datasets and remote access in recent years. As a result, datasets are more vulnerable to malicious attacks. As a result, network sec...
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This paper suggests the use of the DTM technology as a solution to the transmission of applications with strict need of bandwidth, instead of the use of the traditional ATM technology. The DTM is a broadband network a...
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The article describes the procedure for analyzing information resources of the system of dynamic integration of weakly structured data in the web-environment to determine the common features of information resources a...
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This paper summarizes our experience and findings in measuring and modeling software reliability for a large IBM software product. Four consecutive releases of this product were studied, with various reliability model...
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Program optimization on multi-core systems must preserve the program memory consistency. This paper studies TSO-preserving binary optimization. We introduce a novel approach to formally model TSO-preserving binary opt...
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Program optimization on multi-core systems must preserve the program memory consistency. This paper studies TSO-preserving binary optimization. We introduce a novel approach to formally model TSO-preserving binary optimization based on the formal TSO memory model. The major contribution of the modeling is a sound and complete algorithm to verify TSO-preserving binary optimization with O(N 2 ) complexity. We also developed a dynamic binary optimization system to evaluate the performance impact of TSO-preserving optimization. We show in our experiments that, dynamic binary optimization without memory optimizations can improve performance by 8.1%. TSO-preserving optimizations can further improve the performance by 4.8% to a total 12.9%. Without considering the restriction for TSO-preserving optimizations, the dynamic binary optimization can improve the overall performance to 20.4%.
Proximity is a key to scalable and meaningful interactions in distributed systems, both natural and artificial, and in particular in pervasive computing environments. However, proximity as such is a vague notion that ...
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Transparency and adaptability are important criteria for the usability of computer systems. It is not easy to fulfill these criteria in ill-structured domains by using traditional software concepts. The object-oriente...
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The article describes the design of a system for dynamic integration of weakly structured data using Mash-Up technology. Functional requirements to the system of dynamic data integration based on Mash-Up technology ar...
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