P084 - ISTA 2006 - Information Systems Technolopgy and its Applications
Auflistung P084 - ISTA 2006 - Information Systems Technolopgy and its Applications nach Erscheinungsdatum
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- KonferenzbeitragTamper protection of online clients through random checksum algorithms(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Grimen, Gisle; Mönch, Christian; Midtstraum, RogerWe describe a new purely software-based, self-checking mechanism designed to prevent tampering of client programs in client/server-applications like online-games, peer-to-peer networks, or online auction systems. Our mechanism consists of randomly creating checksum algorithms at the server. The checksum algorithms are integrated into autonomous short-lived software code, called Mobile Guards, which are downloaded to a client program during its execution. The client programs are designed to be functionally dependent on the execution of a Mobile Guard. The randomly created checksum functions and the concept of Mobile Guards enable a highly dynamic protection mechanism, capable of rapidly evolving as new threats arise.
- KonferenzbeitragTool supported aspectual predesign(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Shekhovtsov, Vladimir A.; Kostanyan, Arkadiy V.; Gritskov, Eugene; Litvinenko, YuryAspectual predesign is an approach to user-verified mapping of the nonfunctional requirements to the system into the aspect-oriented design model. It is an extension of the Klagenfurt Conceptual Predesign. In this paper, we present the architecture of modular software tool aiming to support the aspectual predesign workflow. The XML-based Predesign Exchange Format (PEF) for conversionindependent representation of aspectual predesign model (APM) is introduced.
- KonferenzbeitragMultiple criteria ranking enterprises based on inconsistent estimations(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Pertovsky, Alexey B.The paper considers a technique for ordering objects that are described with many quantitative and/or qualitative attributes and may exist in several copies. Such multi-attribute objects may be represented as multisets or sets with repeating elements. Object ordering is based on the theory of multiset metric spaces and applied to ranking enterprises, which are estimated differently by several decision makers/experts under multiple criteria.
- KonferenzbeitragMethod engineering: theory and practice(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Henderson-Sellers, B.Method engineering promotes the idea of constructing methodologies for information systems development by selecting and assembling method fragments from a repository. This repository needs first to be populated with selfcontained fragments derived from industry best practice and compliant with a given metamodel. A situational method is then constructed (by a method engineer) to exactly match the requirements of the individual organization and/or project. This paper briefly outlines both the theory of situational method engineering and its application in terms of industry case studies carried out over the last 5 years in Sydney, Australia in helping organizations to create agile and flexible methodologies, capable of maturing and improving over the years.
- KonferenzbeitragA JXTA-based music information retrieval system(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Jung, Hyosook; Park, SeongbinIn this paper, we present a JXTA-based system for contents-based music information retrieval. The system finds matching melodies from a set of XML documents that encode music contents. The XML documents are stored in a native XML database and XPath query language is used to extract the information about the structure of music data. The matching algorithm utilizes the geometric hashing technique [Wo97] by analyzing geometric properties of both XML documents and music contents. The system preprocesses extracted music contents and stores the information about melody patterns in a relational database. When a user sends a query about a melody, it searches melody patterns that have similar geometric properties as the query melody.
- KonferenzbeitragA vision to construct multiple data views in peer data management systems(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Mohamed, Rozlina; Al-Mourad, M. Basel; Khalifa, Yasser M. A.
- KonferenzbeitragCoordinating higher education as an e-government initiative(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Cherednichenko, Olga; Kuklenko, Dmytro; Zlatkin, SergiyGovernment plays a key role in providing higher education. It supplies policies and regulations, information to the society, administers funds and licensing, develops standards, etc. In the context of total e-Governing Ministries of Education of many countries initiated the creation of supporting information systems. These systems in most cases are limited to providing information resources of different kinds to the society by web-portals. Administering and coordinating functions are left out for some reasons. In this paper we discover the typical structure of higher education, different stakeholders involved in the process of providing higher education services, information and data flows. We discuss the key functions that information systems must support. And finally we propose the e-Government higher education reference model to be addressed when developing such information systems.
- KonferenzbeitragSemantic interoperability in the norwegian petroleum industry(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Gulla, Jon Atle; Tomassen, Stein L.; Strasunskas, DarijusThe petroleum industry is a technically challenging business with high investments, complex projects and operational structures. There are numerous companies and public offices involved in the exploitation of a new oil field, and there is a high degree of specialization among them. Even though standardization has been considered important in this industry for many years, there is still very little integration across phases and disciplines. An industrially driven consortium launched the Integrated Information Platform project in 2004, in which semantic standards based on OWL and Semantic Web technologies were to be developed for the subsea petroleum industry. This paper presents the IIP project in more detail and discusses how industry-wide ontologies can support semantic interoperability and encourage more process integration.
- KonferenzbeitragAn investigation of the target environment for agile methods(Information Systems Technology and its Applications, 5th International Conference ISTA 2006, 2006) Strode, Diane; Tretiakov, AlexeiThe agile methods were investigated to determine the factors making up their target environment. A theoretical model of the target environment for agile methods was developed and then tested using a multi-case study. Data from nine software development projects, both agile and non-agile, was gathered from project leaders. Then a cross-case analysis of each factor in the theoretical model explored the relationship between each of the environmental factors and the extent of agile method usage. This led to a refined model of the target environment. The empirical data showed that specific environmental factors correlate with effective use of an agile method. We also report that methods are tailored for use, and that, although agile methods are distinct from ad hoc development, the extent of agile method use must be measured before conclusions from agile method studies can be considered valid.