DSpace Collection: Volume 5 Number 1
http://hdl.handle.net/10525/1587
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Modernizing Legacy Physics Applications for Reuse in Web and SOA
http://hdl.handle.net/10525/1612
Title: Modernizing Legacy Physics Applications for Reuse in Web and SOA<br/><br/>Authors: Malinova, Anna<br/><br/>Abstract: This paper concerns the application of recent information technologies for creating a software system for numerical simulations in the domain of plasma physics and in particular metal vapor lasers. The presentedwork is connected with performing modernization of legacy physics softwarefor reuse on the web and inside a Service-Oriented Architecture environment. Applied and described is the creation of Java front-ends of legacy C++ and FORTRAN codes. Then the transformation of some of the scientific components into web services, as well as the creation of a web interface to the legacy application, is presented. The use of the BPEL language for managing scientific workflows is also considered.Specifics in Applying Agile Software Methodologies in Portal Solutions
http://hdl.handle.net/10525/1611
Title: Specifics in Applying Agile Software Methodologies in Portal Solutions<br/><br/>Authors: Todorov, Nikolay; Eskenazi, Avram<br/><br/>Abstract: Agile methodologies are becoming more popular in the softwaredevelopment process nowadays. The iterative development lifecycle, openness to frequent changes, tight cooperation with the client and among thesoftware engineers are turning into more and more effective practices and respond to a higher extend to the current business needs. It is natural to raisethe question which methodology is the most suitable for use when startingand managing a project. This depends on many factors—product characteristics, technologies used, client’s and developer’s experience, project type.A systematic analysis of the most common problems appearing when developing a particular type of projects—public portal solutions, is proposed. Inthe case at hand a very close interaction with various types of end users isobserved. This is a prerequisite for permanent changes during the development and support cycles, which makes them ideal candidates for using anagile methodology. We will compare the ways in which each methodologyaddresses the specific problems arising and will finish with ranking them according to their relevance. This might help the project manager in choosingone or a combination of the methodologies.Designing an E-Mail Prototype to Enhance Effective Communication and Task Management: A Case Study
http://hdl.handle.net/10525/1610
Title: Designing an E-Mail Prototype to Enhance Effective Communication and Task Management: A Case Study<br/><br/>Authors: Katz, Adi; Berman, Irit<br/><br/>Abstract: This paper deals with communicational breakdowns and misunderstandings in computer mediated communication (CMC) and ways torecover from them or to prevent them. The paper describes a case studyof CMC conducted in a company named Artigiani. We observed communication and conducted content analysis of e-mail messages, focusing on message exchanges between customer service representatives (CSRs) and theircontacts. In addition to task management difficulties, we identified communication breakdowns that result from differences between perspectives, andfrom the lack of contextual information, mainly technical background andprofessional jargon at the customers’ side.We examined possible ways to enhance CMC and accordingly designeda prototype for an e-mail user interface that emphasizes a communicationalstrategy called contextualization as a central component for obtaining effective communication and for supporting effective management and controlof organizational activities, especially handling orders, price quoting, andmonitoring the supply and installation of products.Extending Object-Oriented Network Protocols via alternative Transportation Bindings (Web Services over XMPP)
http://hdl.handle.net/10525/1609
Title: Extending Object-Oriented Network Protocols via alternative Transportation Bindings (Web Services over XMPP)<br/><br/>Authors: Irintchev, Mihail<br/><br/>Abstract: Distributed and/or composite web applications are driven by intercommunication via web services, which employ application-level protocols, such as SOAP. However, these protocols usually rely on the classic HTTP for transportation. HTTP is quite efficient for what it does — delivering web page content, but has never been intended to carry complex web service oriented communication. Today there exist modern protocols that are much better fit for the job. Such a candidate is XMPP. It is an XML-based, asynchronous, open protocol that has built-in security and authentication mechanisms and utilizes a network of federated servers. Sophisticated asynchronous multi-party communication patterns can be established, effectively aiding web service developers. This paper’s purpose is to prove by facts, comparisons, and practical examples that XMPP is not only better suited than HTTP to serve as middleware for web service protocols, but can also contribute to the overall development state of web services.The Divisibility Modulo 4 of Kloosterman Sums over Finite Fields of Characteristic 3
http://hdl.handle.net/10525/1608
Title: The Divisibility Modulo 4 of Kloosterman Sums over Finite Fields of Characteristic 3<br/><br/>Authors: Sin, Changhyon<br/><br/>Abstract: Recently Garashuk and Lisonek evaluated Kloosterman sumsK (a) modulo 4 over a finite field F3m in the case of even K (a). They posed it as an open problem to characterize elements a in F3m for which K (a) ≡ 1 (mod4) and K (a) ≡ 3 (mod4). In this paper, we will give an answer to this problem. The result allows us to count the number of elements a in F3m belonging to each of these two classes.