BibSonomy publications for /user/a_olympia/softwareSat Aug 18 13:22:24 CEST 2007Journal of Software Maintenance and Evolution: Research and PracticeNovember6367--384Using software trails to reconstruct the evolution of software162004software evolution This paper describes a method to recover the evolution of a software system using its <I >software trails</I >: information left behind by the contributors to the development process of the product, such as mailing lists, Web sites, version control logs, software releases, documentation, and the source code. This paper demonstrates the use of this method by recovering the evolution of Ximian Evolution, a mail client for Unix. By extracting useful facts stored in these software trails and correlating them, it was possible to provide a detailed view of the history of this project. This view provides interesting insight into how an open source software project evolves and some of the practices used by its software developers. Copyright \&copy; 2004 John Wiley {\&} Sons, Ltd.Sat Aug 18 13:22:24 CEST 2007New York, NY, USAICSE '02: Proceedings of the 24th International Conference on Software Engineering559--563Accelerating software development through collaboration2002software development accelerating Sat Aug 18 13:22:24 CEST 2007Selected Areas in Communications, IEEE Journal on4514--538Software radio architecture: a mathematical perspective171999radio software mathematical As the software radio makes its transition from research to practice, it becomes increasingly important to establish provable properties of the software radio architecture on which product developers and service providers can base technology insertion decisions. Establishing provable properties requires a mathematical perspective on the software radio architecture. This paper contributes to that perspective by critically reviewing the fundamental concept of the software radio, using mathematical models to characterize this rapidly emerging technology in the context of similar technologies like programmable digital radios. The software radio delivers dynamically defined services through programmable processing capacity that has the mathematical structure of the Turing machine. The bounded recursive functions, a subset of the total recursive functions, are shown to be the largest class of Turing-computable functions for which software radios exhibit provable stability in plug-and-play scenarios. Understanding the topological properties of the software radio architecture promotes plug-and-play applications and cost-effective reuse. Analysis of these topological properties yields a layered distributed virtual machine reference model and a set of architecture design principles for the software radio. These criteria may be useful in defining interfaces among hardware, middleware, and higher level software components that are needed for cost-effective software reuseSat Aug 18 13:22:24 CEST 2007Abstract State Machines361--366Report on a Practical Application of ASMs in Software Design2000software design ASMs have been used at Siemens Corporate Technology to design a component in a software package called FALKO. Main purpose of FALKO is the construction and validation of timetables for railway systems. For simulation the whole closed-loop traffic control system is modelled within FALKO. The railway process model part of FALKO was formally specified using the ASM approach. C++ code is generated from the formal specification and compiled together with the handwritten C++ code of the other...Sat Aug 18 13:22:24 CEST 2007AugThe Structure of Collaborative Tagging Systems2005community collaborative_tagging sociology network_analysis semantics folksonomy no-tag clustering socialbookmarking linguistics socialsoftware datamining collaboration tagging software social-networks classification information_organization collective web20 semiotics eni collaborative networks wasabee socialnets emergence ict self-organization cooperation social interface tag social_networks scale-free emergent computer-networks delicious farsi-media networking trends core_periphery tags socialtagging folksonomies Collaborative tagging describes the process by which many users add metadata in the form of keywords to shared content. Recently, collaborative tagging has grown in popularity on the web, on sites that allow users to tag bookmarks, photographs and other content. In this paper we analyze the structure of collaborative tagging systems as well as their dynamical aspects. Specifically, we discovered regularities in user activity, tag frequencies, kinds of tags used, bursts of popularity in bookmarking and a remarkable stability in the relative proportions of tags within a given url. We also present a dynamical model of collaborative tagging that predicts these stable patterns and relates them to imitation and shared knowledge.Sat Aug 18 13:22:24 CEST 2007Community Software Development with the Astrophysics Simulation Collaboratory2001development community software This paper addresses issues given by the template developed by the GCE WG for the journal. The paper can be shortened if necessary. Submitted to: Journals Production Department, John Wiley {\&} Sons, Ltd., Chichester, West Sussex, PO19 1UD, U.K. SUMMARY We describe a Grid-based collaboratory that supports the collaborative development and use of advanced simulation codes. Our implementation of this collaboratory uses a mix of Web technologies (for thin-client access) and Grid services (for...Sat Aug 18 13:22:24 CEST 2007NovLogarithmic growth dynamics in software networks2005growth networks logarithmic software dynamics In a recent paper, Krapivsky and Redner (Phys. Rev. E, 71 (2005) 036118) proposed a new growing network model with new nodes being attached to a randomly selected node, as well to all ancestors of the target node. The model leads to a sparse graph with an average degree growing logarithmically with the system size. Here we present compeling evidence for software networks being the result of a similar class of growing dynamics. The predicted pattern of network growth, as well as the stationary in- and out-degree distributions are consistent with the model. Our results confirm the view of large-scale software topology being generated through duplication-rewiring mechanisms. Implications of these findings are outlined.Sat Aug 18 13:22:24 CEST 2007International Journal of Human-Computer StudiesSeptember9789--798Weblog success: Exploring the role of technology642006weblogalojamientos technology success herramientas bitcoras popularity software blogs blogging Weblogs have recently gained considerable media attention. Leading weblog sites are already attracting millions of visitors. Yet, success in the highly competitive world of weblogs is not easily achieved. This study seeks to explore weblog success from a technology perspective, i.e. from the impact of weblog-building technology (or blogging tool). Based on an examination of 126 highly successful weblogs tracked over a period of 3 months, we categorized weblogs in terms of popularity rank and growth, and evaluated the relationship between weblog success (in terms of popularity) and technology use. Our analysis indicates that weblog success is associated with the type of blogging tool used. We argue that technology characteristics affect the presentation and organization of weblog content, as well as the social interaction between bloggers, and in turn, affect weblog success or popularity improvement. Based on this analysis, we propose a techno-social success model for weblogs. This model postulates that a weblog's success is mainly associated with its ability to provide value for its users and readers at the content, the technology, and the social levels.Wed Dec 27 16:16:32 CET 2006Blogging Success Study2006Software blogging Blogging study Success