Investigating an Open Source based platform strategy at Sony Ericsson

Purpose: The purpose of the thesis is to investigate whether the future development of the Digital Home creates incentives for Sony Ericsson to initiate an Open Source based platform strategy. Issues: The main issues presented: To create future scenarios of the Digital Home environment and describe its ecosystem of consumer electronics and mobile phones. To investigate the competitive advantage for Sony Ericsson to implement an Open Source based platform in each of these scenarios. Method: In order to succeed with the purpose, the current market situation is studied and development trends are identified. A prediction of the development of the industry is made on the basis of a Micro Delphi analysis in combination with studying written sources. Future scenarios are constructed and used as a foundation for the analysis. Conclusions: The scenarios presented in this paper all create incentives for Sony Ericsson to initiate an Open Source based platform strategy. Such a strategy would put the company in a good position if an Open Source based platform, especially a Linux platform, would become one of the leading. An Open Source based platform has the potential to become leading due to the nature of Open Source which attracts third party development especially from Internet service providers, crucial for survival in the industry. With an Open Source based platform, there is also an opportunity for Sony Ericsson to create a common platform with Sony and together build an ecosystem of devices for the future Digital Home. However, due to the instable value chain and the uncertainty of its structure in five years, it is the authors’ believe that an Open Source based platform should not constitute the single one, but be one of several in a platform portfolio where an Open Source based platform would be the long-term strategy

Plasduino: an inexpensive, general purpose data acquisition framework for educational experiments

Based on the Arduino development platform, Plasduino is an open-source data acquisition framework specifically designed for educational physics experiments. The source code, schematics and documentation are in the public domain under a GPL license and the system, streamlined for low cost and ease of use, can be replicated on the scale of a typical didactic lab with minimal effort. We describe the basic architecture of the system and illustrate its potential with some real-life examples.Comment: 11 pages, 10 figures, presented at the XCIX conference of the Societ\`a Italiana di Fisic

Software Metrics in Boa Large-Scale Software Mining Infrastructure: Challenges and Solutions

In this paper, we describe our experience implementing some of classic software engineering metrics using Boa - a large-scale software repository mining platform - and its dedicated language. We also aim to take an advantage of the Boa infrastructure to propose new software metrics and to characterize open source projects by software metrics to provide reference values of software metrics based on large number of open source projects. Presented software metrics, well known and proposed in this paper, can be used to build large-scale software defect prediction models. Additionally, we present the obstacles we met while developing metrics, and our analysis can be used to improve Boa in its future releases. The implemented metrics can also be used as a foundation for more complex explorations of open source projects and serve as a guide how to implement software metrics using Boa as the source code of the metrics is freely available to support reproducible research.Comment: Chapter 8 of the book "Software Engineering: Improving Practice through Research" (B. Hnatkowska and M. \'Smia{\l}ek, eds.), pp. 131-146, 201

TXM : Une plateforme logicielle open-source pour la textométrie - conception et développement

International audienceThe research project Federation and Research Developments in Textometry around the creation of an Open- Source Platform distributes its XML-TEI encoded corpus textometric analysis platform online. The design of this platform is based on a synthesis of features of existing textometric software. It relies on identifying the open-source software technology available and effectively processing digital resources encoded in XML and Unicode, and on a state of the art of open-source full-text search engines on structured and annotated corpora. The architecture is based on a Java toolkit component articulating a search engine (IMS CWB), a statistical computing environment (R) and a module for importing XML-TEI encoded corpora. The platform is distributed as an open-source toolkit for developers and in the form of two applications for end users of textometry: a local application to install on a workstation (Windows or Linux) and an online web application. Still early in its development, the platform implements at present only a few essential features, but its distribution in open-source already allows an open community development. This should facilitate its development and integration of new models and methods.Le projet de recherche Fédération des recherches et développements en textométrie autour de la création d'une plateforme logicielle ouverte diffuse sa plateforme d'analyse textométrique de corpus XML-TEI en ligne. La conception de cette plateforme repose sur une synthèse des fonctionnalités des logiciels de textométrie existants. Elle s'appuie sur le recensement des technologies logicielles open-source disponibles et efficaces pour manipuler des ressources numériques XML et Unicode, et sur un état de l'art des moteurs de recherche en texte intégral sur corpus structurés et étiquetés. L'architecture consiste en une boîte à outils Java articulant un composant moteur de recherche (IMS CWB), un environnement de calcul statistique (R) et un module d'importation de corpus XML-TEI. La plateforme est diffusée sous la forme d'une boite à outils en open-source pour les développeurs informatique mais également sous la forme de deux applications pour les utilisateurs finaux de la textométrie : une application à installer sur un poste local (Windows ou Linux) et une application web accessible en ligne. Encore au début de son développement, la plateforme n'implémente à l'heure actuelle que quelques fonctionnalités essentielles, mais sa diffusion en open-source autorise un développement communautaire ouvert. Cela doit faciliter son évolution et l'intégration de nouveaux modèles et méthodes

Atomic: an open-source software platform for multi-level corpus annotation

This paper presents Atomic, an open-source platform-independent desktop application for multi-level corpus annotation. Atomic aims at providing the linguistic community with a user-friendly annotation tool and sustainable platform through its focus on extensibility, a generic data model, and compatibility with existing linguistic formats. It is implemented on top of the Eclipse Rich Client Platform, a pluggable Java-based framework for creating client applications. Atomic - as a set of plug-ins for this framework - integrates with the platform and allows other researchers to develop and integrate further extensions to the software as needed. The generic graph-based meta model Salt serves as Atomic’s domain model and allows for unlimited annotation levels and types. Salt is also used as an intermediate model in the Pepper framework for conversion of linguistic data, which is fully integrated into Atomic, making the latter compatible with a wide range of linguistic formats. Atomic provides tools for both less experienced and expert annotators: graphical, mouse-driven editors and a command-line data manipulation language for rapid annotation

Wi-PoS : a low-cost, open source ultra-wideband (UWB) hardware platform with long range sub-GHz backbone

Ultra-wideband (UWB) localization is one of the most promising approaches for indoor localization due to its accurate positioning capabilities, immunity against multipath fading, and excellent resilience against narrowband interference. However, UWB researchers are currently limited by the small amount of feasible open source hardware that is publicly available. We developed a new open source hardware platform, Wi-PoS, for precise UWB localization based on Decawave’s DW1000 UWB transceiver with several unique features: support of both long-range sub-GHz and 2.4 GHz back-end communication between nodes, flexible interfacing with external UWB antennas, and an easy implementation of the MAC layer with the Time-Annotated Instruction Set Computer (TAISC) framework. Both hardware and software are open source and all parameters of the UWB ranging can be adjusted, calibrated, and analyzed. This paper explains the main specifications of the hardware platform, illustrates design decisions, and evaluates the performance of the board in terms of range, accuracy, and energy consumption. The accuracy of the ranging system was below 10 cm in an indoor lab environment at distances up to 5 m, and accuracy smaller than 5 cm was obtained at 50 and 75 m in an outdoor environment. A theoretical model was derived for predicting the path loss and the influence of the most important ground reflection. At the same time, the average energy consumption of the hardware was very low with only 81 mA for a tag node and 63 mA for the active anchor nodes, permitting the system to run for several days on a mobile battery pack and allowing easy and fast deployment on sites without an accessible power supply or backbone network. The UWB hardware platform demonstrated flexibility, easy installation, and low power consumption

A flexible and low-cost open-source IPMC mezzanine for ATCA boards based on OpenIPMC

This work presents the development of an Intelligent Platform Management Controller mezzanine in a Mini DIMM form factor for use in electronic boards compliant to the PICMG Advanced Telecommunication Computing Architecture (ATCA) standard. The module is based on an STMicroelectronics STM32H745 microcontroller running the OpenIPMC open-source software. The mezzanine has been successfully tested on a variety of ATCA boards being proposed for the upgrade of the experiments at the HL-LHC, with its design and firmware being distributed under open-source hardware license