MultiDrone Simulator An Open Source Multi-plataform Tool to Use in Tests of Optimized Flight of Group of Drones

Many previous studies have shown that open-source technologies help democratize information and foster collaborations to enable addressing global physical and societal challenges. The outbreak of the novel coronavirus has imposed unprecedented challenges to human society. It affects every aspect of livelihood, including health, environment, transportation, and economy. Open-source technologies provide a new ray of hope to collaboratively tackle the pandemic. The role of open source is not limited to sharing a source code. Rather open-source projects can be adopted as a software development approach to encourage collaboration among researchers. Open collaboration creates a positive impact in society and helps combat the pandemic effectively. Open-source technology integrated with geospatial information allows decision-makers to make strategic and informed decisions. It also assists them in determining the type of intervention needed based on geospatial information. The novelty of this paper is to standardize the open-source workflow for spatiotemporal research. The highlights of the open-source workflow include sharing data, analytical tools, spatiotemporal applications, and results and formalizing open-source software development. The workflow includes (i) developing open-source spatiotemporal applications, (ii) opening and sharing the spatiotemporal resources, and (iii) replicating the research in a plug and play fashion. Open data, open analytical tools and source code, and publicly accessible results form the foundation for this workflow. This paper also presents a case study with the open-source spatiotemporal application development for air quality analysis in California, USA. In addition to the application development, we shared the spatiotemporal data, source code, and research findings through the GitHub repository.

This is an overview of the training in open source improvement, with specific accentuation on the secluded extensibility interfaces inside a few of the best activities, including Apache, Eclipse, Mozilla Firefox, Linux portion, and the World Wide Web and numerous other logical research-related programming. The issue here is to examine the plan strategies of the open source advancement. This issue is examined by looking at of four models of improvement of open source programming given Nakakoji; Gacek, Lawrie and Arief; Sharma, Sugumaran and Rajagopalan; Feller and Fitzgerald. Exploratory examination is to be directed to clarify the open and free source software development wonder. In the wake of contrasting the single individual model cooperation with an open and free source people group with four different models, the nature of the model is adequate as the reason for this examination and finished up to be an appropriate structure for research in FOSPHost. The single individual model interest to an open and free source people group is picked as hypothetical reason for the examination of FOSPHost. Despite the fact that this model is less explicit than different models, it is extensive and adaptable enough with the end goal of this exploration.KeywordsOpen sourceModelComparisonModes and source designing

Editing and the Crisis of Open Source

Commentary: Open-source hardware for research and education

Full Papers.- A Framework for Evaluating Managerial Styles in Open Source Projects.- Forging A Community - Not: Experiences On Establishing An Open Source Project.- Mapping Linux Security Targets to Existing Test Suites.- Overview on Trust in Large FLOSS Communities.- PMLite: An Open Source Solution for Process Monitoring.- Requirements Acquisition in Open Source Development: Firefox 2.0.- Analysis of Coordination Between Developers and Users in the Apache Community.- Lost and Gained in Translation: Adoption of Open Source Software Development at Hewlett-Packard.- Mining for Practices in Community Collections: Finds From Simple Wikipedia.- Open to Grok. How do Hackers' Practices Produce Hackers?.- Social Dynamics of FLOSS Team Communication Across Channels.- Towards a Global Research Infrastructure for Multidisciplinary Study of Free/Open Source Software Development.- Update Propagation Practices in Highly Reusable Open Source Components.- Using Social Network Analysis Techniques to Study Collaboration between a FLOSS Community and a Company.- Empirical Analysis of the Bug Fixing Process in Open Source Projects.- The Total Growth of Open Source.- Adoption of Open Source in the Software Industry.- Migration Discourse Structures: Escaping Microsoft's Desktop Path.- The SQO-OSS Quality Model: Measurement Based Open Source Software Evaluation.- Short Papers.- An Open Integrated Environment for Transparent Fuzzy Agents Design.- Archetypal Internet-Scale Source Code Searching.- Channeling Firefox Developers: Mom and Dad Aren't Happy Yet.- Continuous Integration in Open Source Software Development.- Extracting Generally Applicable Patterns from Object-Oriented Programs for the Purpose of Test Case Creation.- Social Networking Technologies for Free-Open Source E-Learning Systems.- The Networked Forge: New Environments for Libre Software Development.- To What Extent Does It Pay to Approach Open Source Software for a Big Telco Player?.- A Framework to Abstract The Design Practices of e-Learning System Projects.- Assessing Innovation in the Software Sector: Proprietary vs. FOSS Production Mode. Preliminary Evidence from the Italian Case.- Detecting Agility of Open Source Projects Through Developer Engagement.- Facilitating Social Network Studies of FLOSS using the OSSNetwork Environment.- Reflection on Knowledge Sharing in F/OSS Projects.- Usability in Company Open Source Software Context - Initial Findings from an Empirical Case Study.- Willingness to Cooperate Within the Open Source Software Domain.- Open Source Project Categorization Based on Growth Rate Analysis and Portfolio Planning Methods.- Applying Open Source Development Practices Inside a Company.- Towards The Evaluation of OSS Trustworthiness: Lessons Learned From The Observation of Relevant OSS Projects.- Open Source Reference Systems for Biometric Verification of Identity.- eResearch Workflows for Studying Free and Open Source Software Development.- Panels.- Panel: Opportunities and Risks for Open Source Software in Industry.- Posters and Demonstrations.- Open Source Environments for Collaborative Experiments in e-Science.

PurposeA surge of library activities and technological advances have increased the demand for data accuracy and agility among library clientele. Therefore, novel approaches are needed to extend library services. This paper aims to introduce the implementation of a prototype mobile library application (app) designed using an in-house open source system, Koha.Design/methodology/approachThis paper presents a case study using a metamorphosis process to create mobile apps. This case study is tested based on the library services with a set of activities during the system acceptance test (SAT) and also user acceptance test (UAT). An application programming interface (API) used to support two-way communication, including system-to-component and system-to-system connectivity. The design, features and advantages of this mobile app are discussed, illustrated and analyzed. The case study reports the mobile app version development from the Koha Open Source Library Information System.FindingsThe app was tested using user acceptance test (UAT) and system acceptance test (SAT) by library staffs who found it functional, accessible, appealing and useful. Features such as Online Public Access Catalog search, library collection scanning, patron accounts, patron personal book collection, circulation, librarian chat, QR codes for borrowing books, social media integration and notifications of library activities and events were successfully tested. This process was useful for the creation of a mobile app based on the existing library System-Koha Open Source System.Research limitations/implicationsThis study is limited to a case study of a national university in Malaysia.Practical implicationsThis study has some practical implications for implementing library mobile applications, e.g. it will encourage librarians to implement library applications in libraries.Originality/valueThis study is useful for mobile developers and libraries that plan to offer mobile library services to their patrons. This paper presents a case study of metamorphosis existing process of library open source System-Koha Open Source System.

Open Source, Anarchy, and the Utopian Impulse

India Takes an Open Source Approach to Drug Discovery

The open source software movement has been going on for a few decades now. Today, an increasing number of open source solutions enter the market and become valid alternatives to proprietary and closed solutions. Examples include operating systems like Linux and OpenSolaris, back-end solutions (e.g. LAMP -Linux, Apache web server, MySQL database, and Perl/PHP/Python programming languages - are among the most well-known and widely used open source software on the Internet), office applications (e.g. Firefox web browser, Thunderbird email, GIMP graphics, OpenOffice office suite), and complete enterprise systems like Compiere (ERP and CRM) and Mambo content management system (CMS). In addition, a variety of devices increasingly include open source (e.g. cellular phones, network equipment like routers, and Asterisk -a complete IP PBX). The open source culture is about much more than software and includes open source hardware, views on intellectual properties rights, completely changes how products are developed and owned, and how business models are developed. To decide if open source is something for you, a good understanding of what open source really means is necessary. This includes legal aspects (different licenses), availability of support with (hopefully a thriving) user community and commercial for-pay support options, and security. Intellectual properties rights, and the vast number of many types of open source licenses (e.g. GNU General Public License (GPL) and BSD License), is one of the more complex areas when using open source. What can and not can be done, what must be done, and so on, vary between licenses. One effort to bring some order in all this is the Open Source Definition (OSD) from Open Source Initiative (OSI) which lists ten conditions that must be met for an OSI Certified open source license. Today, many companies have already been forced to either remove or release as open source borrowed by developers without properly complying with licenses. Such code is increasingly easy to detect via compliance tools used by companies doing this as business. (Not to mention whistle-blowing employees tipping of property owners.) Searching for dirty is also increasingly part of due diligence in mergers and acquisitions and can add costly delays and lawsuits. The perceived low cost is often a reason for considering open source solutions but the total costs of development (TCD) - including for example licenses, tools, labor, and support - must be considered from initial design, to maintenance, all through the end of life of the product. This paper reviews critical aspects for going open source, including software and hardware, use of commercial off-the-shelf (COTS) alternatives, system design going from a monolithic, single-binary, firmware to a layered design with operating system, middleware, and user applications.

The purposes of the article are to conduct information monitoring of Ukrainian book publishers on the basis of open information sources and outline recommendations for further marketing campaigns. The research methodology uses the tools of the modeling method: problem statement, creation and analysis of the model. The application of the principles of integrity, hierarchy and structure allows us to consider the analysis of information about competitors from open sources as part of the marketing activities of the enterprise. The scientific novelty of the article is the expansion of theoretical knowledge in the use of open information about the activities of enterprises. The article identifies the key characteristics of participants in the competitive environment of the book publishing market of Ukraine; proved that the key players in the market are the publishing houses «A-ba-ba-ha-la-ma-ha» and «Old Lion Publishing House», the marketing strategy plan for increasing the target audience was specified. Conclusions. The article has showen that the key result of any information and analytical work on competitive intelligence for companies in any industry, in particular, publishing, is to make the right management decisions that will not only retain the existing target audience, but also increase it by new customer account. The result of the analysis of open information sources proved the need to use a strategy of protection against key and direct competitors (loyalty systems for regular customers; closed groups in various groups on social networks for regular customers, etc.). In order to increase the target audience, it is necessary to develop a strategy for attacking weak direct competitors (creating quality content on social networks, including advertising for bloggers; holding various raffles; thematic discounts, promotions). Strong and indirect competitors are also a threat to business. But the key difference from the strategy against direct competitors is the difference in the main characteristics of the product. Despite the common target audience, the range of books is slightly different, which affects the strategy of work, including the advertising campaign. Keywords: book publishing, competitors, promotion, open sources of information.

PurposeThe purpose of this paper is to educate the knowledge worker on the benefits of using open source software, and to demonstrate how open source methodology promotes the collaborative and innovative attributes of knowledge management.Design/methodology/approachThe author lists the open source initiative's definition for open source products, licensing information, the value of open source in a global economy, misconceived barriers to open source adoption, a functional comparison of open source and commercial software products, and web sites where open source products may be obtained.FindingsOpen source usage is prevalent throughout the world for governmental, business, educational, military, and space exploration purposes. Notwithstanding, some commercial enterprises such as the Microsoft Corporation have viewed the open source movement as a threat to profitability, citing alleged intellectual property infringement violations. However, other commercial entities such as IBM, Oracle, Novell, and Apple computer have embraced open source technology to conduct business operations as well as satisfy customer needs. Public appeal for open source products has been strong enough for Microsoft, through a recent public statement, to disclose that the firm wishes to “build a bridge” with the open source community, an apparent realization that open source is here to stay. The knowledge worker should understand that commercial and open source applications may coexist in the same IT environment.Originality/valueA knowledge enterprise's total cost of ownership (TCO) can be significantly reduced through the use of open source software, resulting in an improvement to overall performance attributed to the collaborative and innovative nature of the open source model. Enterprises can benefit by taking a closer look at how open source technology helps to meet organizational goals and objectives in the most efficient and effective manner available.

Abstract: Free and are not requirements for successful software development. The argument that and frequent are one indicator of successful software development does not imply the necessity of users updating the source code but the importance that they function as testers and debuggers. In the development of Japan's non-open source, non-free shareware Mail, the users perform the functions of testers and debuggers. It is evident from the case of Hidemaru Mail that early and frequent upgrades are neither result nor performance indicators, but rather the way to intrinsically motivate users so that they can function as testers and debuggers. In actuality, the developer of Hidemaru Mail motivates users to submit requests and reports more often by meticulously responding to almost all users' requests and reports and upgrading early and frequently. Existing studies are overly particular about whether the source code should be open, and lack the perspective of organizational theory about how developers should motivate users to function as testers and debuggers. While there is the definite possibility of motivating users through open source, this does not indicate that open source is a necessary condition. The necessary condition is to motivate as many users as possible to cooperate in the development. If this is accomplished, the development of software will succeed, regardless of it being free or open.Keywords: open source, software development, early and frequent releases, intrinsic motivation, Hidemaru MailIntroductionThere is little research disputing that the reason for the success of Linux was due to it being free and open source. DiBona, Stone, and Ockman (1999) in particular, emphasized the excellence of open source. The fact that subsequent open source research can be largely divided into the following two categories is proof of this. One set of research is related to the motivation of developers for open source software (OSS) and the open source community (Bitzer, Schrettl, & Schroder, 2007; David & Shapiro, 2008; Hertel, Niedner, & Herrmann, 2003; Oreg & Nov, 2008; von Krogh, Spaeth, & Lakhani, 2003). Another set deals with open source strategy of companies (Capra, Francalanci, Merlo, & Rossi-Lamastra, 2011; Dahlander & Magnusson, 2005, 2008; Grand, von Krogh, Leonard, & Swap, 2004; Sasaki & Kitayama, 2000; Stam, 2009; West, 2003). Both types of research assume that software, which is superior in terms of function and quality as well as stability and robustness, is created in a short period, provided it is developed as open source. Hence, interest is solely devoted to how to ensure the establishment and survival of open source projects and communities, and how companies utilize the results well.Open source does not automatically lead software development to success. For example, Takahashi and Takamatsu (2002, 2013) assert that the miraculous timing of the release of Linux and developer's motivation were the reasons behind its success, and it did not matter whether it was open source or closed source, or free or charged software.1 If early and frequent releases of a new version are an indicator of software development success, then there is no need to be particular about free and open source. It becomes important not to motivate users with high levels of development competence to modify the code through open source, but to motivate mere general users to function as testers and debuggers. If developers can entrust the testing and debugging to users, the developers can release new versions very quickly. A good example that illustrates this is the development case of Japan's representative mailer, Mail. Hidemaru Mail is non-free shareware. While the developer, Hideo Saito, did not publicize the source code, new versions have been released at a pace of approximately once every four days for twelve years from the initial version release. …

This paper analyses the sound radiated from the front face of a hard-walled circular cylindrical duct in a subsonic mean flow when the duct contains acoustic sources typical of those in a ducted-fan aeroengine. Two main results are established for modes of any given frequency and circumferential order. The first result is that in certain easily calculated directions, called here the nil-shielding directions, the sound radiated by ducted sources is the same as the sound radiated by the corresponding open sources, i.e. by unducted sources of the same distribution and strength radiating into free space. Thus in these special directions the duct has no noise-shielding effect. The second result is that, in the Kirchhoff approximation, the sound radiated by the open sources in the nil-shielding directions determines the sound radiated by the ducted sources in all directions; i.e. the sound fields radiated by open and ducted sources are related by an open-to-ducted transfer function. This function is such that the sound radiated by the ducted sources is a linear combination of certain diffraction functions, in which the coefficients are given by the sound radiated by the open sources in the nil-shielding directions. The diffraction functions do not depend on the sources and are here calculated explicitly in terms of Bessel functions. The method used in the paper is Kirchhoff's approximation; within linear theory this gives the nil-shielding directions exactly, i.e. in agreement with the Wiener—Hopf solution, and gives the main beam of the radiated field, including the major side-lobes, to good accuracy. The results are relevant to the sound radiated into the forward arc by a ducted turbofan aeroengine.

International column: The open source road to Web 2.0 for Nigeria: A view of two worlds from the outside

The Blue Obelisk mailing list has seen an interesting discussion on ambiguity in the term 'open source', triggered by a study by Beth Ritter Guth. For example, Jean-Claude Bradley performs 'open source' science (see his Useful Chemistry blog) who is not opposed to using closed source software, while the Blue Obelisk is about 'open source' software.