scholarly journals Free Open-Source High – Availability Solution for Java Web Application Using Tomcat And MySQL

2021 ◽  
Vol 7 (1) ◽  
pp. 68-77
Author(s):  
Dhanny Dhanny ◽  
Sandi Badiwibowo Atiim
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Web Application ◽  
Web Applications ◽  
High Availability ◽  
Application System ◽  
Small Organizations ◽  
The Past ◽  
Web Application System ◽  
Free Open Source

With the growth of the internet, the number of web applications is also growing. Many web applications are becoming more important to the stakeholders that they cannot afford downtime which can cause loss of revenue, loss of productivity, etc. In the past, only big organizations with deep pocket could afford implement high-availability for their web application, but nowadays there are free open-source software programs that support high-availability feature available to everyone. This research studied the feasibility of implementing high-availability for Java web application system without using commercial software. This research compared the capability of proprietary and free open-source high-availability solution for Java web application based on a simple high-availability design, where a test Java web application was deployed into the environment based on proprietary and free open-source solutions, and tested how well each solution perform when problem occurs. The result showed that the free open-source high-availability solution worked, but not as well as proprietary one. However, the proprietary high-availability solution for database did not perform well, and neither did the open-source one. This research concludes that the free open-source high-availability solution works and thus made high-availability become much more affordable, especially for individual or small organizations with budget constraints.

scholarly journals Shadow netWorkspace: An open source intranet for learning communities

2006 ◽  
Vol 32 (1) ◽  
Author(s):  
James M Laffey ◽  
Dale Musser
Keyword(s):  
Learning Community ◽  
Open Source ◽  
Open Source Software ◽  
Web Application ◽  
Lessons Learned ◽  
Network Services ◽  
Educational Organizations ◽  
Application System ◽  
Web Application System ◽  
Ongoing Project

Shadow netWorkspace (SNS) is a web application system that allows a school or any type of community to establish an intranet with network workspaces for all members and groups. The goal of SNS has been to make it easy for schools and other educational organizations to provide network services in support of implementing a learning community. SNS is open source software using the GNU General Public License (GPL). The software is freely available, and can be downloaded and distributed under the terms of the GPL. SNS is an ongoing project and this instructional development report describes the system, some ways that it is being used, and some key lessons learned from the development and initial deployment of SNS.

Web Application Dashboards

2014 ◽  
Vol 3 (1) ◽  
pp. 186-190
Author(s):  
Todd C. Hughes ◽  
Tina Coleman ◽  
David Benjamin Hellar ◽  
Laurian C. Vega ◽  
Emily S. Patterson
Keyword(s):  
Health Care ◽  
Open Source Software ◽  
Web Application ◽  
Web Applications ◽  
Situational Awareness ◽  
Operational Planning ◽  
Intelligence Analysis ◽  
Information Analysis ◽  
Free Open Source Software ◽  
Free Open Source

The Ozone Widget Framework (OWF) is a dashboard environment that enables users to select and arrange web applications in a highly customized way. OWF is available as Free Open Source Software and has been deployed in a variety of defense and intelligence analysis environments ranging from real-time analytics, cyber-situational awareness, to strategic and operational planning. These environments share characteristics with the information analysis and workflow needs of health care. This paper discusses those similarities and the current and future possibilities for OWF usage in health care.

scholarly journals VisWebDrone: A Web Application for UAV Photogrammetry Based on Open-Source Software

2020 ◽  
Vol 9 (11) ◽  
pp. 679
Author(s):  
Nathalie Guimarães ◽  
Luís Pádua ◽  
Telmo Adão ◽  
Jonáš Hruška ◽  
Emanuel Peres ◽  
...  
Keyword(s):  
Data Processing ◽  
Open Source ◽  
Unmanned Aerial Vehicle ◽  
Open Source Software ◽  
Large Volume ◽  
Web Application ◽  
Web Applications ◽  
Aerial Vehicle ◽  
Key Driver

Currently, the use of free and open-source software is increasing. The flexibility, availability, and maturity of this software could be a key driver to develop useful and interesting solutions. In general, open-source solutions solve specific tasks that can replace commercial solutions, which are often very expensive. This is even more noticeable in areas requiring analysis and manipulation/visualization of a large volume of data. Considering that there is a major gap in the development of web applications for photogrammetric processing, based on open-source technologies that offer quality results, the application presented in this article is intended to explore this niche. Thus, in this article a solution for photogrammetric processing is presented, based on the integration of MicMac, GeoServer, Leaflet, and Potree software. The implemented architecture, focusing on open-source software for data processing and for graphical manipulation, visualization, measuring, and analysis, is presented in detail. To assess the results produced by the proposed web application, a case study is presented, using imagery acquired from an unmanned aerial vehicle in two different areas.

scholarly journals SENTIMENT ANALYSIS OF FREE/OPEN SOURCE DEVELOPERS: PRELIMINARY FINDINGS FROM A CASE STUDY

2014 ◽  
Vol 13 (2) ◽  
Author(s):  
Athanasios-Ilias Rousinopoulos ◽  
Gregorio Robles ◽  
Jesús M. González-Barahona
Keyword(s):  
Sentiment Analysis ◽  
Open Source ◽  
Open Source Software ◽  
Free Open Source Software ◽  
Free Open Source

O desenvolvimento de software é uma atividade intensive em esforço humano. Assim, a forma como os desenvolvedores encaram suas tarefas é de suam importância. Em um ambiente como o usual em projetos de FOSS (free/open source software) em que profissionais (desenvolvedores pagos) compartilham os esforços de desenvolvimento com voluntários, a moral da comunidade de desenvolvedores e usuários é fundamental. Neste artigo, apresentamos uma análise preliminary utilizando técnicas de análise de sentimentos realizada em um projeto de FOSS. Para isso, executamos a mineração da lista de endereços eletrônicos de um projeto e aplicamos as técnicas propostas aos participantes mais relevantes. Embora a aplicação seja limitada, no momento atual, experamos que essa experiência possa ser benéfica no future para determiner situações que possam afetar os desenvolvedores ou o projeto, tais como baixa produtividade, abandono do projeto ou bifurcação do projeto, entre outras.

scholarly journals CACTI: Free, Open-Source Software for the Sequential Coding of Behavioral Interactions

PLoS ONE ◽  
2012 ◽  
Vol 7 (7) ◽  
pp. e39740 ◽  
Author(s):  
Lisa H. Glynn ◽  
Kevin A. Hallgren ◽  
Jon M. Houck ◽  
Theresa B. Moyers
Keyword(s):  
Open Source ◽  
Open Source Software ◽  
Behavioral Interactions ◽  
Free Open Source Software ◽  
Free Open Source
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