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Ciência cidadã por meio de estações modulares: construindo as condições para um monitoramento meteorológico colaborativo / Citizen science through modular stations : building the conditions for a collaborative meteorological monitoringAlves, Leonardo Sehn January 2018 (has links)
Foi desenvolvido um protótipo de hardware de sistema de monitoramento meteorológico como tecnologia aberta e livre e voltado para a ciência cidadã, chamado de Estações Meteorológicas Modulares (EMM). Foram considerados critérios de acessibilidade dos materiais e facilidade de modificação no desenvolvimento do projeto. Todos os programas utilizados no desenvolvimento são softwares livres. Um dos elementos desenvolvidos, a placa de controle das EMM, possibilita medir diferentes parâmetros meteorológicos, além de realizar o registro dados e envio para um servidor. Também possibilita a inclusão de novos sensores. Por todos esses fatores, é considerada satisfatória quanto a sua funcionalidade. A estrutura mecânica das EMM atingiu um patamar de preço acessível a indivíduos e organizações como escolas e associações de moradores de bairro, e apresenta fácil adaptabilidade a diferentes condições de instalação. O custo total do sistema ficou abaixo de alternativas proprietárias amadoras e significativamente abaixo de alternativas proprietárias profissionais. Soluções acessíveis para alguns elementos da EMM ainda requerem testes mais aprofundados. Parte das ferramentas utilizadas na fabricação da placa de controle ainda carece de maior disseminação junto à sociedade para acessibilizar o sistema das EMM. Os registros de desenvolvimento do trabalho foram feitos em forma de documentação aberta por meio de cadernos de laboratório abertos. As atividades de fabricação, montagem e instalação das EMM foram feitas seguindo métodos colaborativos chamados de Encontros de Fabricação Colaborativa e Mutirões das EMM. O resultado deste trabalho, unindo as documentações, os registros dos métodos colaborativos de fabricação, montagem e instalação e as consolidadas oficinas do projeto, é sintetizado no Guia da Comunidade EMM. Este é um roteiro para quem quiser fazer parte e ampliar uma rede de monitoramento ambiental colaborativo com as EMM, e é baseado em atividades educacionais para compreensão dos diferentes elementos da ferramenta e para a emancipação tecnológica. Uma das EMM foi comparada com uma estação automática oficial do Instituto Nacional de Meteorologia (INMET). Nessas comparações, as medidas de temperatura e pressão atmosférica apresentaram diferenças menores do que a acurácia dos sensores, enquanto a umidade relativa do ar apresentou uma diferença acima da acurácia do sensor. Este foi um primeiro passo de validação das EMM. / It was developed the hardware prototype of a meteorological monitoring system as free and open source hardware with focus on citizen science. The system is called Estações Meteorológicas Modulares (EMM, from Portuguese Modular Meteorological Stations). Affordability and reachability of materials and ease of remix were criteria considered in the development of this project. All the programs used in the development are free software. One of the elements developed, the control board of the EMM, is considered satisfactory in terms of: the parameters it enables to measure, the functionalities of communication and register of data, and the possibility of inclusion of new sensors.. The resulting solution to the mechanical structure of the EMM is low cost, affordable to schools and neighborhood associations, and is easy to adapt to different conditions of installation. The whole cost of the system is lower than proprietary amateur alternatives and significantly lower than proprietary professional solutions. Reachable and affordable solutions to some elements of the EMM still need some deeper testing. Some of the tools used to produce the control board still need a broader dissemination among the society in order to ensure the reachability and affordability of the EMM system. The work development registers were made as open documentation by means of open laboratory notebooks. The EMM fabrication, mounting and installations activities were made as collaborative methods called Encontros de Fabricação Colaborativa (from Portuguese, Collaborative Fabrication Gatherings) and Mutirões of the EMM. The result of this work, merging the documentation, the register of collaborative methods of fabrication, mounting and installations, and the consolidated workshops of the EMM project, are synthesized in the EMM Community Guide. This is a script to the ones who want to make part and expand the collaborative environmental monitoring network with the EMM, and it is based in educational activities to comprehend the different elements of the tool and to promote the technological emancipations. One of the EMM was compared to an official automatic meteorological station from Instituto Nacional de Meteorologia (INMET, from Portuguese Meteorology National Institute). In this comparison, the temperature and atmospheric pressure measurements showed differences lower than the accuracy of the sensors used, and the relative air humidity presented a difference higher than the accuracy of the sensor. This was the first step to validate the EMM.
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In Pursuit of Optimal Workflow Within The Apache Software FoundationJanuary 2017 (has links)
abstract: The following is a case study composed of three workflow investigations at the open source software development (OSSD) based Apache Software Foundation (Apache). I start with an examination of the workload inequality within the Apache, particularly with regard to requirements writing. I established that the stronger a participant's experience indicators are, the more likely they are to propose a requirement that is not a defect and the more likely the requirement is eventually implemented. Requirements at Apache are divided into work tickets (tickets). In our second investigation, I reported many insights into the distribution patterns of these tickets. The participants that create the tickets often had the best track records for determining who should participate in that ticket. Tickets that were at one point volunteered for (self-assigned) had a lower incident of neglect but in some cases were also associated with severe delay. When a participant claims a ticket but postpones the work involved, these tickets exist without a solution for five to ten times as long, depending on the circumstances. I make recommendations that may reduce the incidence of tickets that are claimed but not implemented in a timely manner. After giving an in-depth explanation of how I obtained this data set through web crawlers, I describe the pattern mining platform I developed to make my data mining efforts highly scalable and repeatable. Lastly, I used process mining techniques to show that workflow patterns vary greatly within teams at Apache. I investigated a variety of process choices and how they might be influencing the outcomes of OSSD projects. I report a moderately negative association between how often a team updates the specifics of a requirement and how often requirements are completed. I also verified that the prevalence of volunteerism indicators is positively associated with work completion but what was surprising is that this correlation is stronger if I exclude the very large projects. I suggest the largest projects at Apache may benefit from some level of traditional delegation in addition to the phenomenon of volunteerism that OSSD is normally associated with. / Dissertation/Thesis / Doctoral Dissertation Industrial Engineering 2017
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Att frigöra en byte : En ideologianalys av fri mjukvaraLeickt, Arvid January 2018 (has links)
Denna studie har behandlat fri mjukvara ur ideologanalytiskt perspektiv. Studien bygger på en analys av Free Software Foundation, mjukvaruplattformen GNU samt ett forum som främst diskuterar fri mjukvara. Studien har först och främst behandlat ämnet som en social rörelse, och sökt att förstå de ideologiska resonemangen som görs inom rörelsen, för att kunna se vad rörelsen ställer för krav och hur de önskar att världen ”borde vara”. Genom att använda en så kallad ”diskursiv ideologianalys”, så har materialet sållat fram värden, tankar och idéer. Genom materialet har det funnits en idé att undersöka hur de olika delarna tolkar varandra, och hur ideologin har samspelat mellan dem. Dessa har sedan försökts att förstås och problematiserats genom olika ideologiska texter och teorier, i hoppet om att förstå vad för världsbild som faktiskt konstrueras. Men det har också varit av vikt att undersöka om det faktiskt råder en konsensus i det som har funnits, eller om det istället har handlat om ideologiska krockar inom rörelsen.
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Auditoria e monitoramento de eventos inconsistentes em instâncias de máquinas virtuais em IaaS no Orquestrador Apache CloudStack / Auditing and monitoring of inconsistent events in virtual machine instances in IaaS in the Apache CloudStack OrchestratorPauro, Leandro Luis [UNESP] 06 December 2016 (has links)
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Previous issue date: 2016-12-06 / Cada vez mais a Computação em Nuvem é incorporada pelas empresas como forma econômica e viável de se disponibilizar recursos e serviços. No entanto, a confiabilidade operacional e a disponibilidade de recurso ainda causam preocupação em virtude de ocorrer a inatividade de algum serviço fornecido pela nuvem, o que pode gerar a perda de receitas e desconfiança do cliente. Assim, é crucial que se disponibilize ferramentas a este ambiente para realizar auditoria e monitoramento, a fim de prover a prevenção e a eliminação de inconsistências que possam provocar a indisponibilidade do serviço oferecido. Este trabalho apresenta a ferramenta de Auditoria e Monitoramento em Nuvem Orquestrador Apache CloudStack AMFC, que através do sincronismo das informações do estado atual com dados persistentes do orquestrador, realiza a eliminação de dados sem utilização e inconsistências, diminui o alertas de falso positivo e falso negativo e também proporciona menor custo para armazenamento de dados persistentes da nuvem. Sua eficácia foi evidenciada através da realização de validação manual comparada com o resultado obtido da execução da ferramenta a partir de casos de uso gerados no ambiente de teste controlado. Os resultados obtidos após a realização de 1.320 rotinas administrativas para instância de máquina virtual mostraram a identificação e eliminação das inconsistências na base de dados persistente, a redução do custo de armazenamento e consequentemente, uma base de dados íntegra, que oferece ao administrador da nuvem uma tomada de decisão com maior precisão para averiguar um problema que esteja ocorrendo no ambiente. / Cloud Computing has been increasingly incorporated by companies as an economic and feasible mean to provide resources and services. However, operational reliability and resource availability are still cause for concern since there's the possibility of a cloud service going down, which can lead to loss of revenue and customer distrust. Thus, it is crucial to provide tools for performing auditing and monitoring in order to prevent and eliminate inconsistencies that may cause the unavailability of the service offered. This paper presents the Cloud Orchestrator Auditing and Monitoring Tool Apache CloudStack AMFC, which by synching information current status with the orchestrator persistent data deletes any unused data and inconsistencies, decreases the false positive and negative alerts and also provides lower cost for cloud persistent data storage. Its effectiveness has been demonstrated through manual validation compared to results obtained from running the tool in a controlled test environment. The results obtained after performing 1.320 administrative tasks for a virtual machine were the identification and elimination of inconsistencies in the persistent database, reducing storage costs and, consequently, resulting in an intact database. This enables the cloud administrator to make more accurate decisions when investigating a possible malfunction in the environment.
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The design and implementation of an assessment management module to function within the architectural constraints of an existing Open Source Software (OSS) learning management system (to meet target-user requirements)Zhang, Na January 2004 (has links)
Thesis (MTech (Information Technology))--Peninsula Technikon, 2004 / This dissertation was written in fulfillment of the requirements for the degree
Master of Technology in the Faculty of Information Technology at the Peninsula
Technikon in South Africa.
The dissertation covers the introduction of the study; the reviews of the case,
Free and Open Source Software; the discussion of methodology of software
project management in terms of software engineering; the analysis of
assessment methods; the techniques of using PHP, MySQL, Apache and CVS;
and the implementation of a test module.
The research represents the consideration of the problem, namely that there
are few free assessment manager programmes that can be used for the quick
and efficient deployment of academic assessments. An experimental research
method was used to with the aim of solving the above problem. In other words,
a test management system module had to be designed and implemented to
function within the architectural constraints of a developing Open Source
Software (OSS) Learning Management System (LMS), which is called
Knowledge Environment for Web-based Learning Next Generation
(KEWL.NextGen).
The test management system is a module developed on Object-Oriented
Programming (OOP) in PHP and MySQL application. The scripts of this test
module are written under the KEWL.NextGen' application framework, which is
based on a close approximation of model, view and controller (MVC) design
III
pattem. Now the entire source coding of the test module has been uploaded to
Web site http://kngforge.uwc.ac.za.
This test module can be used for the creation and management of an online
test. It provides facilities to create a new test, and to preview, edit, delete and
mark an existing test. Three question types have been achieved, namely
multiple-choice, true/false and short answer.
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The design and implementation of a discussion forum module to function within the architectural constraints of an existing Open Source Software (OSS) learning management system (to meet target-user requirements)Wang, Zhanyu January 2004 (has links)
Thesis (MTech (Information Technology))--Peninsula Technikon,Cape Town, 2004 / Higher education and online discussions are an integral part of collaboratively
based e-Learning systems. However, there problems can be associated with
current online discussion models. For example, it can be easy to set
open-ended discussions which attract little participation and to assess
contributions can be difficult or time-consuming. Students may not achieve the
expected learning outcomes without proper structure and management in
online discussions.
This paper proposes to design and implement a discussion forum object to
function within the architectural constraints of an existing Oss learning
management system (to meet target user requirements) that is a web-based
environment for online discussions where the facilitator can structure each
discussion according to its nature and where learning requirements are using
already designed templates.
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The design and implementation of an assignment management module to function within the architectural constraints of an existing Open Source Software (OSS) learning management system (to meet target-user requirements)Sun, Ke January 2004 (has links)
Thesis (MTech (Information Technology))--Peninsula Technikon, Cape Town, 2004 / This document describes the design and implementation of an Assignment
Management Module (AMM) to function within the architectural constraints of
an eXisting open-source software (OSS) Leaming Management System (LMS).
The project is established for Infonmation Technology Department Master
Degree Project of the Peninsula Technikon.
The Assignment Management Module will be constructed in orders to make it
easier to create, mark, and manage assignments and record individual student
perfonmances. The design entailed work on different function blocks like a
user's authorisation, files uploadfdownload and mailing reminder unit as well
as writing and testing of the application code on the intemet/intranet. The
development process of the project to explore how to fu lfi11 software
engineering methodology in an open-source environment, also presents
details of the design architecture and technologies to be used, as well as being
mindful of its future directions.
The target audience of this document is anyone with an interest in an
open-source software project in general, and in a Learning Management
System in particular. If the reader has also been a contributor to Learning
Management System, and especially to the management of assignments, this
document may provide additional value, in that it strives to present a new
approach to the understanding of such a module.
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Ciência cidadã por meio de estações modulares: construindo as condições para um monitoramento meteorológico colaborativo / Citizen science through modular stations : building the conditions for a collaborative meteorological monitoringAlves, Leonardo Sehn January 2018 (has links)
Foi desenvolvido um protótipo de hardware de sistema de monitoramento meteorológico como tecnologia aberta e livre e voltado para a ciência cidadã, chamado de Estações Meteorológicas Modulares (EMM). Foram considerados critérios de acessibilidade dos materiais e facilidade de modificação no desenvolvimento do projeto. Todos os programas utilizados no desenvolvimento são softwares livres. Um dos elementos desenvolvidos, a placa de controle das EMM, possibilita medir diferentes parâmetros meteorológicos, além de realizar o registro dados e envio para um servidor. Também possibilita a inclusão de novos sensores. Por todos esses fatores, é considerada satisfatória quanto a sua funcionalidade. A estrutura mecânica das EMM atingiu um patamar de preço acessível a indivíduos e organizações como escolas e associações de moradores de bairro, e apresenta fácil adaptabilidade a diferentes condições de instalação. O custo total do sistema ficou abaixo de alternativas proprietárias amadoras e significativamente abaixo de alternativas proprietárias profissionais. Soluções acessíveis para alguns elementos da EMM ainda requerem testes mais aprofundados. Parte das ferramentas utilizadas na fabricação da placa de controle ainda carece de maior disseminação junto à sociedade para acessibilizar o sistema das EMM. Os registros de desenvolvimento do trabalho foram feitos em forma de documentação aberta por meio de cadernos de laboratório abertos. As atividades de fabricação, montagem e instalação das EMM foram feitas seguindo métodos colaborativos chamados de Encontros de Fabricação Colaborativa e Mutirões das EMM. O resultado deste trabalho, unindo as documentações, os registros dos métodos colaborativos de fabricação, montagem e instalação e as consolidadas oficinas do projeto, é sintetizado no Guia da Comunidade EMM. Este é um roteiro para quem quiser fazer parte e ampliar uma rede de monitoramento ambiental colaborativo com as EMM, e é baseado em atividades educacionais para compreensão dos diferentes elementos da ferramenta e para a emancipação tecnológica. Uma das EMM foi comparada com uma estação automática oficial do Instituto Nacional de Meteorologia (INMET). Nessas comparações, as medidas de temperatura e pressão atmosférica apresentaram diferenças menores do que a acurácia dos sensores, enquanto a umidade relativa do ar apresentou uma diferença acima da acurácia do sensor. Este foi um primeiro passo de validação das EMM. / It was developed the hardware prototype of a meteorological monitoring system as free and open source hardware with focus on citizen science. The system is called Estações Meteorológicas Modulares (EMM, from Portuguese Modular Meteorological Stations). Affordability and reachability of materials and ease of remix were criteria considered in the development of this project. All the programs used in the development are free software. One of the elements developed, the control board of the EMM, is considered satisfactory in terms of: the parameters it enables to measure, the functionalities of communication and register of data, and the possibility of inclusion of new sensors.. The resulting solution to the mechanical structure of the EMM is low cost, affordable to schools and neighborhood associations, and is easy to adapt to different conditions of installation. The whole cost of the system is lower than proprietary amateur alternatives and significantly lower than proprietary professional solutions. Reachable and affordable solutions to some elements of the EMM still need some deeper testing. Some of the tools used to produce the control board still need a broader dissemination among the society in order to ensure the reachability and affordability of the EMM system. The work development registers were made as open documentation by means of open laboratory notebooks. The EMM fabrication, mounting and installations activities were made as collaborative methods called Encontros de Fabricação Colaborativa (from Portuguese, Collaborative Fabrication Gatherings) and Mutirões of the EMM. The result of this work, merging the documentation, the register of collaborative methods of fabrication, mounting and installations, and the consolidated workshops of the EMM project, are synthesized in the EMM Community Guide. This is a script to the ones who want to make part and expand the collaborative environmental monitoring network with the EMM, and it is based in educational activities to comprehend the different elements of the tool and to promote the technological emancipations. One of the EMM was compared to an official automatic meteorological station from Instituto Nacional de Meteorologia (INMET, from Portuguese Meteorology National Institute). In this comparison, the temperature and atmospheric pressure measurements showed differences lower than the accuracy of the sensors used, and the relative air humidity presented a difference higher than the accuracy of the sensor. This was the first step to validate the EMM.
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GIMP - tvorba výukových materiálů pro ZŠ / GIMP - creation of teaching materials for elementary schoolMATĚJKOVÁ, Anna January 2009 (has links)
The goal of this Diploma thesis is to create suitable materials that could be used by teachers teaching the program GIMP at elementary schools. GIMP graphic editor is an open source program released under the GPL licence and is used for raster graphics tool. Its quality is comparable to many other similar top graphic editors that, contrary to GIMP, are not for free.
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A utilização de Open Source GIS na mineração: prospecção regional de Pegmatitos da Faixa Seridó ParaibanaDIAS FILHO, Luiz Fernando 29 February 2016 (has links)
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Previous issue date: 2016-02-29 / A fase inicial de um empreendimento mineiro demanda um forte
investimento com retorno bastante incerto, pois é necessária a aquisição
de dados para localizar, delimitar e estimar os volumes das reservas
minerais de interesse. Visando reduzir estes custos e diminuir as incertezas
características de uma fase em que se tem pouca informação, esta
pesquisa propõe o uso de Open Source GIS, também conhecidos como
Sistemas de Informações Geográfica de Código Aberto, combinado com a
aquisição de dados geoespaciais gratuitos de fontes públicas e oficiais,
para posterior processamento e refinamento de informações. Para a
composição deste trabalho foi realizada aquisição de dados públicos
disponíveis sobre a região dos corpos Pegmatitos da Fazenda Primavera,
localizada na Província Pegmatítica da Borborema, no município de
Tenório, Paraíba. Os dados foram utilizados para a produção e refinamento
de informações como a delimitação e localização dos corpos, realização de
estudos geomorfológicos, logísticos e estimação de volumes. Os
processamentos das imagens e dados, além da confecção de mapas, e
análises tridimensionais dos afloramentos foram executados em um único
programa, o software livre Quantum GIS. Os produtos gerados permitiram
concluir que é possível extrair e produzir informação de elevada qualidade
a partir de dados disponíveis de forma gratuita, utilizando softwares oficiais,
reduzindo os custos iniciais de um projeto de mineração, podendo continuar
a ser utilizados nas fases posteriores, caso o empreendimento mineral se
prove viável. / The initial phase of a mining project requires a strong investment with a very
uncertain feedback because it is necessary the data acquisition to locate,
define and estimate the volumes of mineral reserves of interest. In order to
reduce these costs and reduce the characteristic uncertainties of a stage
where there is little information, this research proposes the use of Open
Source GIS (Geographic Information Systems), combined with the
acquisition of free geospatial data from public and official sources for further
processing and refinement of information. For the composition of this
research it has been carried out the acquisition of public available
information about the region of pegmatites bodies at the “Fazenda
Primavera”, located at the Borborema Pegmatitic Province, Tenório county,
Paraíba. The data have been used for the production and processing of
information as the delimitation and location of pegmatites, realization of
geomorphological and logistic studies, and estimation of volumes. The
processing of the images and data besides maps making and threedimensional
analyzing of outcrops were executed in a single program, the
free Quantum GIS software. The created products allowed the conclusion
that it is possible to extract and produce high-quality information from free
available data, using official software, reducing the initial costs of a mining
project, which may continue to be used in later phases if the mineral project
proves to be feasible.
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