scholarly journals TANK INFORMATION SYSTEM (TIS): A CASE STUDY IN MIGRATING WEB MAPPING APPLICATION FROM FLEX TO DOJO FOR ARCGIS SERVER AND THEN TO OPEN SOURCE

2017 ◽  
Vol IV-4/W4 ◽  
pp. 311-317
Author(s):  
B. R. Pulsani
Keyword(s):  
Information System ◽  
Open Source ◽  
Web Application ◽  
Web Applications ◽  
Migration Pattern ◽  
The Public ◽  
Web Mapping ◽  
Comprehensive Information ◽  
Arcgis Server

Tank Information System is a web application which provides comprehensive information about minor irrigation tanks of Telangana State. As part of the program, a web mapping application using Flex and ArcGIS server was developed to make the data available to the public. In course of time as Flex be-came outdated, a migration of the client interface to the latest JavaScript based technologies was carried out. Initially, the Flex based application was migrated to ArcGIS JavaScript API using Dojo Toolkit. Both the client applications used published services from ArcGIS server. To check the migration pattern from proprietary to open source, the JavaScript based ArcGIS application was later migrated to OpenLayers and Dojo Toolkit which used published service from GeoServer. The migration pattern noticed in the study especially emphasizes upon the use of Dojo Toolkit and PostgreSQL database for ArcGIS server so that migration to open source could be performed effortlessly. The current ap-plication provides a case in study which could assist organizations in migrating their proprietary based ArcGIS web applications to open source. Furthermore, the study reveals cost benefits of adopting open source against commercial software's.

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.

Performance Comparison of Web Backend And Database: A Case Study Of Node.JS, Golang and MySQL, MongoDB

2019 ◽  
Vol 13 ◽  
Author(s):  
Faried Effendy ◽  
Taufik ◽  
Bramantyo Adhilaksono
Keyword(s):  
Response Time ◽  
Open Source ◽  
Poisson Distribution ◽  
Mobile Application ◽  
Web Applications ◽  
Performance Comparison ◽  
Memory Usage ◽  
Data Traffic ◽  
Cpu Utilization

: Substantial research has been conducted to compare web servers or to compare databases, but very limited research combines the two. Node.js and Golang (Go) are popular platforms for both web and mobile application back-ends, whereas MySQL and Go are among the best open source databases with different characters. Using MySQL and MongoDB as databases, this study aims to compare the performance of Go and Node.js as web applications back-end regarding response time, CPU utilization, and memory usage. To simulate the actual web server workload, the flow of data traffic on the server follows the Poisson distribution. The result shows that the combination of Go and MySQL is superior in CPU utilization and memory usage, while the Node.js and MySQL combination is superior in response time.

An open-source R-package and web application for high-quality probabilistic predictions in hydrology

2021 ◽  
Author(s):  
Jason Hunter ◽  
Mark Thyer ◽  
Dmitri Kavetski ◽  
David McInerney
Keyword(s):  
Open Source ◽  
Web Application ◽  
R Package ◽  
Error Model ◽  
Objective Functions ◽  
High Quality ◽  
Wide Range ◽  
Probabilistic Error

<p>Probabilistic predictions provide crucial information regarding the uncertainty of hydrological predictions, which are a key input for risk-based decision-making. However, they are often excluded from hydrological modelling applications because suitable probabilistic error models can be both challenging to construct and interpret, and the quality of results are often reliant on the objective function used to calibrate the hydrological model.</p><p>We present an open-source R-package and an online web application that achieves the following two aims. Firstly, these resources are easy-to-use and accessible, so that users need not have specialised knowledge in probabilistic modelling to apply them. Secondly, the probabilistic error model that we describe provides high-quality probabilistic predictions for a wide range of commonly-used hydrological objective functions, which it is only able to do by including a new innovation that resolves a long-standing issue relating to model assumptions that previously prevented this broad application.  </p><p>We demonstrate our methods by comparing our new probabilistic error model with an existing reference error model in an empirical case study that uses 54 perennial Australian catchments, the hydrological model GR4J, 8 common objective functions and 4 performance metrics (reliability, precision, volumetric bias and errors in the flow duration curve). The existing reference error model introduces additional flow dependencies into the residual error structure when it is used with most of the study objective functions, which in turn leads to poor-quality probabilistic predictions. In contrast, the new probabilistic error model achieves high-quality probabilistic predictions for all objective functions used in this case study.</p><p>The new probabilistic error model and the open-source software and web application aims to facilitate the adoption of probabilistic predictions in the hydrological modelling community, and to improve the quality of predictions and decisions that are made using those predictions. In particular, our methods can be used to achieve high-quality probabilistic predictions from hydrological models that are calibrated with a wide range of common objective functions.</p>

scholarly journals Designing Web Based Offering and Sales Information System (Case Study : PT. Daya Berkah Sentosa Nusantara)

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Siti Nurjanah Ramadhany ◽  
Ade Eviyanti
Keyword(s):  
Information System ◽  
Data Collection ◽  
Positive Impact ◽  
Literature Study ◽  
Web Based ◽  
Business World ◽  
The Public ◽  
To Come ◽  
Over Time

Technology is increasingly sophisticated with over time competition in the business world such as E-Commerce has a positive impact on entrepreneurs to advance their companies, namely by creating online websites so that offerings and sales are easy among the public. By accessing the website page of PT. Daya Berkah Sentosa Nusantara buyers do not have to come directly to the place or company, and send offers according to admin needs.The purpose of this study is to make it easier for researchers to solve supply and sales problems based on problems that arise in the company. The method used in this study is the Waterfall Method, with data collection techniques used using observation, interviews and literature study. The desired result of this research is to be able to create a website for the company, to be able to expand marketing reach, buyers can view products through the website.

Applying the WDP Technique to Usability Inspections in Web Development Organizations

2010 ◽  
pp. 324-344 ◽  
Author(s):  
Tayana Conte ◽  
Verônica T. Vaz ◽  
Jobson Massolar ◽  
Andrew Bott ◽  
Emilia Mendes ◽  
...  
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Evaluation Method ◽  
Web Design ◽  
Usability Evaluation ◽  
Heuristic Evaluation ◽  
Web Development ◽  
Industrial Case Study ◽  
Development Organizations

This chapter presents the WDP (Web Design Perspectives-based Usability Evaluation), an inspection technique specifically designed to assess the usability of Web applications. This technique combines Web design perspectives and the heuristic evaluation method proposed by Nielsen (1994b). In addition to describing the components of the WDP technique this chapter also illustrates its use in practice by means of an industrial case study where the technique is applied to inspect a real Web application. In this case study, developers and requirement assessment staff applied the WDP technique to evaluate the usability of modules developed from scratch for a Web application. The results of this case study indicate the feasibility of performing usability inspections with the participation of a software project’s stakeholders, even when stakeholders are not usability experts.

Research and Implementation of Public Transport Query System Based on PHP

2014 ◽  
Vol 687-691 ◽  
pp. 1856-1859
Author(s):  
Lin Zhu
Keyword(s):  
Information System ◽  
Research And Development ◽  
Data Management ◽  
Public Transport ◽  
Economic Activities ◽  
Technology Design ◽  
Related Research ◽  
The Public ◽  
Query System

Public transport query system is the information system is dedicated to serving the public travel, it is an important part of city social and economic activities. In Hubei province, Lard city as a case study and implementation of transit oriented users query system, mainly the use of YHY technology, design and development of Apache +MySQL in +YHY environment. The system can realize the line inquiry, site query, transfer query and data management and other functions, is feasible and good expansibility, and provides the beneficial reference for the related research and development information system.

scholarly journals OPEN SOURCE WEB-BASED SOLUTIONS FOR DISSEMINATING AND ANALYZING FLOOD HAZARD INFORMATION AT THE COMMUNITY LEVEL

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 91-97
Author(s):  
M. M.-M.-Santillan ◽  
J. R. Santillan ◽  
E. M. O. Morales
Keyword(s):  
Open Source ◽  
Web Application ◽  
Information Dissemination ◽  
Flood Hazard ◽  
Meteorological Data ◽  
Simulation Models ◽  
Web Based ◽  
Household Level ◽  
Systematic Assessment ◽  
Web Mapping

We discuss in this paper the development, including the features and functionalities, of an open source web-based flood hazard information dissemination and analytical system called “Flood EViDEns”. Flood EViDEns is short for “Flood Event Visualization and Damage Estimations”, an application that was developed by the Caraga State University to address the needs of local disaster managers in the Caraga Region in Mindanao, Philippines in accessing timely and relevant flood hazard information before, during and after the occurrence of flood disasters at the community (i.e., barangay and household) level. The web application made use of various free/open source web mapping and visualization technologies (GeoServer, GeoDjango, OpenLayers, Bootstrap), various geospatial datasets including LiDAR-derived elevation and information products, hydro-meteorological data, and flood simulation models to visualize various scenarios of flooding and its associated damages to infrastructures. The Flood EViDEns application facilitates the release and utilization of this flood-related information through a user-friendly front end interface consisting of web map and tables. A public version of the application can be accessed at <a href="http://121.97.192.11:8082/"target="_blank">http://121.97.192.11:8082/</a>. The application is currently expanded to cover additional sites in Mindanao, Philippines through the “Geo-informatics for the Systematic Assessment of Flood Effects and Risks for a Resilient Mindanao” or the “Geo-SAFER Mindanao” Program.

scholarly journals Comparative analysis of QGIS plugins for Web Maps creation

La Granja ◽  
2021 ◽  
Vol 34 (2) ◽  
pp. 8-26
Author(s):  
Lia Duarte ◽  
Catarina Queirós ◽  
Ana Cláudia Teodoro
Keyword(s):  
Information System ◽  
Comparative Analysis ◽  
Geographic Information System ◽  
Open Source ◽  
Open Source Software ◽  
Geographic Information ◽  
Geospatial Data ◽  
Advantages And Disadvantages ◽  
Gis Software

QGIS is a free and open-source software that allows viewing, editing, and analyzing georeferenced data. It is a Geographic Information System (GIS) software composed by tools that allow to manipulate geographic information and consequently to create maps which help to get a better understanding and organization of geospatial data. Unfortunately, maps created directly in the GIS desktop software are not automatically transferred to a website. This research aimed to compare publishing capabilities in different QGIS plugins to create Web Maps. This study analyzes four QGIS plugins (QGIS2Web, QGIS Cloud, GIS Cloud Publisher and Mappia Publisher), performing a comparison between them, considering their advantages and disadvantages, the free and subscription plans, the tools offered by each plugin and other generic aspects. The four plugins were tested in a specific case study to automatically obtain different Web Maps. This study could help users to choose the most adequate tools to publish Web Maps under QGIS software.

scholarly journals IPTEKS BAGI MASYARAKAT DESA MLATIHARJO MENUJU PENGELOLAAN KOMODITAS DESA BERBASIS DIGITAL

CCIT Journal ◽  
2018 ◽  
Vol 11 (2) ◽  
pp. 143-157
Author(s):  
Suprihadi Suprihadi ◽  
Radius Tanone ◽  
Rudy Latuperissa
Keyword(s):  
Information System ◽  
Information Exchange ◽  
Mobile Application ◽  
Web Application ◽  
Group Discussion ◽  
Computer Application ◽  
The Public ◽  
Central Java ◽  
Transfer Of Technology ◽  
Exchange Medium

Mlatiharjo is a village in Demak District, Central Java province, it has been well-known as an innovative village because of their various innovations especially in high quality (supreme) seed varieties of fruit and rice. In order to support the production and cultivation of those commodities, information management has been employed but still in simple ways and doesn’t have any information system yet, therefore it often causes mistake in their production estimation. It will impact to their sales service of their commodities toward the buyer, particularly the customer. Another problem is Mlatiharjo’s farmer group does not have  any information exchange medium to interact with other business actors who comes from outside their area, whereas those outsider-business actors will buy their product with a higher price. Mlatiharjo’s IbM Program aims to build an Information System which is able to manage the information of Mlatiharjo’s commodities production, especially in farming production. The method employed for developing the system is Prototyping. Meanwhile, the transfer of technology employs mentoring process for the client of program through conducting focus group discussion, workshop dan training. This Commodity Information System is implemented into two kinds of computer application. Firstly, web application that is used for managing the data center and share it to the public who want to capture the information of the mlatiharjo’s product. Secondly, android based mobile application utilized by the farmer who has become a member of cluster-farming group to input the location area mapping data and progress report of production data and also provide a discussion forum among member of the system. The Web Application is built using PHP and the database used MySQL. Mobile Application is implemented using Java Android. As a result, Tani Mahardika Cluster and KSU Citra Kinaraya – Mlatiharjo have a digital-based system to manage their Commodity in order to encourage and strengthen business-production institution through Commodity Information System

scholarly journals Digital forestry maps representation using web mapping services

2008 ◽  
Vol 56 (2) ◽  
pp. 293-298 ◽  
Author(s):  
Martin Klimánek ◽  
Miloš Cibulka
Keyword(s):  
Information System ◽  
Web Applications ◽  
Geospatial Data ◽  
Geographical Information ◽  
University Of Minnesota ◽  
Development Environment ◽  
Gis And Remote Sensing ◽  
Web Mapping ◽  
The University ◽  
University Training

The Web Mapping Services (WMS) are very useful means for presentation of digital geospatial data in the Internet environment. Typical Open Source example of these services is development environment MapServer, which was originally developed by the University of Minnesota ForNet project in cooperation with NASA and the Minnesota Department of Natural Resources. MapServer is not a full-featured Geographical Information System (GIS), but provides the core functionality to support a wide variety of web applications. Complex and open information system about forest (and cultural) land is presented in real example of MapServer application with data from the Mendel University Training Forest. MapServer is used in effective representing of data for the University Forest staff, students and general public from October 2002. MapServer is usually applied in education process of GIS and Remote Sensing and for sharing of the Faculty of Forestry and Wood Technology Departments geospatial data.

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