Comparing Web GIS systems for display and processing geographic information in the context of INDE

Fonseca, Fabio J. B.; Pereira, Lucas V. S.; Filho, Jugurta Lisboa; Alves, Alisson Rubson

doi:10.1109/cisti.2016.7521556

Cited by 1 publication

(4 citation statements)

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“…This way, replacing a component with a certain technology by another with a different technology does not significantly impact the SDI. The choices of technologies to create the technologies' diagrams were based on the comparison of software described in the paper by Fonseca et al [27] and on the company's ease and familiarity in using them. The new functionalities in the project can be included by creating new components, as long as they have a communication interface in common and work in a service-oriented fashion.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

“…To the servers MapsManagerServer, CataloguerServer and DataServer, the software MapServer (http://www.mapserver.org), GeoNetwork (http://geonetwork-opensource.org) and PostgreSQL (http://www.postgresql.org), respectively, were assigned. Those software packages, according to Fonseca et al [27], are quite adequate as components in the construction of SDIs. Aiming to meet the need to replicate data from the Engineering viewpoint, the server DataServer uses the technology Redundant Array of Independent Disks (RAID) for the component Storage [28].…”

Section: Technology Viewpointmentioning

confidence: 99%

“…The component RemoteSystem has the element BrowserRequest, which is represented by a browser using Hypertext Markup Language 5 (HTML5) to access the system via the web. The component ServiceRequest represents software that uses the communication standards WMS and WMF and standards for access to geographic information by services so that the components are compatible with several GIS and map servers [27]. The components CemigLAN, WAN, InternalFirewall and ExternalFirewall have no extra specification as they are established standards representing networks and firewalls.…”

Section: Technology Viewpointmentioning

confidence: 99%

“…In order to build the internal components of the servers PortalCemigServer, CataloguerServer and DataServer, which have specialized purposes, technologies suggested by Fonseca et al [27] were chosen, which are in accordance with the restrictions imposed by Cemig. The server PortalCemigServer contains the components PresentationWeb and Control.…”

Section: Technology Viewpointmentioning

confidence: 99%

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Design of a Corporate SDI in Power Sector Using a Formal Model

et al. 2017

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Geospatial data are essential for the decision-making process. However, obtaining and keeping such data up to date usually require much time and many financial resources. In order to minimize the production costs and incentivize sharing these data, countries are promoting the implementation of Spatial Data Infrastructures (SDI) at the different public administration levels. The International Cartographic Association (ICA) proposes a formal model that describes the main concepts of an SDI based on three of the five viewpoints of the Reference Model for Open Distributed Processing (RM-ODP). Afterwards, researchers extended ICA's model to describe, more properly, the actors, hierarchical relationship and interactions related to the policies that drive an SDI. However, the proposed extensions are semantically inconsistent with the original proposal. Moreover, the use of ICA's formal model and its extensions has not been assessed yet to specify a corporate-level SDI. This study describes the merger of actors and policies proposed by the ICA and its extensions in order to eliminate differences in the semantics or terminology among them. This unified model was applied to specify a corporate SDI for a large Brazilian corporation, the Minas Gerais Power Company (Companhia Energética de Minas Gerais (Cemig)), which is comprised of about 200 companies in the power sector. The case study presents part of the specification of the five RM-ODP viewpoints, i.e., the three viewpoints featured in ICA's formal model (Enterprise, Information, and Computation) and the other two viewpoints that make up the RM-ODP (Engineering and Technology). The adapted ICA's model proved adequate to describe SDI-Cemig. In addition, the case study may serve as an example of the specification and implementation of new SDIs, not only corporate ones, but also of public agencies at any hierarchical level.

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Section: Discussion Of the Resultsmentioning

confidence: 99%

Section: Technology Viewpointmentioning

confidence: 99%

Section: Technology Viewpointmentioning

confidence: 99%

Section: Technology Viewpointmentioning

confidence: 99%

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