5 documents found in 112ms
# 1
Willmes, Christian • Yener, Yasa • Gilgenberg, Anton • Bareth, Georg
Abstract: The Collaborative Research Centre 806 database (CRC806-Database, http://crc806db.uni-koeln.de) is online and operating since 2011. The architecture consists of a Typo3 based website frontend, a CKAN based metadata storage and an OGC compliant Spatial Data Infrastructure (SDI). It was decided to update the system with some major changes to the overall architecture, by preserving the current API functionality and the URLs of the datasets in the database. This paper describes the system architecture of the partly new implementation of the CRC806-Database. The SDI part of the system is migrated from the current MapServer, GeoServer, MapProxy and pyCSW based implementation to a GeoNode based system. Additionally the Typo3 based frontend of the web portal is changed to use mostly server side Extbase and Fluid based content handling and rendering, instead of the current AgularJS based frontend. Due to stability and consistency difficulties of client side rendering we decided to build a more robust system and move to server side rendering. The reasons for migrating to GeoNode for the SDI stack and away from JavaScript based client side to a server side rendering are discussed by taking into account pro and contra of both approaches, as well as a list of lessons learned from the ongoing development and operation of the CRC806-Database.
Proceedings of the 2nd Data Management Workshop, 28.-29.11.2014, University of Cologne, Germany, Kölner Geographische Arbeiten, 96, pp. 115-126
# 2
Märker, Michael • Willmes, Christian • Hochschild, Volker • Bareth, Georg
Abstract: In the recent past database (DB) systems providing information on early humans and their environment are becoming more and more important and increase rapidly in number. However, this increase in different DB systems is concomitant with an increasing redundancy in the digital information stored in these database systems. Therefore, in this study we explore ways to reduce redundancies due to multiple storage of data and, hence, we show solutions to minimize the requirements to store and manage digital information in the prehistory and paleoenvironment domains. The example is based on the database systems of the DFG financed SFB 806: ‘Our Way to Europe’ and the Heidelberg Academy of Sciences and Humanities project entitled: ‘The Role Of Culture in Early Expansion of Humans’ (ROCEEH). We focus especially on the spatial data available in both systems as well as on the environmental information. Therefore, we examine and test exchange interfaces based on Spatial Data Infrastructure technology (OGC Standards) and metadata/schema mappings. The paper presents currently implemented interfaces of both database systems in terms of their main commonalities and differences. Based on this overview, we discuss ways of direct links between the DB systems. Moreover, we identify procedures that need to be developed in the future to integrate and exchange data between both systems. We show that DB-linking activities based on the OGC standards yield valuable results and lead to a more efficient, sustainable management of these DB systems providing added values for the related research groups.
Proceedings of the 2nd Data Management Workshop, 28.-29.11.2014, University of Cologne, Germany, Kölner Geographische Arbeiten, 96, pp. 55-61
# 3
Curdt, Constanze • Willmes, Christian
Abstract: The 2nd Data Management Workshop was held at the University of Cologne in November 2014. It was organized within the research data management activities of two large interdisciplinary research projects both funded by the German Research Foundation (DFG). Both projects actively supported the workshop. The Collaborative Research Centre/Transregio 32 ‘Patterns in Soil-Vegetation-Atmosphere Systems: Monitoring, Modelling and Data Assimilation’ involves scientist from the fields of meteorology, hydrology, geography, geophysics, soil sciences and mathematics. The CRC806 ‘Our Way to Europe: Culture-Environment Interaction and Human Mobility in the Late Quaternary’ integrates scientists from the disciplines of prehistoric archaeology, geology, geography, geophysics and soil sciences. Organizing research data management of such diverse disciplines which are distributed over several universities and research centers faces several problems and challenges. Consequently, the main focus of the 2nd Data Management Workshop was to discuss solutions and approaches for interdisciplinary and disciplinary data management with other colleagues and experts of the field. The publication of the Special Issue on ‘Research Data Management’ of the ISPRS International Journal of Geo-Information (ISSN 2220-9964) emerged in the context of this workshop.
Proceedings of the 2nd Data Management Workshop, 28.-29.11.2014, University of Cologne, Germany, Kölner Geographische Arbeiten, 96, pp. III-IV
# 4
Hoffmeister, Dirk • Gelhar, Martina • Willmes, Christian • Steffens, Ricarda • Louwen, Britta • (et. al.)
Abstract: The European Mining Database for North Rhine Westphalia (EMD-NRW) has the objective to present information about the industrial heritage of mining in a GIS-based web portal. Especially in the area of North Rhine Westphalia (Germany) larger coal reserves were important for the development of the industry and particularly influenced the landscape. Concerning the increasing abandonment of these objects and the loss of the cultural industry objects, the preservation of information and the relations between these objects is important. The EMD-NRW system is capable of representing the complex, hierarchical structure of archive data and connecting this data to their geographical location. Several technologies are used to share this information in a web portal. Therefore, comprehensive information is available about every object. All objects are spatially referenced and can be visualized in a map. It is possible to connect the system to other projects by the use of open, compliant techniques. For beginners and experts information are easy to retrieve because of an intuitive design of the graphical user interface.
Proceedings of the Data Management Workshop, 29-30 October 2009, University of Cologne, Germany, Kölner Geographische Arbeiten, 90, pp. 75-81
# 5
Bolten, Andreas • Hoffmeister, Dirk • Willmes, Christian • Bubenzer, Olaf • Bareth, Georg
Abstract: The data management concept of the CRC/TR 32 'SVA-Patterns' (Curdt et al. 2008, 2010) offers a perfect tool to store and manage the data of an interdisciplinary research project. The focus here is on data management of soil (S), vegetation (V) and atmosphere (A) data for SVA-modelling purpose for a distinct watershed, the Rur-Catchment in Western Germany. The presented paper reflects the possibility and the adapting steps to transfer the concept to another interdisciplinary project. However, the technical transfer of the framework of the database is evident but the system needs to be adapted to the requirements of the benefit project. The Collaborative Research Centre (CRC) 806 'Our Way to Europe' performs a totally different investigation question and area, to capture the major intercontinental and transcontinental events of dispersal of modern man from Africa to central Europe. Therefore, other data formats and data amount occurs and other demands on the data management system are made. The paper identifies three spheres of action to adapt the concept to the CRC 806. (i) The integration of external databases to afford both, the transfer of data to other data management systems and to provide an interface to allow requests of external databases. (ii) The visualization of 3D-data in a web mapping application. (iii) The possibility for external and internal users to use geoprocessing tools to perform analysis based on the geodata in a web mapping application.
Proceedings of the Data Management Workshop, 29-30 October 2009, University of Cologne, Germany, Kölner Geographische Arbeiten, 90, pp. 7-11
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