Evaluating geoportals

Thesis Type: Postgraduate

Institution Of The Thesis: Orta Doğu Teknik Üniversitesi, Faculty of Engineering, Department of Civil Engineering, Turkey

Approval Date: 2014

Student: EREN CON



The idea of sharing data is the most important element for geographic information infrastructure, data standards and quality. To achieve this; building spatial data infrastructure, sharing and the presentation of the data concepts are available throughout the world. Following the production of data, there are specific standards such as ISO TC/211, INSPIRE and OGC to define rules and procedures of data sharing. Following the production of the data within certain standards, it is important to reach the data through a "door, gate"-like state of the environment. At this point, the portal architecture and technology are essential to respond to this need. It is important that predefined data can be shared through a single interface. Moreover; this sharing environment should have certain standards in order to respond specific needs and to work more efficiently. On the other hand; recent technological developments require improvements in the existing Geoportals and addition of new features. Sustainability of the Geoportal can be achieved by providing the fundamental features, by adapting to technological developments and by consideration of responses to user expectations. In this thesis; Geoportal components are evaluated via a survey by employees in public sector, private sector and academia in Turkey. According to survey results; national and international standards, selection and visualization data on map interfaces are considered to be the most significant features. In this context, this study aims to define the importance of Geoportal components in line with technical perspectives, analysis of world examples, international approaches on spatial features and users’ evaluations.