University of Twente Student Theses


Addresses in geoinformation infrastructure

Bilshakka, Steve Fitka (2010) Addresses in geoinformation infrastructure.

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Abstract:objective of this research is to understand the origin, functions and use of addresses within the public sector and society. To understand the role of address in geo-information infrastructure and base register. To explore the current status of address datasets within the public sector in Tanzania, Place is a unique and special location embedded in space. Space is the boundless, three-dimensional extent in which objects and events occur. The real world can be described only in terms of models that delineate the concepts and procedures needed to translate real-world observations into data that are meaningful in GIS. Data from the primary sources were collected through interviews, questionnaires, and nonparticipant observations. The interviews were based on structured; unstructured and open-ended questions to enable respondents provide insights on the line of inquiry. Empirical data was collected in the Dares Salam city of Tanzania mainland, and was limited to only Dares Salam because of its geographical location and position as the capital where most of public offices are located. The research targeted the government organizations and also some private organizations that are engaged in creating and sharing address data within the city of Dar es Salam. The process of interpreting reality by using both a real-world and a data model is called data modeling. Objects in a GIS data model are described in terms of identity type, geometric elements, attributes, relations, and qualities. Data models may be designed to include physical objects, such as roads, water mains, and properties. A conceptual model can be described by using various notations, such as unified modeling language (UML) for object modeling. In this research UML modeling technique was used. In UML notation, the conceptual model is often described with a class diagram in which classes represent concepts, associations represent relationships between concepts. Public sector use addresses for various purposes which include: social service delivery, municipal service delivery, Goods delivery, census, election and emergency services. In research, addresses were classified into seven namely: place name& mental map, semantic address, postal box, spatial-address (coordinates), telephone, emails, internet protocol address (IP). The concept of base registers, such as census data, cadastres, legal entities, vehicles, addresses, topographical databases, is that they are guaranteed by the government regarding the availability, access, continuity, up-to-datedness, quality, and price to the society. The researcher visited some government agencies during the fieldwork and observed how addresses are use for official registration procedures within the public sector. The major limitation of the research is the absent of any private sector involved in the development, creation and maintenance of address datasets in Tanzania. Semantic address in the Western Europe is an outdated concept because „Address‟ by definition is means to find a person at a certain place, but basically we are looking for the person and not the place.
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
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