Understanding Spatial Data Usability

Spatial data usability in the Polish Spatial Information System

The paper presents the core concepts of the Polish Spatial Information System, reflecting the results of investigations performed within the framework of the research project conducted at the Institute of Geodesy and Cartography. The architecture of the Polish Spatial Data Infrastructure with regard to data flow and data access is presented. Describing the System the author stresses the importa...

Understanding Big Data Quality for Maximum Information Usability

GDMS: An abstraction layer to enhance Spatial Data Infrastructures usability

The practical exploitation of SDI (Spatial Data Infrastructures) raises number of issues as far as it grows. Among them is the heterogeneity of data sources and thus the difficulty for GIS users not to depend on the data source format and of course to learn different systems. This a major flaw with respect to reuse and data sharing. The purpose of our work is to propose a new semantic layer der...

The Impact of Usability Reports and User Test Observations on Developers' Understanding of Usability Data: An Exploratory Study

A usability evaluation provides a strong and rich basis for understanding and improving the design of user interaction with a software system. Exploiting this evaluation requires feedback that significantly impacts the developers’ understanding of usability data about the interaction design of the system. This article presents results from an exploratory study of 2 ways of providing feedback fr...

Understanding Spatial Filtering for Analysis of Land Use Data Sets

This paper summarizes the literature on spatial filtering for analysis of spatial data, as proposed by Griffith (2000a). Given the scarcity of its application in transportation and its fledgling nature, preliminary case studies were conducted using continuous and discrete response data sets, for land values and land use, in comparison with results from spatial autoregressive models with distanc...