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The Eastern Desert of Egypt occupies 21% (c. 223000 km2) of the total area of Egypt. From the early beginnings of the last century, this desert attracted scientists, especially botanists, to study its flora, ecology and vegetation. This study (between Latitudes 30 00 N and 24 00 N) included an up-to-date checklist of its flora, quantitative analysis of its vegetation, patterns of species distribution, and a proposed phytogeographical map based on GIS analysis techniques of 500 geo-referenced sites as a preliminary step towards a general vegetation map. Classification of the vegetation yielded...

Geographic information systems (GIS) have become a fact of our life as they are being used by more people and organizations for more complex decision problems than ever before. The use of GIS can achieve valuable benefits for individuals, organizations and society; however, the achievement of these benefits depends on the success of GIS. While information systems (IS) success models have received much attention among researchers, there is a general scarcity of research conducted to measure the GIS success. This book presents a success model for measuring GIS success by extending and modifying...