INTRODUCTION TO GEOGRAPHY INFORMATION SYSTEMS (GIS)
Q1. Main data sources for GIS The primary data sources for GIS include; first, web pages. The internet is a platform for accessing GIS data. This GIS data from the internet is in digital format. Again, it is necessary first to evaluate the quality of data found in Metadata before purchasing or downloading it as per the GIS project’s quality standard. Secondly are map sheets. The printed or hard copy maps documents are also sources of GIS data. They vary as per format, content, age, usage, media, scale and complexity but should be legible for providing direct measurements ...