Chapters 1 and 2 provided a solid introduction to Web GIS and how it’s used to share and work with geographic data online. I learned how systems like ArcGIS Online make it easier for users to create interactive maps and apps. Chapter 1 explained how Web GIS has evolved and how it connects different components like data, servers, and users into one system. The tutorial showed how to create a basic web map app that displays points of interest, which helped me understand how Web GIS apps are structured.
In Chapter 2, the focus was on smart mapping and the role of feature layers. I learned how these layers let users visualize data in meaningful ways and how maps can be styled to highlight different patterns or trends. The tutorial in this chapter showed how to use population data to build a map that tells a clear visual story. One thing I’m curious about is how to decide which symbology or mapping method works best for a given dataset? Are there general rules, or is it mostly up to the user?
Geog 291 Application
To apply what I learned, I created a simple Web GIS app using population data from Delaware County. I used smart mapping to show areas with higher or lower populations. This kind of app could help explore local demographic trends or support planning decisions. It was a good way to practice using hosted layers and the map styling tools introduced in the chapters.