After completing each subdivision, the technician would create a polygon around that area to mark it as complete and to acknowledge personal responsibility for that portion of the work product. This kind of technology means a lot of value for people. In our life, map is very important for people. No matter for the traffic, or disaster. When you want to travel to a place that you don’t familiar with, the GPS will be a very important tool for people. The value is much more important than anything else. The value of this GPS is more important than a car. The GIS also could warn people the disaster first. Long time ago people do not have this kind of technology, disaster is a very scary thing to people. When people have this kind of technology, they will have enough time to prevent it. This could save people’s property and life. This is the progress of people. When a thing is useful to people, the value of this thing will emerge to people. The value of this technology is very big. Technology is the product of people’s wisdom. The value of it should mean a lot for people. In this world, value is hard to identify. The first thing the thing is useful to people, second people think this is a right thing. 

http://technorati.com/magic-esris-spatial-analysis-automation-features-esriuc2014/