Web2.0 and GIS

Professional is a GIS, attention web2.0 is this half a month of things.

It's hard to know what web2.0 is. Recently on the Internet often see this example, Google on a search, only gradually understand. In my understanding, web2.0 refers to a series of new technologies and applications that are now emerging. Blog,wiki,rss,kijiji and the like, XML-based applications form an example of web2.0 in reality. Of course, the most essential feature of web2.0 is to make the network more than just a broadcast network, but also to give the node each terminal (audience) to the vitality, so that users can determine to a certain extent the content of the network. Make the Internet more dynamic, make the Internet more active, have more different voices.

GIS, geographic information system. As a cross-discipline of software, computer, geoscience and so on, the previous impression seems to always be in the application of various industries, such as forestry, Water conservancy, electricity and so on. As a public service point of view, the effect is very limited (at present only refers to the road, check the bus, check the location of the agency, etc.). But know that more than 70% of the information we touch is location-space information. Map services, in theory, should give users greater convenience, more services. But why is this not happening? Because we lack data sources, many locations in the city Information service cannot be collected, and even if collected, the data may have lost its usefulness. For example, if we want to do a search, search for the last week, in a space within the scope of which units to recruit, recruitment positions, features. Or, to find out which fast-food restaurants are around the company, what are the new flavors and prices? Such searches have a characteristic that the validity of such data is often very short, even if it contains spatial information, but when professionals collect the information and display it on the map, many units may have been removed, the fast-food restaurant may have moved the place or changed dishes. What search people search for may be a series of useless information.

To do this kind of search, the road you have to go is to have every need to update such data on your map. To determine the update of your data. On a technical level, it's just a different kind of (short message) for each map layer, allowing users to point out where their storefront is on the map when the ad is posted, and then add some descriptive information about the text. In this way, when the data source on your map becomes the whole society, it becomes a city. Your map will be able to update and add a large amount of realistic data over the network (the data published through the network can be displayed in the first time), and the service function of your map is becoming more and more powerful because of the increase of the data.

At the same time, when a user subscribes to a search, for example, a user concerned about the store's rental, he made such a search, he can subscribe to the RSS service, so when the store rental information updates, we can use RSS technology to timely feedback to the user (desktop browser, mobile devices can support RSS), So our space information service is in place slowly.

GIS applications are diverse, WEB2.0 technology is driven by the grassroots, so the use of this technology in this way to provide services to the grassroots seems to be a very good idea.

Kan here, and then Kan.