What is SOA?----------thinking about SOA and the development of human society as a result

    SOA short for service Oriented architecture is actually a set of loosely related services on a network with service (services) as the least granularity (a collection of Services)--------They can communicate with each other.     services, as their most basic unit, exempt others to focus on the implementation of services, at this level, than OO is higher------oo only to achieve methodological level of care, the service is a number of columns related to the methods and objects in tandem, composed of services.       can be such an analogy, you want to send a courier to a person in Beijing, you do not go back to send this express-----you have more important things to do, then you call The Courier company, Then they send someone to take the letters and record the information----of course you have to pay for it. The next thing you don't have to worry about, not a big accident (such as war, large-scale plague), this express will arrive on time in the case of .     , Send Express This is a service, call is the way to get service, courier company sent to the person is the service interface,-----here are two very important places, one is how to get service? The second is the interface of the service. Now that you have the interface to the service, and then you put parameters to the interface---express, money, and other relevant information. And then the whole process is not concerned about the results of direct concern---sent to express .      again, for example, to order rice. How is the meal done, and how is it sent? These are not concerned, only the return value------They sent the meal, And then pay for it. If how to send how to do all to care about, is not worth it??     above is a simple example-you may not be the same in different positions .     if you are more advanced, Your service will also be more advanced---the search for specific services does not need you to do, your secretary can be completed, then your task is easier to-----directly to the Secretary of the interface, the rest of the .     after the thought of SOA, I think that technology will move towards humanization, some ideas or developments in society will appear in the technology. From the disorder to the process, to Oo, to so, these are in the development of mankind can be reflected in the development of the,-----with the society, from the original simple collection of food, to hunt food, and then to the people of their own farming animals, in a part of people farming animals other people do other things, the division of labor more clear, the emergence of some specialized industries, these industries provide specialized services .    it is not the technology development has undergone a similar process?    It can be speculated that if the human life style changes again, must be able to bring the leap in the technical field!   so, I have a bold idea: any field, any industry, will eventually be able to abstract together, and the development of human society to achieve the same.