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markets are created when something is provided that didnt exist before. markets explode when that capability becomes compelling - e.g., the new offering becomes dependable and usable by a large volume of people who derive significant value from it. web services does the latter. it will cause business use of the internet, both external and internal to companies, to explode.
assessing the hype
why is this the case? what significant value will organizations derive from web services? most of the answers to these question can be found by examining the current state of the integration market. the use of networks to exchange information between applications and companies is referred to as "integration." its a market, and unfortunately, its complicated. the data is in different formats, in different places, accessible through complex interfaces, and exchanged by transferring data across unsecure networks.how do web services address this issue? in technology, whenever complex problems are addressed, the ultimate solution shows itself by factoring the problem correctly and partitioning the problem into smaller units. then the total solution is realized by leveraging and using the smaller solutions. a critical factor is that "lower-level" technical issues are hidden from the problem solver at the next level up. web services has the potential to do precisely this for integration.
a classic example is the personal computer. a pc is composed of a chassis, a motherboard, and various components such as graphics cards that connect into the overall system. those parts are, in turn, composed of other, simpler, "off the shelf" components such as integrated circuit chips. what are the key components to this success? the appropriate partitioning of the problem, opaque interfaces (e.g., standard and common interfaces that hide the complexity behind them), and standardization, so that problem solvers can easily understand and leverage work done by others.
so what does this have to do with web services? lets examine the overlooked aspect of the word "service." in the example of the person... 下一页