Foreword
The intense competition of the frequent flow of personnel of constant growth, software and software industry forces the complexity of software system software company improves software quality, accumulate and solidify knowledge fortune, shorten as far as possible the development cycle of software product. Then collect software answer with, the technology such as application development is level of distributed object computation, company the " of an organic whole is based on among software develops "(CBSD, emerge as the times require of Component Based Sortware Development) , this kind of technology is with software framework assemble blue print, with but answer it is with software component assemble module, support assembly type software answer with, raised software to produce efficiency and software quality greatly. The to this one technology research outside be this country wind is in ceaseless development, at the same time large software company (for example Sun, microsoft) reach software origanization construction (OMG) rolled out support among software platform of the technology. Face profound among technology and various software platform, a lot of people feel very spellbound and do not know how to start, the article introduced simply among technical development and characteristic, the key is elaborated and compared 3 big main trends among technical platform, make a reader right among the technology has a comprehensive knowledge.
1 among technical concept and development
Just as its name implies, among it is to be in a kind of software between application software and systematic software, it is independent at hardware or database manufacturer (be in its product among, implementation its interrelate) a kind of software, it is a client square the as square as the service join between, it is the semifinished product that need has 2 times developing.
Should say, among the technology is accompany a network and develop a kind of when rise object-oriented technology. All of computer science department previously is stand-alone system more, many users are visited through online terminal, without the concept of the network. After the network appears, the computation that produced Client/Server serves mode, many clients end can share a database the server is waited a moment with the server that print. As the network develop further, a lot of software need to be below environment of compose of different of agreement of platform of the network product of different manufacturer, hardware, network move, applied dimensions also develops wide area newwork from the local area network. Below this kind of circumstance, the limitation of Client/Server mode also is exposed came out, then among emerge as the times require. Among it is to be located in the current service between operating system and application software, its main effect is the different compose sex of the otherness that uses platform of screen network hardware and operating system and network agreement, make application software can move smoothly on different platform. At the same time among manage in laden balance, join and attemper the respect had very big effect, the function that makes company level applies gets promoting considerably, satisfied the requirement of pivotal business.
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