极限编程外文翻译(编辑修改稿)

极限编程外文翻译(编辑修改稿)内容摘要：

ents were to handle the monthly payroll of some 10,000 salaried employees. The system consists of approximately 2,000 classes and 30,000 methods and was ready within a reasonable tolerance period of the planned schedule. As we talked, I asked Jeffries how success on the C3 project translated into XP use on other Chrysler IT projects. His grin told me all I needed to know. I39。 39。 ve been involved in enough rapid application development (RAD) projects for large IT organizations over the years to understand why success does not consistently translate into acceptance. There are always at least a hundred very good reasons why success at RAD, or XP, or lean development, or other 4 outofthebox approaches doesn39。 39。 t translate into wider use but more on this issue later. Practices One thing to keep in mind is that XP practices are intended for use with small, colocated teams. They therefore tend toward minimalism, at least as far as artifacts other than code and test cases are concerned. The presentation of XP39。 39。 s practices have both positive and negative aspect At one level, they sound like rules do this, don39。 39。 t do that. Beck explains that the practices are more like guidelines than rules, guidelines that are pliable depending on the situation. However, some, like the 40hour week, can e off as a little preachy. Jeffries makes the point that the practices also interact, counterbalance, and reinforce each other, such that picking and choosing which to use and which to discard can be tricky. Paper 2 Flash is a powerful web technology that achieves a high level of visual impact from the graphical point of view. Unfortunately, it is widely misused in web design. There are still many problems with Flash, especially related to usability and search engine behaviour。 we need to thoroughly understand what those problems are before we decide to use Flash for our site. As with any business decision, it all boils down to understanding what our target audience wants. If you want to make a big impression from a graphical point of view, Flash is definitely a good approach. However, concrete evidence still points to the fact that most web users utilize the web to find information, and what they regard most important is: a) quality of content b) ease of navigation, and c) speed. Users also consider the web a highly interactive medium: they are unlikely to watch a puter screen for long periods of time without giving some sort of input. Flash technology presents several problems that go against the way most people use the web. For 5 example: download and consume vast amounts of bandwidth. Not all users have a broadband connection. Flash forces users with dialup connections to spend valuable time watching the load bar, instead of getting to the information they want, fast. button does not work: instead of taking you to the previous screen, it will get you out of the Flash site. Also, the standard colors for visited and unvisited links w。