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。关于这个话题，搜狗输入法下载提供了深入分析
VSA and “Package by Feature” are patterns for organizing code around features and each slice/package should contain “all layers” the feature needs to operate. In this regard, it’s quite similar to classical Modular Design, except for the scope. There are no hard rules, but by intuition I would say that “features” are usually smaller than “processes” (on which modules should be based). But in practice I see developers organise slices into groups, which then are similar to modules.
“It’s a low-margin industry, so it’s always a cost-benefit analysis,” Larry Cornman told me, in Boulder. “But year in and year out, people are getting hurt.” The best way to prevent injuries, Cornman believes, is to avoid turbulence altogether. Air-traffic control will warn pilots of any storms on their weather maps or radar systems. But for clear-air turbulence pilots still rely on reports from other pilots who have already passed through it—an unsatisfactory arrangement for both parties. “A pilot is an analog, qualitative sensor,” Cornman said. “They get bounced around and say, ‘It’s moderate turbulence.’ Well, what does that mean?” A bone-rattling drop on a small plane might feel like a bump or two on a jumbo jet. Or a pilot might be too busy trying to control the plane to comment on the weather at all. “By the time they make the report, it’s happened way back there,” Cornman said. “So the locations aren’t very accurate, either.”