Better Faster Lighter Java [Electronic resources] نسخه متنی

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Justin Gehtland; Bruce A. Tate

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11.2 Process

After about a decade of stringent,

processes culminating in the rational unified process (RUP), the
pendulum is finally swinging back in a more sane direction. While
many larger IT shops are slow to adopt them, some of the ideas first
collected in the Extreme Programming (XP) method are finally making
it into the mainstream. Over the next couple of years, those ideas
will gain momentum. I'm seeing customers who were
hell-bent against agile development strongly consider it. It takes a
long of time to turn a battleship, but it's
happening. Continuous integration, automated unit testing, and
simplicity are all getting more and more attention. Soon,
you'll see full-blown test-driven development creep
into conservative programming organizations. The ideas are powerful
and sound.

The next important step is the reduction of tools. Right now, many
developers spend too much time supporting formal documentation rather
than concentrating on readable code. Formalized, full-blown UML-style
modeling will not help a project as much as simpler temporary
diagrams on a whiteboard. The role of a diagram is to improve
understanding; if you are only producing it because you have to, and
not because it adds value to the design, then don't
bother. I also think model-driven architecture (MDA) is moving in the
wrong direction. Generated code on such a scale is rarely legible,
and visual languages have consequences on performance, reuse, and
readability that we're only now coming to
understand. You're better off writing simple,
concise code from scratch that's easy to understand
and maintain.

As that battleship comes around, some vendors will resist the simpler
process. IBM's recent purchase of Rational gives
more financial backing to the vendor supporting one of the heavier
development processes, and they're starting to muddy
the waters by labeling some of their own tools with the Agile label.
Hopefully, independent consultants and academics will champion the
lightweight development processes that are far more appropriate for
most of the applications built today.

Even if you're not ready to adopt a whole new
development process, take advantage of some of the principles.
Automate your tests, value simplicity, and integrate continuously.

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