Theory versus practice

By: JS (JS.delete@this.NOSPAM.COM), May 17, 2006 3:29 am
Room: Moderated Discussions
Howard Chu (hyc@symas.com) on 5/17/06 wrote:
---------------------------

[...]

>Abstraction layers
>are a convenient mental tool for decomposing problems into manageable chunks, but
>they should only be a conceptual design tool. They cost too much when carried *literally* into implementation land.
>
>The idea of microkernels is valuable, as a conceptual design perspective. The ability
>to isolate functionality makes it much easier for you to define it and develop it.
>But just because you define tightly-demarcated interfaces doesn't mean you should
>always implement that way.

[...]

>Ultimately what you choose for the visible API says nothing
>about how it must be implemented underneath.
>


Exactly. You saved my time to write a reply.
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