Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Re: Are design patterns worth it?

by stephen (Priest)
on Aug 28, 2002 at 17:37 UTC ( #193518=note: print w/replies, xml ) Need Help??


in reply to Are design patterns worth it?

I don't think you have a problem-- or if you do, you also have the solution. You recognize the difference between "maintenance minefield" and "good, well-documented, loosely coupled, easy to maintain code." Once you've got that distinction, you can refactor the minefields into grassy plains as you need.

Design patterns do not define good design. They merely specify one way of getting there, and serve as examples of it. If the code is expandable, documented, and orthogonal, I don't care if it's DP-based or not.

My usual method of dealing with partially muddy designs is as follows:

  • If the code works and doesn't need to change, I don't mess with it. I write automated unit tests for it as a background task, just in case I ever do need to fix it.
  • If I need to make a change, I start by checking my unit tests to make sure they test things out well. Then I refactor bit by bit.
  • If the code doesn't work, then I'll rewrite it-- or at least the broken portions.

The only worry about bad-but-working code is the fact that bad code begets bad code. If I'm working on a project that uses a lot of globals, it's always tempting to add more globals in my new code... after all, why not? There are globals there already. It's a quick downward slide to coding cynicism.

My interactions with a Big Ball of Mud are detailed in Failure To Refactor.

stephen

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://193518]
help
Chatterbox?
[Corion]: Hi all! After 13 years or so in the same room, I've now moved to a new room (one door further) - weird :-D
[moritz]: I had an office move too, two floors up
[moritz]: so far I've managed not to get into my old office by accident, but once it was close (already stopped at the wrong floor)

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (8)
As of 2017-10-17 08:57 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My fridge is mostly full of:

















    Results (224 votes). Check out past polls.

    Notices?