Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Re^5: Nobody Expects the Agile Imposition (Part VI): Architecture

by BrowserUk (Pope)
on Jan 27, 2011 at 17:43 UTC ( #884621=note: print w/ replies, xml ) Need Help??


in reply to Re^4: Nobody Expects the Agile Imposition (Part VI): Architecture
in thread Nobody Expects the Agile Imposition (Part VI): Architecture

Actually, I think re-write in the Joel sense means even more than that.

It generally means starting from scratch to achieve the same overall functionality, and usually, the same external interfaces. But with the express intention of improving the internal structuring and architecture, with the laudable goals of improving readability/maintainability/extensibility. This is often approached top down.

Joel's point is that approaching these latter goals this way often goes ary, because in the process, many mistakes made and long since corrected in the original design and implementation, are made again.

The refactoring process tends to be a bottom up, more constrained process, that improves r/m/x-abilities of individual functions or classes by cleaning up their implementations whilst retaining the fixes and extensions previously applied that lead to the need to refactor in the first place.

Often, this type of refactoring needs to be applied as a multi-pass, step-wise refinement process to achieve best effect, but the advantage is that--done properly--you avoid large scale changes in any one step that are likely to cause extensive breakage.

The difference between the two approaches is--or at least, certainly should be--far more than politically expedient terminology.


Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.


Comment on Re^5: Nobody Expects the Agile Imposition (Part VI): Architecture

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://884621]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chanting in the Monastery: (10)
As of 2014-09-19 09:47 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (134 votes), past polls