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It didn't occur to me until I read your post Mike... but what is
quickly becoming my favorite multi-purpose development language all
started with a paper headed by Erik Meijer, et Al. entitled
"Programming with Circles, Triangles and Rectangles"
At various stages and in various pieces the language concepts
presented in this paper have been known as X#, Xen, and Polyphonic C#.
These have since been absorbed into what seems to be the next
generation, at least from MS's perspective, in the C-based family of
programming languages: COmega > http://research.microsoft.com/comega/
On 6/5/05, Michael Champion <firstname.lastname@example.org> wrote:
> On 6/4/05, Michael Kay <email@example.com> wrote:
> > What on earth is the "shape" of an object instance?
> Perhaps this is the the same sense of "shape" --
> 'Software has shape.
> A program or other coherent collection of software (e.g. a framework
> or a class library) is an object (lower case) that exists in a
> multi-dimensional space. We can view that object through any of many
> Through one window, we see the shape of the inheritance hierarchy.
> Through another window, we see the object-ownership diagram. Through
> another window we see the time-series behavior of the system ... the
> sequence of object creations, deletions.
> Through another we see the execution profile of the program running,
> with big piles of execution on top of some statements, and very tiny
> piles on others.
> "Good" software has a "pleasing" shape.
> If software has a "good" inheritance hierarchy, the shape of the
> hierarchy will be pleasing ... not too broadly branched, not too tall,
> fairly well-balanced.
> If software is implemented efficiently, its execution profile will be
> relatively flat, with no big peaks indicating hot spots.'
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M. David Peterson