C9 video in the Monadic Design Patterns for the Web series

Dear Scalarazzi,
A new C9 video in the series!
Best wishes,
--greg

---------- Forwarded message ----------
From: Charles Torre <...>
Date: Tue, Jul 26, 2011 at 1:12 PM
Subject: C9 video in the Monadic Design Patterns for the Web series
To: Meredith Gregory <lgreg.meredith@gmail.com>
Cc: Brian Beckman <...>

And we’re live!

 

http://channel9.msdn.com/Shows/Going+Deep/C9-Lectures-Greg-Meredith-Monadic-Design-Patterns-for-the-Web-4-of-n

C

 

From: Charles Torre
Sent: Tuesday, July 26, 2011 11:51 AM
To: 'Meredith Gregory'
Cc: Brian Beckman
Subject: C9 video in the Monadic Design Patterns for the Web series

 

Here it ‘tis:

 

Greg Meredith, a mathematician and computer scientist, has graciously agreed to do a C9 lecture series covering monadic design principles applied to web development. You've met Greg before in a Whiteboard jam session with Brian Beckman.

The fundamental concept here is the monad, and Greg has a novel and conceptually simplified explanation of what a monad is and why it matters. This is a very important and required first step in the series since the whole of it is about the application of monadic composition to real world web development.

In part 4, Greg primarily focuses on the idea that a monad is really an API -- it's a view onto the organization of data and control structures, not those structures themselves. In OO terms, it's an interface. To make this point concrete Greg explores one of the simplest possible data structures that supports at least two different, yet consistent interpretations of the same API. The structure used, Conway's partisan games, turned out to be tailor-made for this investigation. Not only does this data structure have the requisite container-like shape, it provided opportunities to see just what's necessary in a container to implement the monadic interface.

Running throughout the presentation is a more general comparison of reuse between an OO approach versus a more functional one. When the monadic API is "mixed into" the implementing structure we get less reuse than when the implementing structure is passed as a type parameter. Finally, doing the work put us in a unique position to see not just how to generalize Conway's construction, monadically, but the underlying pattern which allows the generalization to suggest itself.

See part 1
See part 2
See part 3

 

--
L.G. Meredith
Managing Partner
Biosimilarity LLC
7329 39th Ave SWSeattle, WA 98136

+1 206.650.3740

http://biosimilarity.blogspot.com