MBR IT/.NET 247 : Architecture: Duwamish 7 and IBuySpy on ASPFriends.com 'aspngduwamish' list

Architecture: Duwamish 7 and IBuySpy

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This message was discovered on ASPFriends.com 'aspngduwamish' list.
Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions.

Hewitt, Chris

-- Copied from [aspngarchitecture] to [aspngduwamish] by Click here to reveal e-mail address --I have recently been looking in some detail at the design of Duwamish 7,Microsoft's sample app used as an example for 'The Architecture of .NETApplications' at Tech Ed.This appears to be a simplistic port of the Duwamish 4.0 ASP/DNAapplication, without much thought about how the new capabilities of .NET(esp. ADO.NET) change the ground underneath the app.The basic pattern is "BusinessFacade" (and friends). This is a design for ascalable ASP/MTS/SQL app that can be implemented by large teams ofrelatively junior developers. It has problems - it is slow, not particularlymaintainable (it's about 6 code tiers, this impacts your ability to debugproblems) and is not really an OO design (stateless, strictly procedural -looks like a COBOL Program!).I am planning to dedicate some of my relatively sparse spare time to comingup with and publishing (on our website and in the Architecture forum) a.NET-centric alternative to BusinessFacade, in the form of a paper. 1. Does anyone know of any existing information/Architecture work in thisarea (BusinessFacade) - what is Don Box/et al looking at at the moment?(don't want to duplicate work).2. Anyone interested in setting up a group to create a 'library' of .NETpatterns (for IBuySpy for example). This could end up as a book. It takes alot of effort/critique to come up with good patterns - better to do it as acommunity. Chris HewittMonash.NET

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Ken Allen

Chris,

I am interested in helping to set up the group to create a 'library' of .net
patterns that you mention.

I have attempted to copy the design for building a suite of web based
applications, but have run into difficulties in extending the architecture
to include conspets such as web services.

Thanks,
Ken Allen

-----Original Message-----
From: Hewitt, Chris [mailto:Click here to reveal e-mail address]
Sent: Thursday, September 13, 2001 9:18 PM
To: aspngduwamish
Subject: [aspngduwamish] Architecture: Duwamish 7 and IBuySpy

-- Copied from [aspngarchitecture] to [aspngduwamish] by
Click here to reveal e-mail address --

I have recently been looking in some detail at the design of Duwamish 7,
Microsoft's sample app used as an example for 'The Architecture of .NET
Applications' at Tech Ed.

This appears to be a simplistic port of the Duwamish 4.0 ASP/DNA
application, without much thought about how the new capabilities of .NET
(esp. ADO.NET) change the ground underneath the app.

The basic pattern is "BusinessFacade" (and friends). This is a design for a
scalable ASP/MTS/SQL app that can be implemented by large teams of
relatively junior developers. It has problems - it is slow, not particularly
maintainable (it's about 6 code tiers, this impacts your ability to debug
problems) and is not really an OO design (stateless, strictly procedural -
looks like a COBOL Program!).

I am planning to dedicate some of my relatively sparse spare time to coming
up with and publishing (on our website and in the Architecture forum) a
.NET-centric alternative to BusinessFacade, in the form of a paper.

1. Does anyone know of any existing information/Architecture work in this
area (BusinessFacade) - what is Don Box/et al looking at at the moment?
(don't want to duplicate work).

2. Anyone interested in setting up a group to create a 'library' of .NET
patterns (for IBuySpy for example). This could end up as a book. It takes a
lot of effort/critique to come up with good patterns - better to do it as a
community.

Chris Hewitt
Monash.NET

| [aspngduwamish] member Click here to reveal e-mail address = YOUR ID
| http://www.asplists.com/asplists/aspngduwamish.asp = JOIN/QUIT
| http://www.asplists.com/search = SEARCH Archives

Reply to this message...

(VIP)

Keep your eye on:
http://www.aspfriends.com/aspfriends/new.asp
Next week.=20

Some new pattern centric lists are coming. I will make a special list =
for the project too.

----- Original Message -----
From: "Ken Allen" <Click here to reveal e-mail address>
To: Click here to reveal e-mail address
Sent: Sat, 15 Sep 2001 17:16:37 -0400
Subject: RE: [aspngduwamish] Architecture: Duwamish 7 and IBuySpy

Chris,

I am interested in helping to set up the group to create a 'library' of =
net
patterns that you mention.

I have attempted to copy the design for building a suite of web based
applications, but have run into difficulties in extending the =
architecture
to include conspets such as web services.

Thanks,
Ken Allen

-----Original Message-----
From: Hewitt, Chris [mailto:Click here to reveal e-mail address]
Sent: Thursday, September 13, 2001 9:18 PM
To: aspngduwamish
Subject: [aspngduwamish] Architecture: Duwamish 7 and IBuySpy

-- Copied from [aspngarchitecture] to [aspngduwamish] by
Click here to reveal e-mail address --

I have recently been looking in some detail at the design of Duwamish 7,
Microsoft's sample app used as an example for 'The Architecture of .NET
Applications' at Tech Ed.

This appears to be a simplistic port of the Duwamish 4.0 ASP/DNA
application, without much thought about how the new capabilities of .NET
(esp. ADO.NET) change the ground underneath the app.

The basic pattern is "BusinessFacade" (and friends). This is a design =
for a
scalable ASP/MTS/SQL app that can be implemented by large teams of
relatively junior developers. It has problems - it is slow, not =
particularly
maintainable (it's about 6 code tiers, this impacts your ability to =
debug
problems) and is not really an OO design (stateless, strictly procedural =
-
looks like a COBOL Program!).

I am planning to dedicate some of my relatively sparse spare time to =
coming
up with and publishing (on our website and in the Architecture forum) a
NET-centric alternative to BusinessFacade, in the form of a paper.

1. Does anyone know of any existing information/Architecture work in =
this
area (BusinessFacade) - what is Don Box/et al looking at at the moment?
(don't want to duplicate work).

2. Anyone interested in setting up a group to create a 'library' of .NET
patterns (for IBuySpy for example). This could end up as a book. It =
takes a
lot of effort/critique to come up with good patterns - better to do it =
as a
community.

Chris Hewitt
Monash.NET

| [aspngduwamish] member Click here to reveal e-mail address =3D YOUR ID
| http://www.asplists.com/asplists/aspngduwamish.asp =3D JOIN/QUIT
| http://www.asplists.com/search =3D SEARCH Archives

Reply to this message...

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