patterns & practices: App Arch Guide 2.0 Knowledge Base

New Post: Is this project keep updating?

VictorWoo — Mon, 15 Apr 2013 02:24:03 GMT

Is this project keep updating?
Where is the newest info?

New Post: Is this project keep updating?

VictorWoo — Mon, 15 Apr 2013 02:24:01 GMT

Is this project keep updating?
Where is the newest info?

New Post: Some questions regarding definitions and where to put use case implementation.

fahadjaved — Sat, 13 Apr 2013 20:29:06 GMT

Hi Peter,

Have you got answers to your questions? If so can you share it with me. I have pretty much similar questions in my mind.

Thanks

New Post: Some questions regarding definitions and where to put use case implementation.

atemoya — Mon, 07 Jan 2013 16:10:39 GMT

Dear App Arch Guide team,

I read most of the “Microsoft Application Architecture Guide 2^nd Edition”, with emphasis on the first 14 chapters, where my following questions refer to. At first I want to thank you (and the many other contributors) for the great guide, it already helped me very much in finding out how to structure my layers (together with the Layered Architecture Sample by Serena Yeoh). I posted my questions on stackoverflow.com some days ago (because the discussion site on codeplex seemed not to be active any more), but it was closed as “too vague” (not my opinion, of course). Since my main objective is to get a qualified answer, I wanted to ask you kindly whether you could help me; if not directly, feel free to forward this to any of your co-authors if more specialised on this topic. I expanded the list of questions now to all which popped up to me during reading of the guide. I know they are many, but I hope they are interesting feedback for you, too.

Many thanks in advance for any help and again for this great guide!

Acronyms used by me:

Application logic (AL)

Business logic (BL)

Domain logic (DL)

Business components (BCs)

business workflow components (BWCs)

business process components (BPCs)

business entities (BEs)

business logic components (BLCs)

What exactly are BPCs, how do they differ from BEs, as both implement business logic: “Chapter 10: Component Guidelines” > Business Layer Components: BWCs: “…the application can use this to perform a business process…”, “BWCs work with BPCs that instantiate and perform operations on BWCs.” BEs: “BEs, or – more generally – business objects, encapsulate the business logic…”.
This question seems to have something to do with “application state” vs. “entity (domain object) state” and how to differentiate between these two. Could you provide some examples for each of the two, since I have only a vague imagination what the differences could be?
Are BCs the general term for business workflow components (BWCs), business process components (BPCs), business entities (BEs), utility classes etc., as suggested in Chapter 12: “Designing Business Entities” (“Examples of these components include business logic components, business entities, business process or workflow components, and utility and helper components”) or are they all EXCLUDING the BWCs and BEs, as suggested by the layer diagram e.g. on page 84, where they are depicted separately? Or are there two different definitions of BCs used here, one like in chapter 12 where BWCs and BEs are included and the other like in Chapter 14, Step 5 “Design BCs to support Workflow” where they are separated from BWCs in the context of BizTalk Server like in the layer diagram?
Contradictory definitions of term BLCs: In chapter 10: “Component Guidelines” > “Business Layer Components”, BLCs are defined as encompassing BWCs (and also BPCs? Please see question 1 and clarify.) and BEs. However, in chapter 12: “Designing BCs” > “Step 1 – Identify BCs Your Application Will Use”, they are not (listed on the same level as BEs and BWCs instead). So which definition is the correct one?
Same section in chapter 10 as in question 3: “Application logic” (AL) vs. “business logic” (BL): “Business logic is defined as any application logic…” i.e. in this definition AL is the more general term. This however contradicts Randy Stafford’s definition in Fowlers book which is: "Business logic" is the general term, can be subdivided into "domain logic" (purely concerned with the problem domain) and "application logic" (“sometimes referred to as “workflow logic”, although different people have different interpretations of “workflow”.”). (see Fowler, "Patterns of Enterprise Application Architecture" > "Service Layer"). Could you be more precise what you mean with AL and tell me what is AL which is not BL (being a subset of it in your definition)?
Same section: “business logic components should not contain any behaviour or application logic that is specific to a use case or user story. BLCs can be further subdivided into the following two components (BWCs and BECs)”. So where do I implement the use cases? “It depends? J” In the article cited in question 4, Randy Stafford writes: “In the operation script approach a Service Layer is implemented as a set of thicker classes (“services”) that directly implement application logic but delegate to encapsulated domain object classes for domain logic”. I think this is the approach followed in the “Layered Architecture Sample” by Serena Yeoh, i.e. the use cases are in the service layer?
Finally: I always thought “workflow” and “use cases” were somewhat related? I did nowhere find something about how these terms relate (or do not) to each other. Could you explain that to me a) in general, b) specifically concerning MS Workflow Foundation?

Many thanks for your patience if you read this far,

Peter.

Source code checked in, #69631

Project Collection Service Accounts — Mon, 01 Oct 2012 21:13:48 GMT

Upgrade: New Version of LabDefaultTemplate.xaml. To upgrade your build definitions, please visit the following link: http://go.microsoft.com/fwlink/?LinkId=254563

Source code checked in, #69630

Project Collection Service Accounts — Mon, 01 Oct 2012 21:07:03 GMT

Checked in by server upgrade

Created Issue: The download link seems to be broken... [9446]

gabrielas — Tue, 12 Jun 2012 18:33:27 GMT

Please fix it

New Post: Updates

m4tthall — Wed, 08 Jun 2011 09:10:54 GMT

Are any further updates planned for this site?

New Comment on "Checklists"

tannerwatson — Sat, 16 Apr 2011 16:28:05 GMT

Thanks a lot guys!

New Comment on "App Pattern - Four-Tier Web Application Scenario (Table Module"

tannerwatson — Sat, 16 Apr 2011 15:27:26 GMT

SO MUCH INFORMATION!!!! Thanks a lot guys. :D

New Post: Is Web Architecture Pocket Guide a subset of App Arch Guide?

fujiy — Fri, 08 Oct 2010 11:45:31 GMT

Is Web Architecture Pocket Guide a subset of App Arch Guide?

Source code checked in, #48968

_TFSSERVICE — Thu, 22 Jul 2010 18:55:41 GMT

Checked in by server upgrade

New Comment on "App Pattern - Four-Tier Web Application Scenario (Table Module"

ondracode — Tue, 13 Jul 2010 20:10:11 GMT

The download of the source code does not work. Where I can get the source files? Thanks.

New Comment on "App Pattern - Two-Tier Rich Client Application Scenario"

awerlang — Wed, 14 Apr 2010 03:18:13 GMT

No Silverlight app can be used in a two-tier design, because they can't access no network service except HTTP and there's no System.Data namespace.

New Comment on "Video Index"

rboucher — Mon, 15 Feb 2010 23:46:58 GMT

Looks like all these are broken because MSN Soap box went away. Let us know if these are used heavily.

Updated Wiki: Video Index

mycodeplexuser — Tue, 26 Jan 2010 04:59:25 GMT

Video Index

- J.D. Meier, Alex Homer, David Hill, Jason Taylor, Prashant Bansode, Lonnie Wall, Rob Boucher Jr, Akshay Bogawat.

The "How To" videos step through performing key tasks related to Application Architecture. The "Explained" videos provide a short presentation that describe different aspects of Application Architecture. Each video is a few minutes long.

Video: Presentation Layer (length: 2:27, size: 1.44 MB)
Video: Business Layer (length: 3:11, size: 1.65 MB)
Video: Data Access Layer (length: 2:52, size: 1.65 MB)
Video: Service Layer (length: 2:50, size: 1.51 MB)

Video: Mobile Application (length: 3:49, size: 2.01 MB)
Video: Rich Internet Application (RIA) (length: 3:30, size: 1.68 MB)
Video: Web Application (length: 3:36, size: 1.89 MB)

Updated Wiki: Video Index

mycodeplexuser — Tue, 26 Jan 2010 04:58:37 GMT

Video Index

Videos

Index of Videos

Train the Trainer

Video: Train the Trainer - Application Architecture Guide 2.0 (length: 15:19, size: 8.11 MB)

Explained

Video: Explained - Designing Services (length: 5.04, 4.05 MB)
Video: Explained - What is the MVC Pattern? (length: 6:25, size: 3.7 MB)
Video: Explained - What is the MVP Pattern? (length: 6:24, size: 3.7 MB)

How Tos

Video: How To - Design Business Components (length: 5:34, size: 3.91 MB)
Video: How To - Design Business Entities (length: 5:00, size: 4.02 MB)
Video: How To - Design Business Workflow Components (length: 5:58, size: 4.08 MB)
Video: How To - Design Caching for Web Application (length: 5:27, size: 3.75 MB)
Video: How To - Design Data Access Layer (length: 5:35, 4.07 MB)
Video: How To - Design Exception Management (length: 5:16, 3.83 MB)
Video: How To - Design Presentation Layer (length: 6:13, 4.15 MB)
Video: How To - Design UI Components (length: 5:08, size: 3.90 MB)
Video: How To - Structure Your Application (length: 5:04, size: 2.39 MB)
Video: How To - Use the MVC Pattern in ASP.NET (length: 5:34, size: 3.8 MB)
Video: How To - Use the MVP Pattern in ASP.NET (length: 5:20, size: 3.9 MB)

About the Guide

Video: Introduction to Application Architecture Guide 2.0 (length: 4:01, size: 2.62 MB)
Video: Architecture Meta Frame (length: 3:22, size: 1.70 MB)
Video: Architecture Styles (length: 1:41, size: 1.01 MB)
Video: Canonical Reference Application (length: 6:06, size: 2.96 MB)
Video: Quality Attributes (length: 3:13, size: 1.74 MB)

Video: Presentation Layer (length: 2:27, size: 1.44 MB)
Video: Business Layer (length: 3:11, size: 1.65 MB)
Video: Data Access Layer (length: 2:52, size: 1.65 MB)
Video: Service Layer (length: 2:50, size: 1.51 MB)

Video: Mobile Application (length: 3:49, size: 2.01 MB)
Video: Rich Internet Application (RIA) (length: 3:30, size: 1.68 MB)
Video: Web Application (length: 3:36, size: 1.89 MB)

Updated Wiki: Home

mycodeplexuser — Tue, 26 Jan 2010 04:57:15 GMT

Welcome to the patterns & practices Application Architecture KB! The App Arch Knowledge Base includes a large amount of material that elborates on specific topics in the main PDF guide. It also includes material from the main guide that is targeted and packaged for more specifc audiences, such as the downloadable PDF Pocket Guide series. - J.D. Meier, Alex Homer, David Hill, Jason Taylor, Prashant Bansode, Lonnie Wall, Rob Boucher Jr, Akshay Bogawat.

App Arch Guide

The final release of the Application Architecture Guide is now available on MSDN.

App Arch Knowledge Base

Media

Train the Trainer

Video: Train the Trainer - Application Architecture Guide 2.0 (length: 15:19, size: 8.11 MB)

Pocket Guides

Roadmap

Abstract	Abstract
Overview Slides	App Arch Guide 2.0 Overview Slides PDF
Key Features	Key Features
Scenario Frames	Scenario Frames
Videos	Videos and Demos
Feedback	Forums

Team

Core Dev Team: J.D. Meier, Alex Homer, Jason Taylor, Prashant Bansode, Lonnie Wall, Rob Boucher Jr, Akshay Bogawat

Contributors and Reviewers

External Contributors/Reviewers - Adwait Ullal; Andy Eunson; Brian Sletten; Christian Weyer; David Guimbellot; David Ing; David Weller; Derek Greer; Eduardo Jezierski; Evan Hoff; Gajapathi Kannan; Jeremy D. Miller; John Kordyback; Keith Pleas; Kent Corley; Mark Baker; Paul Ballard; Peter Oehlert; Norman Headlam; Ryan Plant; Sam Gentile; Sidney G Pinney; Ted Neward; Udi Dahan
Microsoft Contributors / Reviewers - Ade Miller; Amit Chopra; Anna Liu; Anoop Gupta; Bob Brumfield; Brad Abrams; Brian Cawelti; Bhushan Nene; Burley Kawasaki; Carl Perry; Chris Keyser; Chris Tavares; Clint Edmonson; Dan Reagan; David Hill; Denny Dayton; Diego Dagum; Dmitri Martynov; Dmitri Ossipov; Don Smith; Dragos Manolescu; Elisa Flasko; Eric Fleck; Erwin van der Valk; Faisal Mohamood; Francis Cheung; Gary Lewis; Glenn Block; Gregory Leake; Ian Ellison-Taylor; Ilia Fortunov; J.R. Arredondo; John deVadoss; Joseph Hofstader; Koby Avital; Loke Uei Tan; Luke Nyswonger; Manish Prabhu; Meghan Perez; Mehran Nikoo; Michael Puleio; Mike Francis; Mike Walker; Mubarak Elamin; Nick Malik; Nobuyuki Akama; Ofer Ashkenazi; Pablo Castro; Pat Helland; Phil Haack; Rabi Satter; Reed Robison; Rob Tiffany; Ryno Rijnsburger; Scott Hanselman; Seema Ramchandani; Serena Yeoh; Simon Calvert; Srinath Vasireddy; Tom Hollander; Wojtek Kozaczynski
Test Team - Rohit Sharma, Praveen Rangarajan
Edit Team - Dennis Rea
Contributors and Reviewers

Feedback

Post comments on the Discussions page.

Community

Updated Wiki: Home

mycodeplexuser — Tue, 26 Jan 2010 04:56:37 GMT

App Arch Guide

The final release of the Application Architecture Guide is now available on MSDN.

App Arch Knowledge Base

Media

Train the Trainer

Video: Train the Trainer - Application Architecture Guide 2.0 (length: 15:19, size: 8.11 MB)

Pocket Guides

Roadmap

Abstract	Abstract
Overview Slides	App Arch Guide 2.0 Overview Slides PDF
Key Features	Key Features
Scenario Frames	Scenario Frames
Videos	Videos and Demos
Feedback	Forums

Team

Core Dev Team: J.D. Meier, Alex Homer, Jason Taylor, Prashant Bansode, Lonnie Wall, Rob Boucher Jr, Akshay Bogawat

Contributors and Reviewers

External Contributors/Reviewers - Adwait Ullal; Andy Eunson; Brian Sletten; Christian Weyer; David Guimbellot; David Ing; David Weller; Derek Greer; Eduardo Jezierski; Evan Hoff; Gajapathi Kannan; Jeremy D. Miller; John Kordyback; Keith Pleas; Kent Corley; Mark Baker; Paul Ballard; Peter Oehlert; Norman Headlam; Ryan Plant; Sam Gentile; Sidney G Pinney; Ted Neward; Udi Dahan
Microsoft Contributors / Reviewers - Ade Miller; Amit Chopra; Anna Liu; Anoop Gupta; Bob Brumfield; Brad Abrams; Brian Cawelti; Bhushan Nene; Burley Kawasaki; Carl Perry; Chris Keyser; Chris Tavares; Clint Edmonson; Dan Reagan; David Hill; Denny Dayton; Diego Dagum; Dmitri Martynov; Dmitri Ossipov; Don Smith; Dragos Manolescu; Elisa Flasko; Eric Fleck; Erwin van der Valk; Faisal Mohamood; Francis Cheung; Gary Lewis; Glenn Block; Gregory Leake; Ian Ellison-Taylor; Ilia Fortunov; J.R. Arredondo; John deVadoss; Joseph Hofstader; Koby Avital; Loke Uei Tan; Luke Nyswonger; Manish Prabhu; Meghan Perez; Mehran Nikoo; Michael Puleio; Mike Francis; Mike Walker; Mubarak Elamin; Nick Malik; Nobuyuki Akama; Ofer Ashkenazi; Pablo Castro; Pat Helland; Phil Haack; Rabi Satter; Reed Robison; Rob Tiffany; Ryno Rijnsburger; Scott Hanselman; Seema Ramchandani; Serena Yeoh; Simon Calvert; Srinath Vasireddy; Tom Hollander; Wojtek Kozaczynski
Test Team - Rohit Sharma, Praveen Rangarajan
Edit Team - Dennis Rea
Contributors and Reviewers

Feedback

Post comments on the Discussions page.

Community

Updated Wiki: Home

mycodeplexuser — Tue, 26 Jan 2010 04:55:08 GMT

App Arch Guide

The final release of the Application Architecture Guide is now available on MSDN.

App Arch Knowledge Base

Media

Train the Trainer

Video: Train the Trainer - Application Architecture Guide 2.0 (length: 15:19, size: 8.11 MB)

Pocket Guides

Roadmap

Abstract	Abstract
Overview Slides	App Arch Guide 2.0 Overview Slides PDF
Key Features	Key Features
Scenario Frames	Scenario Frames
Videos	Videos and Demos
Feedback	Forums

Videos

Index of Videos

Train the Trainer

Video: Train the Trainer - Application Architecture Guide 2.0 (length: 15:19, size: 8.11 MB)

About the Guide

Video: Introduction to Application Architecture Guide 2.0 (length: 4:01, size: 2.62 MB)
Video: Architecture Meta Frame (length: 3:22, size: 1.70 MB)
Video: Architecture Styles (length: 1:41, size: 1.01 MB)
Video: Canonical Reference Application (length: 6:06, size: 2.96 MB)
Video: Quality Attributes (length: 3:13, size: 1.74 MB)

Video: Presentation Layer (length: 2:27, size: 1.44 MB)
Video: Business Layer (length: 3:11, size: 1.65 MB)
Video: Data Access Layer (length: 2:52, size: 1.65 MB)
Video: Service Layer (length: 2:50, size: 1.51 MB)

Video: Mobile Application (length: 3:49, size: 2.01 MB)
Video: Rich Internet Application (RIA) (length: 3:30, size: 1.68 MB)
Video: Web Application (length: 3:36, size: 1.89 MB)

How Tos

Video: How To - Design Business Components (length: 5:34, size: 3.91 MB)
Video: How To - Design Business Entities (length: 5:00, size: 4.02 MB)
Video: How To - Design Business Workflow Components (length: 5:58, size: 4.08 MB)
Video: How To - Design Caching for Web Application (length: 5:27, size: 3.75 MB)
Video: How To - Design Data Access Layer (length: 5:35, 4.07 MB)
Video: How To - Design Exception Management (length: 5:16, 3.83 MB)
Video: How To - Design Presentation Layer (length: 6:13, 4.15 MB)
Video: How To - Design UI Components (length: 5:08, size: 3.90 MB)
Video: How To - Structure Your Application (length: 5:04, size: 2.39 MB)
Video: How To - Use the MVC Pattern in ASP.NET (length: 5:34, size: 3.8 MB)
Video: How To - Use the MVP Pattern in ASP.NET (length: 5:20, size: 3.9 MB)

Explained

Video: Explained - Designing Services (length: 5.04, 4.05 MB)
Video: Explained - What is the MVC Pattern? (length: 6:25, size: 3.7 MB)
Video: Explained - What is the MVP Pattern? (length: 6:24, size: 3.7 MB)

Slides

Index of Slides

Figures

Index of Visios

About the Project

Team Pages

These are pages our team uses during the project:

Team

Core Dev Team: J.D. Meier, Alex Homer, Jason Taylor, Prashant Bansode, Lonnie Wall, Rob Boucher Jr, Akshay Bogawat

Contributors and Reviewers

External Contributors/Reviewers - Adwait Ullal; Andy Eunson; Brian Sletten; Christian Weyer; David Guimbellot; David Ing; David Weller; Derek Greer; Eduardo Jezierski; Evan Hoff; Gajapathi Kannan; Jeremy D. Miller; John Kordyback; Keith Pleas; Kent Corley; Mark Baker; Paul Ballard; Peter Oehlert; Norman Headlam; Ryan Plant; Sam Gentile; Sidney G Pinney; Ted Neward; Udi Dahan
Microsoft Contributors / Reviewers - Ade Miller; Amit Chopra; Anna Liu; Anoop Gupta; Bob Brumfield; Brad Abrams; Brian Cawelti; Bhushan Nene; Burley Kawasaki; Carl Perry; Chris Keyser; Chris Tavares; Clint Edmonson; Dan Reagan; David Hill; Denny Dayton; Diego Dagum; Dmitri Martynov; Dmitri Ossipov; Don Smith; Dragos Manolescu; Elisa Flasko; Eric Fleck; Erwin van der Valk; Faisal Mohamood; Francis Cheung; Gary Lewis; Glenn Block; Gregory Leake; Ian Ellison-Taylor; Ilia Fortunov; J.R. Arredondo; John deVadoss; Joseph Hofstader; Koby Avital; Loke Uei Tan; Luke Nyswonger; Manish Prabhu; Meghan Perez; Mehran Nikoo; Michael Puleio; Mike Francis; Mike Walker; Mubarak Elamin; Nick Malik; Nobuyuki Akama; Ofer Ashkenazi; Pablo Castro; Pat Helland; Phil Haack; Rabi Satter; Reed Robison; Rob Tiffany; Ryno Rijnsburger; Scott Hanselman; Seema Ramchandani; Serena Yeoh; Simon Calvert; Srinath Vasireddy; Tom Hollander; Wojtek Kozaczynski
Test Team - Rohit Sharma, Praveen Rangarajan
Edit Team - Dennis Rea
Contributors and Reviewers

Feedback

Post comments on the Discussions page.