Microsoft Windows Workflow Foundation Step by Step [With CDROM]

The book is well written, concise, to the point and teaches the material very well.

I have been pretty heavy into WF for almost 2 years now and really thought I had it mastered. So when I bought a Step by Step book, I really just wanted it to help me teach the concepts. B/c workflow is a new way of thinking about programming, I'm always looking for new/better ways to teach it. What I got instead of a beginner's book teaching worfklow foundation was a big slice of humble pie. Why do I say that? B/c this book is nothing short of amazing. It's unbelievably well written. There is no stone unturned, and I mean no stone unturned whatsoever. The examples are compelling and are very real world. In fact, they show beyond any shadow of a doubt that Workflow foundation can be used all over the place - essentially anywhere you need a workflow. While that last statement may seem strange, it really isn't. THe hardest thing I've seen most people wrestle with learning WF is realizing that's it's not just applicable in some external rare/specific circumstances. You can (and should) use it anywhere you have a series of steps that must be executed together. One critic knocked the book b/c the author takes off on so many digressions code wise. How anyone could level this charge against the author is beyond me - in fact, it's borderline heresy. The digressions (if you want to call them that - I think they're better described as "Real World" uses) are what makes this book shine. One application shows a mock stock trading system that runs Monte-Carlo simulations on the stocks. It allows you to add/remove stocks and run the simulations repeatedly. This is something that most folks would never think to do with WF, yet his presentation of it is so elegant and intuitive that I challenge anyone who's honestly worked through his examples to say that it didn't change the way they thought of WF afterward. In another case, to show State Machines, he walks through a sample Soda Machine. Not only is it a clever way of implementing a State Machine, it is as perfect of an example as I think you could come up with. Although I'm hard pressed to say I had a favorite chapter, I'd have to cite Chapter 13 as a favorite just b/c, well, it really explains in depth how Microsoft uses Workflow Actvities all over the place in products like Microsoft Speech Server, SSIS or Biztalk. He doesn't talk about those per se, but if you've used them, you no doubt are familiar with the workflow designers. Each of them has its own set of custom activities. He walks throug buidling a FTP component that is reminiscent of the one that SSIS uses. If he just stopped at building the activity itself, no one could say he skimped on the lesson. But he continues, walking you through building a ActivityValidator and then building full UI support for it as a Toolbox item. When you're done, you'll see something that looks and feels almost identical to the FTP component in SSIS from start to finish. No detail is left uncovered. And at that point, every activity you've used in any one of

This is a really great book that explains in good detail the workings of WWF. The only knock on this book is that some of the examples did not work.

I've always enjoyed the step by step books, because they force me to sit down and work through the technology. I read through other books and tend to use them more as reference books. Of course the different step by step books have different authors and some are better than others. I'm happy to say that this one is great. Especially important to me since the subject matter is critical for projects that I have on the table. Mr. Scribner takes you through the fundamentals and into a detailed analysis of most of the provided activities before delving into more advanced subjects such as workflow types other than sequential. The book wraps up with using workflow on the client and server ends of web services. The steps are laid out well except for some cumbersome back referencing to previous chapters in some of the earlier chapters. At some times the author gets a little wordy and monotonous with steps (e.g. step 1 of most of the samples). He could have been straight to the point and just have said open the project such and such. The samples are where this book really shines. All of the code is available on the CD that can be installed (although I would have much preferred to copy the data from the CD). The author provides two solution directories for most of the samples in the book. The first one is a partial solution that includes all of the work not relevant to workflow or what you've already learned (e.g. you won't have to drudgingly build your service interfaces for each sample). The second one is a complete solution already done that you can reference. The samples are interesting and relevant. You can tell the author had fun with them. There are some subjects namely rules, declaritive workflows, and session state with web services that could have been expounded on, but I suppose to be fair the purpose of a step by step book is not to go into too much depth on things. That being said, there are some external references, but not enough and a summary of them at the back of the book would be nice.

It is an excellent introductory book about Workflow Foundation. In addition to step by step tutorials, the author uses real world examples to illustrate concepts. I also like the writing style. After I read the book, I realize that Windows Workflow Foundation is a powerful programming tool that will change the way how the software is constructed. Can not wait to use Workflow in the next project!