Quick thoughts on things
IBM Impact 2008: Day 3 PDF Print E-mail
Written by Chintan Rajyaguru   
Thursday, 10 April 2008 07:13

On day 3 of Impact 2008, I focused quite a bit on networking but I did attend 2 sessions. 

Advanced Business Process Management Integration Techniques presentation focused on how to use WebSphere Business modeler to model a business process that partly runs to FileNet to manage documents and partly runs in WebSphere Process Server. The presentation used a lot of screenshots and the speaker went through the slides quickly leaving very little time to digest what was going on. My take away from the session can be summarized as follows:

  • The integration between FileNet and process server is at primitive level, which is expected given that IBM only recently bought FileNet
  • In WBM 6.1, you can export the process as XPDL format, a format recognized by FileNet
  • The integration between process server and FileNet is not true integration. In other words, they don't work as one product behind the scene. FileNet exposes its process as a web service, which the process server has to invoke
  • FileNet has its own framework to generate events, which are not CEI/CBE compliant events. However, WPS 6.1 comes with a FileNet event adapter, which can convert FileNet event into CBE event and log them in the events database for monitor to pickup
  • The most interesting part of the example was passing attachments (documents to be stored in FileNet) between WPS and FileNet. The speaker suggested that one way was to use JAX-RPC handler, which raised several questions in my mind (none of them discussed in the presentation)
    • JAX-RPC handler is part of JAX-RPC specification but from development and tooling perspective, was it always supported? In other words, did WebSphere Integration Developer provide tooling to configure and develop handlers in versions prior to 6.1? If yes, are there scenarios when it makes sense to use handlers as opposed to mediations given that handlers are lighter than mediations
    • Is there any way to make attachments (or binary data) part of the BO that flows through a process? Is it a good design decision to do so? Probably not but then what is the best way to move documents through the business process whether FileNet is used or not? I am going to find answers to all these questions

The second session was [supposed to be] about using bindings in WebSphere ESB. The abstract talked about using different messaging bindings. In other words, the session was going to be about how messaging systems can connect to SCA components running in ESB, what happens to the data, how message is represented as objects etc. but the speaker announced at the start of the presentation that he was only going to talk about MQ bindings. This limited scope provided very little value. Also, during the discussion the speaker merely showed the screenshots of WID where you would go to configure bindings and set various properties. Anyone who opens WID can see those screens. The real value would have been to discuss how to set binding properties, when to select what value for the properties, when to use default selectors and binders vs. when to create custom ones. The theme of the discussion was 'here is where you configure things' as opposed to 'here is why and how to do things.'

Before the end of the day I collected some information on IBM partner program and met some friends I used to work with 5 years ago. Fortunately I didn't eat lunch at the conference so I don't have anything to rant about the food.

 
IBM Impact 2008: Day 2 PDF Print E-mail
Written by Chintan Rajyaguru   
Wednesday, 09 April 2008 05:48

I have nothing but good things to say about my experience at Impact today. Yeah the food continues to be bad but that's beside the point. I attended 3 labs today. 

The first lab was about performance improvements in WebSphere Process Server. The lab showed how to design the application and components within the application to achieve greater performance. The take away points are:

  • Keep the BOs small because they are serialized to and deserialized from xml. Also, for a long running process they are persisted in the database. Finally, smaller BOs are easier to handle in the mediation
  • Try to reduce number of interfaces. Consider one interface with multiple methods instead of several interfaces with one method. Do you have methods with similar signature? Consider consolidating them
  • Finally, there are things you can do in the application server to improve the performance

The second lab Hacking 101, was an eye opener. It made me thinking, "may be I should stop going online." On the application design side, it discussed SQL injection, cross site scripting and more. The lab was very informative and gave the audience great pointers on how to design the application with security in mind. 

The third lab was about WAS clustering. It walked through the steps to create a vertical and horizontal cluster and manage the web server and nodes from the deployment manager. The lab was about clustering 101, which one could probably pick up from an article or a redbook but I thought it was a good focused exercise.

On day 3, I am going to attend some more technical sessions. Hopefully the lecture style sessions won't be boring.

 
IBM Impact 2008: Day 1 PDF Print E-mail
Written by Chintan Rajyaguru   
Tuesday, 08 April 2008 05:45

Today was the real first day of Impact 2008. Jim Haney - CIO of Harley Davidson kicked off the conference, which successfully conveyed the message that the conference was about customers and users. The conference started with the event "The Smart SOA Approach Is Red Hot Globally." The event was a mixture of entertainment by Drew Carey and his team and presentations by IBM and its customers. Drew and his team were hilarious. The presentations were largely dull with a few important take away:

  • Jim Haney showed a demo of a cool website they have created for users to plan their bike ride from point A to point B. The website uses web 2.0 technologies with underlying SOA infrastructure. The website was a good demonstration of the fact that SOA and web 2.0 are real and that they are here today
  • Robert LeBlanc of IBM talked about business driven SOA and announced several vertical industry SOA frameworks e.g. SOA framework for Banking industry
  • Tom Rosamilia of IBM talked about the technology supporting SOA and BPM. He announced two new products WebSphere Business Event and BPM Suite - both coming out in second quarter of this year. He stressed that there is a major focus on business events and also talked something about SOA Deployer. I am not sure whether SOA Deployer is a product 

While the opening event was interesting the very first session I attended was not. In SOA, Web 2.0, people interaction: End-user interaction with SOA session, Jon Rasiawski of IBM failed to make a connection between web 2.0 and SOA. The presentation started with usual "business is changing constantly" and "here are the challenges of CXO" stuff but failed to make a point of how web 2.0 and people interaction address those challenges. Everybody gets the value of SOA and everybody gets that it's all about customer experience, which can be greatly enhanced by web 2.0 but how are SOA and web 2.0 related? Why and how to think about them together? The session didn't discuss any of that. I did hear some good examples of how mashups can be used. I also heard of a product named Lotus Mashups, I am not sure whether it's a new product.

After the first session, I attended a lab - Business Process Management Problem Determination in WPS. A lab is a hands on session where attendees can follow written instructions in a mentored environment and learn by doing. The lab was great. It discussed how to setup a PMR with IBM in case of a problem, what information to include in the PMR and how to collect that information. The lab largely focused on turning on various logs and analyzing them. 

The last session I attended was IBM DataPower SOA Appliances: An Introduction by Christi Cain of IBM. The content was good but the presenter wasn't very effective. She didn't build the case for DataPower appliance and largely read from the slides. The appliance and ESB or message broker have overlapping functionality. I would have liked if they had covered when to use which. For most questions the answer was "It depends on what you have."

Outside the sessions the food was really boring - bunch of bad tasting salads, pastas and some meat items. It was not clear whether the entrée was vegetarian. My meat eating friends may have enjoyed the food. Tomorrow, I am attending more labs and some technical sessions.

 
IBM Impact 2008: Day 0 PDF Print E-mail
Written by Chintan Rajyaguru   
Monday, 07 April 2008 04:52

I am here in Las Vegas... not gambling (yet!) but attending IBM Impact 2008 conference. Given my focus on SOA/BPM consulting and my current project where I am helping my client come up with an approach to define 'business design' (as IBM SOA Foundation calls it) and then derive SOA from the business design, it would be a mistake not to attend. At this conference, I will be focusing heavily on BPM, SOA and integration and I plan to share my daily experiences here.

Before I talk about my observations on day 0, here is some day -1 stuff: Registering online was easy and I got early registration and GWC member discounts. The registration confirmation email didn't arrive right away; I had to call to get one. The agenda builder tool on Impact 2008 was nice. You could see all sessions grouped by day, by track, by type and by speaker. You can add the session you like to your personal agenda - with the caveat that the tool won't alert you when you double book yourself. You could email your personal agenda to yourself but the functionality never worked for me (I never received the email). I had to manually add all sessions in my outlook so they could show up in my phone.

Anyway, I arrived at the conference on Sunday afternoon around 3:00 PM. The events before 3 were dedicated to the business partners. Checking in was quick and I was impressed by all the computers sitting around where you could pull up and print information about the conference, look up conference attendees and even surf the web. MGM Grand is a big hotel and finding your way around is not that easy. I would have liked more signs or IBM associates walking around to help people. In any case, I was able to walk between buildings and find places.

When I checked in, I was also told that the lab registration system had made some mistakes and as a result it confirmed my registration for part 2 event though part 1 was full. The letter stated that the lab mentor will try to accommodate me when the lab starts, let's see what happens.

After the registration, you could take certification tests for free (well, I would rather say the testing fee is included in the conference fee). This conference allows taking 3 tests per brand, so you could take 3 Rational tests, 3 WebSphere tests, 3 SOA tests and so on. I took one SOA test and passed. I might take more in the next few days. 

At 5:30, I went to the solution center and reception. Solution Center is a place where vendors come in and showcase their SOA/BPM capabilities - many of them aligned with IBM offerings. What impressed me here was a device that vendors could use to scan your badge if you stopped by and starting talking to someone at a booth. This gave them an easy way to lookup the visitor and follow up later. At some booths I found that the vendor folks were busy talking to one another and drinking, and not paying much attention to people stopping by at their booth. At some booths, people were not as warm and welcoming. In many cases however, I found that people were eager to talk about their SOA offerings. They were excited to discuss their solution and answer any questions. I met with quite a few people (vendors and attendees) and exchanged cards.

Overall, I had a good first day at the conference. Tomorrow, I plan to check out SOA Jam and probably participate in Smart SOA challenge.

 
Remember the B in SOA? PDF Print E-mail
Written by Chintan Rajyaguru   
Wednesday, 26 September 2007 17:30

I like everything about SOA except the acronym and the way SOA is described. To make more sense, let me tell you a story I read in a piece of paper stuck on somebody's cube. The story goes something like this:

 

A person flying somewhere in a balloon gets lost. He lowers his balloon and asks a man on the ground. "Excuse me! Could you please tell me where I am?" The person on the ground responds, "You are in a balloon about 25 feet above the ground." Hearing the response, the balloon man correctly guesses, "You must be an IT person. What you said is correct but it's of no use to me." The ground man replies (also guessing correctly), "You must be a business person. You don't know what you want, you are not asking the right questions, yet you want me to solve your problem."

 

The story applies very well to SOA. While the idea behind SOA is to promote a set of architectural principles that, by design, support a better alignment between business and IT, we failed to include the B for Business in the acronym. Not only that, we do a poor job at explaining it to non-technical people. Those guys have absolutely no idea what we are talking about when we use terms like service, architecture, loose coupling, interoperability etc. They only care about satisfying the business requirements. They care about business agility. They care about return on investment. And they care about not having to write an enhancement request and spend a ton of money when all they want is to see an additional field on their screen.

 

You see, when we 'do' SOA, we knowingly or unknowingly look at it from technical perspective. Our respected architect tells us, "You should really expose this and that system as a set of services." If he knows BPM, he would probably add, "You should also analyze your business process and identify business services from them." The architecture team starts identifying the 'toolset' to do this. The team starts debating on the granularity of services and someone keeps repeating "SOA doesn't have to be implemented using web services." (What's up with that? Enough already!)

 

I say, for every potential SOA project, we go back to the basics and think about the value proposition of SOA and what it does for the business. I say, we use that value proposition to explain to the business how SOA is about deriving IT architecture from business. I say, we recognize and acknowledge (rather than defend) the IT pain points business typically has and try to show how SOA helps ease the pain.

 

While I don't see the acronym changing, I definitely see a potential to change our approach to SOA. Remember, there is a B in SOA; you just have to find it.

 
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