Saturday, November 24, 2012

IASA CITA-P Certification

In 2012 after many years working as a Enterprise/System Architect I wanted to verify my skills via certification. Many of the certification programs were vendor specific and mainly knowledge based. You read the book, do the course and then take the test. However I was looking for a certification which was based on real experience, which was not vendor specific and was recognised globally. I had taken the IPMA Project Management certification which was experience based and found that I not only verified the skills I have, but also allowed for time to reflected on my experience and how I could improve my skills. A really worthwhile certification. After some searching I found the IASA CITA-P Certification which has a similar model to IPMA and is a widely recognised certification for IT Architects.

IASA CITA-P has a three stage process:

  • Application
  • Submission of Assessment Documentation
  • Interview with a Panel

The certification required that self-assessment documentation be supplied which was estimated to take around 80 hours. In actual fact I think it took around 160 hours to write the documentation and compile my references but it was worth it. The certification required a lot of effort and was challenging but at the same time was inspiring, opened new perspectives and provided insight into myself as an Enterprise/System Architect.

Application and Acceptance

In order to be accepted for the certification I had to supply a CV, Assessment Document and attend a telephone interview with IASA to ensure that I had the right level of experience to take the certification. Once my application was accepted I received instructions regarding the Self Assessment documentation.

IASA Proficiency

The proficiency assessment consisted of following pillars which are described in detail in the ITABoK:
  • Business Technology Strategy
  • IT Environment
  • Design Skills
  • Human Dynamic
  • Quality Attributes
  • Software Architecture
This was where a lot of the effort was placed in the certification. Each of these pillars have a number of sub-sections where the candidate describes their experience and knowledge in the given skill areas, this is supported with examples of work from projects the candidate has been active in.

Candidate Experience

The second document to be submitted is the Candidate Experience document and is based on a description of experience from projects. The candidate is required to describe experience in terms of project failures and successes. This was basically a case of selecting actual projects I been involved in, detailing the experiences and what I had learned from these projects.

Interview with Panel

After submission of the documentation I was called to an interview with the panel of assessors. I was required to give a presentation for the panel regarding IT Architecture. After that there were two sessions of question and answer. This was possibly the most nerve racking part of the process as the panel directed a sustained series of questions based on the assessment throughout the interview. After the interview was complete the panel thanked me for my time and then it was just a case of waiting for the result.

Conclusion

Looking back at this certification I can say that it did require a great deal of effort. During the certification I had a chance to reflect on my experience as an architect and perhaps gain another perspective on my skills. Even after the certification process I continue to be inspired and motivated from having received the certification and from being a member of IASA.
I would highly recommend this certification program to any Enterprise/System Architects who are looking for a professional certification. It is a challenging but very rewarding experience.


Friday, November 16, 2012

Internet of Things: A New Integration Age

The Arrival of The Cloud

In the last few years we have been hearing a lot about the The Cloud. Software, Platforms and Servers all delivered nice and easy without having to bother about setting up hardware or perform complex configurations. The difference from a few years ago is that The Cloud is no longer something of the future, it is here and it is growing fast. Companies like Microsoft, Amazon, Red Hat and Oracle are ramping up their Cloud offerings. Wait a minute, wasn't this supposed to be about integration, so why is The Cloud important?

For many years integration platforms have been aimed mainly at big businesses but in the last few years we can see medium size companies joining the movement. Since the arrival of SOA, integration with services has been much easier and less expensive than in the past. This has been a real enabler for integrations platforms because there in now a cost benefit in "integration" as opposed to a "build your own" solution.
Today smaller organisations and even single developers can build services and make them available on the Internet but for small actors there is perhaps the difficulty of purchasing platforms, maintaining and hosting these services. This is where The Cloud comes in. With The Cloud growing in maturity and many of the big stakeholders offering very inexpensive hosting (in some cases free) this allows small and medium actors to publish services which with a guaranteed accessibility. In addition to this we are seeing the appearance of the "Internet of Things" (IoT). This means we can expect a huge amount of devices all connected to The Cloud  and all communicating with each other (see Internet of Things).
All of this means that integration is going to be of huge importance in the coming years.

The Rise of the Enterprise Service Bus (ESB)

Integration Platforms have been around for many years running batch integrations (ETL) and real time integrations (EAI). The difference is that in the past these platforms were pretty heavy stuff, sometimes tough to configure, difficult to deploy and manage, and time consuming to develop. With the projected volume of integration and more focus on EAI we need something which is lightweight, flexible and can deliver a high performance. Some years ago with the popularity of SOA the Enterprise Service Bus (ESB) arrived on this scene as a core component in a SOA architecture. The ESB is the component in our architecture which facilitates Integration by providing routing, mediation, transformation and protocol transparency among other things.
It has taken sometime for acceptance of the ESB but the market for ESBs is now in full swing. The Forrester Wave: Enterprise Service Bus, Q2 2011 report details that in a survey that 32% of the Enterprises surveyed were considering an ESB and 32% were already expanding or upgrading.
While ESBs have been traditionally focused on EAI some of the vendors are even packaging ETL tools with their offerings as a complete Integration package.

Choose your Weapon

The ESB market is hotting up and there is a healthy competition. Which ESB you choose will depend on your specific environment. But here are some of the contenders:


  • MuleESB (MuleSoft)
  • Oracle Service Bus (Oracle)
  • Azure Service Bus (Microsoft)
  • FuseSouce (RedHat)
  • WebSphere Enterprise Service Bus (WESB)
  • Sonic ESB (Progress Software)
  • webMethods ESB Platform (Software AG)
  • ActiveMatrix Service Bus (Tibco)
  • WSO2 ESB (WSO2)

From these products we can see some of the old familiar faces. An interesting development is the arrival of the Azure Service Bus which puts Microsoft firmly in the ESB market but raises questions about the future of BizTalk. Mule ESB is gathering a lot of momentum with a growing collection of connectors and a growing collection of customer cases too. Another interesting move is the purchase of FuseSource by Red Hat. Red Hat have had difficulties in establishing their ESB offering and the recent purchase of FuseSource should certainly strengthen their position.

Conclusion

With new technologies and maturity of The Cloud integration is an important issue on the agenda and the ability to integrate with devices, services and applications will be a critical business factor. We can expect a more competitive ESB market with affordable products for small actors all the way up to big enterprises. It certainly feels like we are entering a new age for integration.

Wednesday, November 14, 2012

Windows 8: Smart OS?

I had my first brief look at Windows 8 during the weekend. Microsofts new offering is certainly different and the idea of using the same OS on your PC, tablet and phone certainly would have it's benefits. First impressions is that Windows 8 has a split personality, trying to accomodate PC users at the same time as phone and tablet user. These devices are different in thier nature and that things don't feel as though they quite fit together yet. It is also a big change to go from a menu and windows based system to a solely Smart Phone/Tablet based system and this can mean a substantial learning curve for many users.
Other operating systems are also following the trend with Fedora 17 sporting a distinctly Smart Phone look and feel, but at the same time combining Window/Menu system.
I think that Windows 8 may benefit from the same approach. As it stands Windows 8 may be too big a step for some users. What may be needed is a compromise where Windows 8 still offers a Windows 7 like mode to allow users to bridge the gap. Possibly even a different variant of the system for server based systems where "user experience" may be less of a concern.
Windows 8 is out on the market and packaged with new PCs, the comming 6 months are going to be interesting. Is this going to be a system broadly for home users or will it be picked up by business users too? What ever happens it is a bold move by Microsoft, only time will tell if it was the right move.

Tuesday, November 13, 2012

NOSQL Databases: The Next Generation?

For decades we have been using a relational model for data storage. However since most modern application logic is modelled on an Object Oriented Model the border between the logic and data storage is a bit of a difficult fit. The use of Entity Frameworks help bridge the gap but we still need the help of a query language like SQL. In the last few years we have seen the rise of NOSQL databases which appear to be reaching another level of maturity, and with . These databases are boasting better performance, better capacity and better scalability than the traditional RDBMS. With Oracle also offering a NOSQL solution are we facing a shift in our approach to data storage?

10 Things You Should Know About NOSQL Databases