By E.G.Nadhan, HP Enterprise Services
Not far from where The Open Group Conference was held in San Francisco this week is the Wincheste
r Mystery House, once the personal residence of Sarah Winchester, widow of the gun magnate William Wirt Winchester. It took 38 years to build this house. Extensions and modifications were primarily based on a localized requirement du jour. Today, the house has several functional abnormalities that have no practical explanation.To build a house right, you need a blueprint that details what is to be built, where, why and how based on the home owner's requirements (including cost). As the story goes, Sarah Winchester's priorities were different. However, if we don't follow this systematic approach as enterprise architects, we are likely to land up with some Winchester IT houses as well.
Or, have we already? Enterprises are always tempted to address the immediate problem at hand with surprisingly short timelines. Frequent implementations of sporadic, tactical additions evolve to a Winchester Architecture. Right or wrong, Sarah Winchester did this by choice. If enterprises of today land up with such architectures, it can only by chance and not by choice.
Choice not chance
So, here are my tips to architect by choice rather than chance:
- Establish your principles: Fundamental architectural principles must be in place that
serve as a rock solid foundation upon which architectures are based. These principles are based on generic, common-sense tenets that are refined to apply specifically to your enterprise. - Install solid governance: The appropriate level of architectural governance must be in place with the participation from the stakeholders concerned. This governance must be exercised, keeping these architectural principles in context.
- Ensure business alignment: After establishing the architectural vision, Enterprise Architecture must lead in with a clear definition of the over-arching business architecture which defines the manner in which the other architectural layers are realized. Aligning business to IT is one of the primary responsibilities of an enterprise architect.
- Plan for continuous evaluation: Enterprise Architecture is never really done. There are constant triggers (internal and external) for implementing improvements and extensions. Consumer behavior, market trends and technological evolution can trigger aftershocks within the foundational concepts that the architecture is based upon.
- Standardize: All that said, enterprises must be agile in order to react to such demands. A standardized and modularized approach is key. Standardization can be implemented in various shapes and forms. It could be the Architectural Development Method (TOGAF), the reference architecture for a Service Oriented Approach or the manner in which infrastructure services are provisioned across SOA and Cloud solutions.
If you have instances where you have seen the Winchester pattern, do let me know by commenting here or following me on Twitter @NadhanAtHP.
This blog post was originally posted on HP’s Transforming IT Blog.
This guest post comes courtesy of E.G. Nadhan of HP Enterprise Services.
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