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Enterprises should abandon their traditional "stack" view of IT architecture if they want to free up time and resources to use IT to drive innovation, according to IT analyst group Ovum.
Managing the complexity of the IT stack not only consumes most of the IT effort and budgets of enterprises, it is a barrier against using technology in new ways to benefit the business, said senior Ovum analyst Chandranshu Singh.
The traditional technology stack system of IT architecture relies on software components stacking vertically, each one communicating with the component above or below it.
But as consumer and mobile technology increasingly find their way into the workplace, businesses need software that can cut across these artificial layers, according to Singh.
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"Over the past couple of decades, we have seen the rate of change in business and technology accelerate. And for the past two years we have been saying the rate of change is too high for traditional IT processes to cope with," he said.
IT departments should limit technology stacks to the minimum they need to support key business processes, said Singh. In the longer term, they should invest in more intelligent software applications that are less reliant on a technology stack.
Many enterprises seek "quick fixes" to simplify their IT infrastructure - for example, by buying appliances with pre-integrated software stacks - but they simply hide complexity rather than reduce it, said Singh.
Another approach is to outsource requirements to a cloud service provider.
"These are very common, everyday approaches, but they still do not address the key concern, that most organisations do not have an integration framework for their IT projects," said Singh.
His advice to IT departments is to develop formal integration strategies that will help them limit the complexity of their IT infrastructure.
Different types of organisation will need to develop different types of strategy he said (see box below). "As we see the nature of business itself change, with new usage patterns and requirements coming into the picture, the IT stack needs to change," said Singh.
|How to reduce your dependency on the stack|
Reduce the impact of additional IT on your existing stack by focusing on cloud and hosted solutions.
Reduce your dependency on individual service providers to ensure you are not locked in, but maintain a balance between having too many suppliers and too few. Aim for flexible, portable infrastructure to allow you to change suppliers if necessary.
Innovative organisations dependent on internal IT
Select suppliers carefully to avoid lock-in, but try to simplify your IT operations by keeping the number of suppliers you deal with to a minimum. Examine all infrastructure projects to assess their impact on your existing infrastructure.
Organisations with best-of-breed IT
Create strong governance policies to help you design architecture without strong dependencies between products. You should work towards reducing the number of suppliers you work with as far as possible.
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