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Drivers for SOA Integration

All modernization projects should always begin with a clear understanding of the business drivers of a modernization initiative. It does seem a bit obvious to make this statement, yet many managers embark on technology projects for technology's sake. With respect to SOA integration, we have outlined several different types of methods, none of which is mutually exclusive or without planning, efforts, risks, or costs. So, to understand which path one needs to take, it is important to discover what the drivers are for your business.

In a recent survey by MetaGroup, CIOs were asked about the critical drivers for their modernization initiatives.

Drivers for SOA Integration

There are several key factors that are currently driving today's legacy modernization efforts. The following is an overview of just some of the driving factors that you should consider when understanding business objectives for any modernization project.

  • Agility —Enable innovation within the business

    Today, many business CEOs believe that IT is an inhibitor of innovation. A lot of dollars is spent on maintenance and infrastructure. Changes to code take a very long time and can delay a company's need to respond to changes in the market. SOA integration reduces the development cycle and enables change quickly.

  • Value —Expose and extend business value locked in the legacy system.

    Years of business expertise have been baked into legacy applications. There is much value inside, and enabling these services to be exposed and consumed outside the legacy environment can help streamline applications, help business respond quickly to competition, and also help create new business services quickly.

  • Reduced Cost

    Time to deliver upgraded applications in the legacy world is usually measured with many months and a large amount of people resources. Changes in these monolithic systems are simply very expensive to make, in terms of both time and money. There is also a high frequency of redundancy in applications. So, eliminating redundant processes and having a component-based SOA architecture reduces the overall cost of maintenance by enabling fewer people to deliver faster.

  • Dwindling Technology Resources

    There is a steady decline in experienced personnel in the IT industry today. New developers are not learning the older technologies and the subject matter experts are leaving the workforce at an increased pace. A recent Accenture study indicated that 45% of all US Federal Employees will be retired within 6 years* (need to source this). Now is the time to begin with the planning and execution of this large and ongoing transfer of demographics in the workforce.

With the legacy systems taking up a majority of IT budgets today just for maintenance, technology is becoming less of a differentiator and more of a deadweight. In 2006, Forrester surveyed CEOs, and asked if their IT departments enabled innovation, or were a stumbling block for innovation. The survey revealed that a vast majority of the surveyed CEOs said that IT was an inhibitor of innovation. This was predominately attributed to the dedication of a high percentage of IT budget to maintenance rather than to new features, and the lack of (IT's) agility. The good news is that SOA can help organizations become a source of accelerated innovation rather than hold them back. The following is a chart on how SOA can be a value accelerator for the business:

Considerations for SOA Enablement

We have covered some high-level concepts with respect to SOA and what that means for legacy integration. As with any choice, there are benefits and drawbacks to each option. In the following table, we have outlined some of the key things to consider for SOA integration. Note that the strengths and weakness listed here are defined in terms of both business and technical aspects.

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