Open Source's Promise

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While many banks still ponder the benefits of using open source technology for their coding needs, nascent BankSimple has gone full steam ahead.

The start-up bank, which is testing its product with select customers, uses open source platforms for the development of nearly all of its Web and mobile applications as well as the backend systems that will power the bank when it finally throws the on switch for the 100,000 people who have signed up for its branchless services.

"Our relatively small [development] team has been able to build an enormous amount of functionality in a short time," says Alex Payne, co-founder and chief technology officer for BankSimple, of Portland, Ore.

You don't need to be a bank of the future to work with open source. Just about every large bank, whether directly or through vendors, uses open source applications and platforms today, experts say. The benefits are substantial: Banks can potentially save 80% on project costs, which they can complete more quickly, because no one vendor is developing the code.

But working in an open source environment isn't a panacea either. In fact, it brings a critical set of management issues to which banks need to pay attention. Banks have to carefully examine licenses for open source code, for example. And they must pay strict attention to upgrades, patches and security. Finding knowledgeable coders can also be an issue, and because open source is based on communities, banks have to learn how to share part or all of the code they are developing. "There is a critical mass and virtuous cycle for those contributing to an open source community, and you spread the cost of development over time to a broader audience than just your company," says Mark Driver, research analyst and vice president of open source and application development for Gartner.

Open source software is code that is available to the public to use and change, free of charge under an open license. Communities typically develop the software collaboratively. And the theory goes that because so many eyes are on the code, it is more stable and more secure, as opposed to proprietary code where only the project team gets to see it.

Companies using open source must change their way of thinking about code and coding. As opposed to the typical vendor relationship, where the customer can pay the vendor to work on fixes, work in open source communities is collaborative. When there's a problem, you have to rely on the community to provide an answer. Users of open source are also expected to contribute code, or something equivalently useful, back to the community. "There is a supplier-customer relationship that people know how to deal with in the commercial world, but in the open source world, no money exchanges hands, and when someone says, 'I need this feature,' I say, 'Why are you telling me?'" Ian Skerrett, vice president of marketing for the Eclipse Foundation, of Ottawa, says. Eclipse is an open source foundation started by IBM.

There are thousands of open source projects, and about 70 platforms licensed by the Open Source Initiative, a nonprofit group overseeing standards and licenses. However, banks only use about half a dozen of those. The most popular platforms include the Linux operating system, Apache's Hadoop MapReduce, useful for analyzing big data sets; Eclipse, which is useful for Java development; Drupal, for content management systems, and JBoss, an application server platform. Well-known consumer applications like the Android operating system for smart phones are also open source.

 

OPEN SOURCE IN BANKS

"Banks and financial institutions are looking at the competitive advantages [from open source] and they are not afraid of getting their fingernails dirty with the code because there is now a very sophisticated and mature development environment," says John Igoe, executive director of cloud solutions for Dell, of Round Rock, Texas. Dell created its own open source platform, called Crowbar, which it released in 2011. Crowbar is a provisioning framework for computer networks.

Bank of America, which has been using open source development since 2005, says the open source market is mature and can save programmers time and money, freeing them from reinventing the wheel on non-critical code. "Open source communities are pushing innovations [like the cloud] and they are no longer relevant solely for delivering alternatives to commodity products," wrote Tim Golden, senior vice president and midrange platform product manager for Bank of America, in an email.

Wells Fargo & Co. started using PERL as a general purpose scripting language about 15 years ago. Today, like a lot of banks, it is turning to Apache's Hadoop for big data analysis applications, and Eclipse for Java design issues that affect online banking, among other things. "We are heavy users of open source in certain application areas...we find some of the tools are best of breed and help us get the job done better, faster, and smarter," says Mark Tiggas, senior vice president and managing systems architect at Wells Fargo.

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