on a move from proprietary software to Apache and Linux by
the London subway system.
"The Oyster contactless card system, which handles payments for travel on London's buses and Tube system, suffered from lock-in to proprietary systems, which hindered developments to the online payment systems, said Michael Robinson, a senior consultant with Deloitte, at the Open Source Forum event in London. "The hosting was on a proprietary system, centred on one application," he said. "It demanded certain hardware, and was locked into one design of infrastructure."
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