Teachers Mutual Bank - one of the larger mutuals, with A$6 billion in assets and almost 200,000 members - has locked away another stage of its five-year strategy to take on Australia's Big Four banks."The plan started about five years ago, with a first step being to get our data right," David Chapman, chief information officer at Teachers Mutual Bank, said. The latest update from TMB is that is has taken on Dell Boomi, connecting multiple capabilities and systems, allowing the mutual bank to quickly and easily capitalise on new technologies, including innovations in fintech as an unplanned bonus.The cost of the project to date has been in the "multi million dollars" - with between $5 million and $6 million spent so far, according to Chapman. The TMB budget for the next three years is estimated by CIO Chapman at $850,000 for a $3.5 million payback on that investment."This is a pittance, compared to the Big Four, but they've got much larger problems to solve," Chapman said. "Their data is everywhere, it's not clean and it's in systems that don't talk to each other."On the cards is straight through processing - a fully automated process, feeding into an omni-channel platform for products such as housing loans.For this, TMB will no doubt need to collaborate with a fintech or two, something Chapman said his new system does easily.One example is Spriggy, a prepaid Visa card for children, controlled through a mobile app. Another is e- wise, which is essentially a budgeting app that seems to solve many of the security issues that have plagued other similar platforms."We have all the foundation pieces to bring together and Dell Boomi provides the connection layer," said Chapman. Boomi is an enterprise service bus, to give it its technical term, but Chapman prefers the term "orchestrator", as the software links all the pieces of software and all the processes, moving data from one piece to another, with all the data being shown in the right place at the right time.In plain speak, it allows data to be moved around to where it needs to be.Chapman said Teachers Mutual Bank is "further along than most" in stepping to omni-channel. "We are only maybe a year away from achieving that," he said. "We've got a handle on what that will look like and how will do it now."