With the race to deliver financial services over the Web gathering speed, Brokat said companies can slash project times for Web services by using Twister 4 as their e-commerce engine.
Brokat users include the Co-operative's Internet bank Smile - which had a glitch-free online launch.
But analysts said that, although users may be able to speed up development projects using Twister 4, they should prepare to shell out extra cash for consulting support to implement the sophisticated package properly.
Twister 4 also offers a retail banking module and a facility for secure mobile payments, using an electronic wallet.
Paul McCarthy, UK managing director of Brokat, said, "If you have a retail banking system you have to create a Web front-end with business objects that talk to the back-office system. It may take quite a lot of time and money to build the applications, but now all these can been created using a suite of our applications."
However, analysts have warned that installing a powerful e-commerce package such as Twister will not be straightforward or cheap.
"It is all very well having a software package that you can unpack, but they are just tools and you have to tailor it to the business," said Mat Hanrahan, an analyst at Bloor Research.
Because its product touches all corners of the business including enterprise software and data warehouses, Brokat needs to step up consultancy support for users, Hanrahan added.
Brokat is also keen to move into the expanding market for mobile payment systems. It recently signed a deal with mobile Internet company T-Motion to provide mobile payments based on Twister.
T-Motion plans to extend the service to the UK and Australia and is adding billing and clearing functionality.