Under the deal with e-commerce software supplier ATG, HSBC will use the Java-based Dynamo 5.0 platform to create personalised Web pages for about 500,000 online customers worldwide.
The deal highlights the growing pressure companies are under to offer users tailored services over the Web.
HSBC will use Dynamo to consolidate financial services from subsidiary companies and to offer advice on investment and financial planning. Customers will be able to access the service from wireless application protocol (Wap) mobile phones and interactive televisions.
The new service, due to be implemented by the end of the year, will be able to handle up to 100,000 concurrent users, according to ATG.
Dynamo software will allow Web site managers to change site details including prices and promotions within minutes. HSBC IT staff will also be able to build a profile of repeat visitors to each site and offer them different promotions for each time they visit but do not buy a service.
Analysts believe this type of e-commerce software will become a standard benchmark for business Web sites.
Neil Anderson, a senior analyst in Ovum's applications research group, said, "Banks and financial services have been reasonably early adopters as they are cash rich, which drives IT procurement."
But IT managers will have to ensure they retain proper control of constantly changing personalised Web sites, Anderson warned.