It will merge its existing application hosting service with a Web services capability which will enable customers to integrate between their own and their business partners' software.
Catherine Hawley, BT Ignite senior vice-president for application hosting, described the Web services part of the offering as "like the glue linking applications together".
She said the main benefits were those associated with any outsourcing: the ability to utilise a small part of what may otherwise be a complex implementation of, say, SAP or Oracle software; and being able to link these to other businesses.
Neil Macehiter, senior analyst with analyst firm Ovum, said, "What BT Ignite is offering is known as a Web services network. It has been pioneered by companies such as Grand Central and Flamenco in the US and this is the first time it has been launched as a formal strategy in the UK.
"IT directors should be looking at Web service networks as something that can deliver, as long as they are confident that their requirements can be handled by an outsourcer."
In a recent report analysts at Ovum said the Web services technology would erode the discrete product packaging of the software industry and give rise to a new type of Web services provider, acting as trusted broker managing information connections between businesses.