https://www.economist.com/business/2018/11/01/big-blues-takeover-of-red-hat-could-produce-an-uber-cloud

IBM, for its part, has been struggling in recent years to transform itself from a firm which made most of its money from IT services, software and mainframe computers to one that is based on cloud computing and artificial intelligence (AI).

And XEL may help IBM to achieve its aim