The IDM says it is the professional development body for marketers, individuals and companies that wish to improve their direct, data and digital marketing effectiveness.
It will reflect this in its literature, products and services and a series of new initiatives.
The IDM said that the change was necessitated by the continual blurring of the lines of distinction between marketing disciplines.
It hopes that the moves will take the IDM away from solely being associated with direct marketing and widen it to data and digital disciplines as well.
Professor Derek Holder, managing director of the IDM, said: "At the IDM we believe today's direct marketing is defined by three vital and interdependent dimensions; direct, data and digital.
"'Direct' is still about accountability that comes from managed interactions with customers and prospects, while 'data' and 'digital' are the vital currencies that direct marketing so expertly and uniquely mobilises to the organisation's -- and customers' -- unique advantage."
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