IMC and IBC- what is the difference?

PLEASE read both definitions below:

Integrated marketing communication is integration of all marketing tools, approaches, and resources within a company which maximizes impact on consumer mind and which results into maximum profit at minimum cost

SOURCE: http://en.wikipedia.org/wiki/Integrated_marketing_communications

Integrated Brand Communications (IBC) – a holistic communications strategy that integrates all communications activities – such as public relations, advertising, investor relations, interactive or internal communications – to manage the company’s most precious asset – its brand. Since Integrated Brand Communications flows from Brand Value Management, it is central to the notion of managing brands to optimize value.

SOURCE: http://www.brandchannel.com/papers_review.asp?sp_id=650

Need we say that the both are very similar terms and does that mean IBC is slightly more tactical effort than IMC?

IMC is really the umbrella to coordinate the facts for the marketing mix with strategic plans at first, then

implement the materials. This can depend on the company's goals and it's situation to promote for the 

marketplace. What are your thoughts about this between the two? Would be interested to hear your comments-

thanks again- Bob Green