When a business has several products or different branches the style will need to be distinct or abstract, this type becomes known with use and exposure as identified with a certain company or group. There is also a mix of the two areas but what ever the end result it will be determined by the steps in the design process.
The most important elemet in Corporate Identity control is ths production of a Corporate Manual Guide which will cover all aspects logo usage. This results in every element of corporate identity being consistent showing the logo in all areas of print, signs, flags, vehicles and other promotional material. Like Brand Management it is better handled by one Graphic Designer, who should ensure that the Corporate Identity is not distorted, adjusted and that the colours are standardised.