CRM typically deals with all aspects of customers i.e. complete customer life cycle, while account mapping deals with finding information and establishing contact with the customer at various level.
CRM is a cycle it deals with: marketing, lead, sales, customer service, repeat purchase, cross sale, up sale etc.
Account mapping has a definite beginning and end: it deals ith finding information about the company and various people in the company.
For e.g. if your company deal in heavy machine and target market is pharmaceutical industry account mapping will involve to find out who are decision makers, influencer etc. in this scenario you will need to know who is manufacturing head, purchase head, factory incharge, finance head, accounts head, quality head, design head and CEO and will need to establish contact base with them you will also need to know there products and manufacturing process, purchase process etc.
Corporate Business Management is a relative word it could deal with managing business of corporate or doing business with corporate i.e. internal marketing strategies or sales (corporate account management).
What is the purpose of your information search, are you a new entrant in the field of sales / marketing or a management student.
3rd October 2009 From India