Management expert Professor Henry Mintzberg has argued that a manager’s work can be boiled down to ten common roles. According to Mintzberg, these roles, or expectations for a manager’s behavior, fall into three categories: informational (managing by information), interpersonal (managing through people), and decisional (managing through action).
A manager's ten roles are divided into 3 categories: Informational, Interpersonal, and Decisional.
Informational
1. Role: Monitor
Activity: Seek and acquire work-related information
Examples: Scan/read trade press, periodicals, reports; attend seminars and training; maintain personal contacts
2. Role: Disseminator
Activity: Communicate/ disseminate information to others within the organization
Examples: Send memos and reports; inform staffers and subordinates of decisions
3. Role: Spokesperson
Activity: Communicate/transmit information to outsiders
Examples: Pass on memos, reports and informational materials; participate in conferences/meetings and report progress
Interpersonal
1. Role: Figurehead
Activity: Perform social and legal duties, act as symbolic leader
Examples: Greet visitors, sign legal documents, attend ribbon cutting ceremonies, host receptions, etc.
2. Role: Leader
Activity: Direct and motivate subordinates, select and train employees
Examples: Includes almost all interactions with subordinates
3. Role: Liaison
Activity: Establish and maintain contacts within and outside the organization
Examples: Business correspondence, participation in meetings with representatives of other divisions or organizations.
Decisional
1. Role: Entrepreneur
Activity: Identify new ideas and initiate improvement projects
Examples: Implement innovations; Plan for the future
2. Role: Disturbance Handler
Activity: Deals with disputes or problems and takes corrective action
Examples: Settle conflicts between subordinates; Choose strategic alternatives; Overcome crisis situations
3. Role: Resource Allocator
Activity: Decide where to apply resources
Examples: Draft and approve of plans, schedules, budgets; Set priorities
4. Role: Negotiator
Activity: Participates in negotiation activities with other organizations and individuals.
Reference:
http://management.atwork-network.com/2008/04/15/mintzberg’s-10-managerial-roles/