According to the PMBOK® Guide, organizational structures (part of the Organizational System) define how authority, roles, and responsibilities are assigned. A Functional organization is the classic structure where the hierarchy is arranged based on specialized departments or the " job being performed. "

Characteristics of a Functional Structure:

Staff are grouped by specialty, such as production, marketing, engineering, or accounting.

Each department has its own manager (Functional Manager) who has clear authority.

Project Managers in this environment typically have little to no authority and are often referred to as " Project Coordinators " or " Project Expeditors. "

The " Job Performed " Logic: Because the organization is segmented by expertise (e.g., all engineers in one silo, all HR professionals in another), work is funneled through these functional silos. Communication typically follows the hierarchy from the project manager up to the functional manager and across to other functional managers.

Analysis of Other Options:

A. Simple: This is often found in small businesses or startups where the structure is very flat. The project manager ' s authority might be high, but the organization isn ' t necessarily segmented by specialized job functions.

B. Multi-divisional: This structure consists of multiple self-contained divisions (e.g., by product line or geography). While divisions might contain functional departments, the structure itself is arranged by division rather than just by job function.

D. Project-oriented: In this structure, the organization is arranged by projects rather than functions. Most of the organization ' s resources are involved in project work, and project managers have a great deal of independence and authority.