5.2 Communications Management
Key Takeaways
- The communication channels formula is n(n-1)/2 where n is the number of stakeholders — adding one person significantly increases complexity
- Communication methods include interactive (two-way), push (one-way to specific recipients), and pull (recipients access information on demand)
- The communications management plan defines who needs what information, when they need it, and how it will be delivered
- Effective communication considers the 5Cs: correct grammar, concise expression, clear purpose, coherent flow, and controlling information flow
- Noise is anything that interferes with the transmission or understanding of a message
Last updated: March 2026
Communications Management
Project managers spend approximately 90% of their time communicating. Effective communications management ensures the right people get the right information at the right time in the right format.
Communications Management Processes
| Process | Process Group | Purpose |
|---|---|---|
| Plan Communications Management | Planning | Determine stakeholder information needs |
| Manage Communications | Executing | Create, distribute, and store project information |
| Monitor Communications | Monitoring & Controlling | Ensure information needs of stakeholders are met |
Communication Channels Formula
The number of potential communication channels in a project is:
Channels = n(n-1) / 2
Where n = number of people (stakeholders) involved.
| People (n) | Channels | Impact |
|---|---|---|
| 5 | 10 | Manageable |
| 10 | 45 | Complex |
| 15 | 105 | Very complex |
| 20 | 190 | Extremely complex |
| 50 | 1,225 | Unmanageable without structure |
Exam Tip: If a team of 8 adds 2 more members, channels increase from 8(7)/2 = 28 to 10(9)/2 = 45. That is a 60% increase in communication complexity from adding just 2 people!
Communication Model
The basic communication model includes:
| Component | Description |
|---|---|
| Sender | The person or entity originating the message |
| Encoder | The method used to convert thoughts into a transmittable message |
| Message | The information being communicated |
| Medium | The channel used to transmit the message (email, phone, face-to-face) |
| Decoder | The method used to convert the message back into thoughts |
| Receiver | The person or entity receiving the message |
| Noise | Anything that interferes with transmission or understanding |
| Feedback | The receiver's response confirming understanding |
Communication Barriers (Noise)
- Language differences
- Cultural differences
- Distance and time zones
- Technical jargon
- Emotional states
- Distractions and interruptions
- Information overload
Communication Methods
| Method | Description | Examples |
|---|---|---|
| Interactive | Two-way, real-time exchange | Meetings, phone calls, video conferences |
| Push | One-way, sent to specific recipients | Emails, memos, reports, letters |
| Pull | Information placed where recipients can access it | Intranet, knowledge repositories, bulletin boards |
Choosing the Right Method
- Interactive: Best for complex topics, sensitive issues, and when feedback is needed immediately
- Push: Best for routine updates, formal communications, and documented records
- Pull: Best for large audiences, reference materials, and information that recipients may need at different times
Communication Types
| Dimension | Types |
|---|---|
| Direction | Upward (to management), Downward (to team), Lateral (to peers), External (to outside stakeholders) |
| Format | Formal written, Formal verbal, Informal written, Informal verbal |
| Formality | Formal (reports, presentations) vs. Informal (conversations, emails) |
When to Use Each Format
| Format | When to Use | Example |
|---|---|---|
| Formal Written | Complex issues, legal matters, project records | Project charter, contracts, reports |
| Formal Verbal | Presentations, briefings, structured meetings | Status reviews, stakeholder presentations |
| Informal Written | Quick updates, team coordination | Emails, instant messages, notes |
| Informal Verbal | Relationship building, quick clarifications | Hallway conversations, phone calls |
The 5Cs of Written Communication
- Correct grammar and writing
- Concise expression and elimination of excess words
- Clear purpose and expression
- Coherent logical flow of ideas
- Controlling flow of words and ideas
Test Your Knowledge
A project team has 12 members. How many communication channels exist?
A
B
C
D
Test Your Knowledge
A project team of 6 adds 4 new members. How many MORE communication channels are created?
A
B
C
D
Test Your Knowledge
Which communication method is MOST appropriate for discussing a sensitive project issue with a stakeholder?
A
B
C
D