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The Hermann Model: an effective tool for project management and communication

Romain Eliard
Published on
24/4/2025
The Hermann model – Sales technique and HBDI

In a world where competitiveness is intensifying and where talent diversity in organizations has become a necessity, understanding the underlying dynamics that influence individuals’ thoughts, attitudes, and actions is crucial. One model that has emerged to meet this need is the Herrmann model, also known as HBDI (Herrmann Brain Dominance Instrument). Designed by Ned Herrmann, this psychometric model is used to identify and categorize individuals’ thinking preferences. When applied properly, it can play a pivotal role in optimizing both individual and collective performance within organizations.

In this article, we will delve deeply into the Herrmann model, explore its practical applications both in the sales field and in project management, and offer tips for building and orchestrating highly effective teams. Far from being a mere theoretical tool, this model proves to be a powerful method for driving work dynamics by enhancing team synergy while promoting a better understanding of cognitive differences.

In short:

  1. HBDI Model: The Herrmann model, or HBDI, is a psychometric tool designed by Ned Herrmann to identify and categorize individuals’ thinking preferences. It divides the brain into four cognitive quadrants: analytical, sequential, interpersonal, and imaginative.

  2. Practical Applications: The HBDI model is used to optimize individual and collective performance in organizations. It is particularly useful in the fields of sales and project management, where it helps tailor approaches and build well-balanced teams.

  3. Work Dynamics: The Herrmann model enhances team synergy by fostering a better understanding of cognitive differences. It allows for leveraging individual strengths and managing conflicts constructively.

  4. Personalization in Sales: In sales, the HBDI model helps salespeople tailor their pitch according to the client’s brain preferences, thereby increasing the likelihood of success.

  5. Team Management: For team management, the Herrmann model emphasizes the importance of cognitive diversity. Diverse teams are more effective and innovative, and good leadership can orchestrate these differences to achieve optimized solutions.

Understanding the HBDI Model: The Foundations of the Brain in Quadrants

A Return to Basics: Who is Ned Herrmann and What is the HBDI Model?

Ned Herrmann, former director of executive training at General Electric in the 1970s, is the originator of the HBDI model. It emerged from neuroscience research, notably the work of Roger Sperry and Paul MacLean, who demonstrated that individuals’ actions and decisions are influenced by their brain preferences.

This research revealed that the human brain is composed of different parts, each with its own mode of processing information.

Breaking Down the HBDI Model: The Four Cognitive Quadrants

The HBDI model divides the brain into four main quadrants, corresponding to distinct modes of thinking.

These quadrants are crucial for understanding how people collect, process, and interpret information.

Each corresponds to a type of personality and can be visualized as follows:

QuadrantHemisphereAnalysisThinking StylePersonality Traits
A - Left CorticalLeftRational, logical, and analyticalAnalytical thinkingFacts, figures, logic, critique, technical
B - Left LimbicLeftSequential and cautiousSequential thinkingStructured, organized, planner, practical
C - Right LimbicRightRelational and emotionalInterpersonal thinkingFeeling, kinesthetic, empathy, expressive
D - Right CorticalRightInnovative and visionaryImaginative thinkingCreative, intuitive, conceptual, holistic, global
Illustration des quatre quadrants HBDI - Herrmann
Illustration of the cognitive quadrants of the HBDI model

Thus, each quadrant represents a mode of processing information, and these modes greatly influence individuals’ attitudes and behaviors in a professional setting.

Illustrating Thinking Styles with Concrete Examples

Let’s take a moment to illustrate each quadrant with specific examples. Imagine a situation where different individuals are considering the best way to solve a problem within a technology company.

  • Quadrant A (Analytical - Left Cortical): An engineer in this category might say, “Let’s analyze the available data on this machine, conduct rigorous tests before deciding on how to fix the malfunction.” The reasoning is centered on data collection and the accuracy of fact-based solutions.
  • Quadrant B (Sequential - Left Limbic): A project manager in this category might assert, “Let’s organize a detailed plan to solve the problem in several steps, while ensuring that the procedures are followed strictly.” Here, the focus is on method, organization, and process reliability.
  • Quadrant C (Interpersonal - Right Limbic): A team member with this thinking style might say, “Let’s talk to the department heads involved to understand how they perceive this impact and how we can together find a solution that minimizes disruptions for them.” This profile emphasizes the human and relational aspect.
  • Quadrant D (Imaginative - Right Cortical): Finally, someone associated with this quadrant might suggest, “What if we came up with a very original solution that could not only solve the problem but also improve the overall efficiency of our system?” Here, the approach is oriented towards innovation, long-term vision, and creativity.

Critiques and Defenses of the Herrmann Model

Although the Herrmann model is widely used in professional environments, it has not escaped criticism.

Some researchers, such as Terence Hines, have deemed the division of the brain into quadrants as overly simplistic. They argue that the brain is far more complex and that these categorizations do not fully capture the nuances of human thought.

However, despite these criticisms, the Herrmann model remains popular in professional circles, precisely because its quadrant metaphor is simple to understand and sufficiently general to be applied in various organizational settings.

The Herrmann Model in Sales: Tailoring Your Approach to Persuade More Effectively

Why the HBDI Model is a Valuable Tool for Sales

The commercial world is an area where understanding the psychology of clients can make a huge difference in results. Salespeople must not only have an in-depth mastery of their product or service, but they must also be able to tailor their pitch according to the client's cognitive profile.

This is where the HBDI model plays a crucial role.

By knowing their clients’ brain preferences, salespeople can adjust their presentations to better connect with them.

For example, if a prospect displays characteristics of Quadrant A (analytical), an argument based on numerical facts, efficiency data, or measurable benefits will be more striking.

Conversely, for a prospect in Quadrant C (interpersonal), emphasizing the human and emotional benefits of the product can make all the difference.

Deciphering a Client's Cognitive Profile

How can one identify a client's dominant quadrant? It starts with active listening and observing cues in the client's language, attitude, and behavior.

Here are some strategies to decode your interlocutor’s profile:

  1. Questioning priority orientation: Ask questions such as “What is most important to you in this product/service?” A client from Quadrant B (sequential) might seek reliability and appreciate concrete examples of how the product works. Conversely, a client from Quadrant D (imaginative) might be more interested in the vision or future impact of the innovation.
  2. Detecting emotional versus logical aspects in their speech: If your client is more emotional and often talks about how a product might help them feel or interact with others, you are likely dealing with someone from Quadrant C. If they focus more on performance, numbers, and facts, it could be indicative of a profile leaning towards Quadrant A.
  3. Observing the environmental context: The style of decor in your prospect’s workspace can also reveal clues about their preferences. For example, a well-organized and structured office might belong to a sequential profile (Quadrant B), whereas a cluttered space decorated with personal items might indicate a more creative or interpersonal mind (Quadrants D or C).

Sales Pitch Adaptation Table According to the HBDI Profile

HBDI QuadrantClient CharacteristicsPitch Strategy
A - AnalyticalFocused on numbers, performance, factsStructure your arguments around quantifiable benefits, measurable performance, case studies, and data
B - SequentialOrganized, structured, process-orientedEmphasize reliability, safety, technical specifics, and examples of successful implementations
C - InterpersonalPeople-oriented, values social interactionsFocus on emotional and social benefits, incorporate testimonials, and demonstrate how your solution improves well-being or relationships
D - ImaginativeInnovative, creative, visionaryHighlight the originality of the product, its disruptive potential, long-term benefits, and the future opportunities it opens
Illustration of client profile mapping based on an infographic from previdev.fr

Practical Application: Use Case in a Sales Negotiation

Imagine a situation where a salesperson must present a new software solution to two clients:

  • Client 1 (Analytical Profile - Quadrant A): This client operates in the finance sector. During the product presentation, the salesperson focuses the discourse on return on investment (ROI) studies and provides precise statistics regarding the solution’s effectiveness. The presentation emphasizes the measurable improvements that the solution will bring to the company.
  • Client 2 (Interpersonal Profile - Quadrant C): This client is an HR manager of an SME. The salesperson’s approach here is completely different. Although a few numbers are mentioned, most of the time is spent explaining how the solution can improve team communication, workplace atmosphere, and the overall well-being of employees. Testimonials from clients who noted the emotional benefits of the product are included.

Thus, by adapting the approach according to the clients’ HBDI profiles, the salesperson significantly increases the chances of closing the sale.

The Herrmann Model for Team Management: How to Orchestrate Cognitive Diversity to Achieve High-Performing Teams

The Strength of Cognitive Diversity in a Team

When it comes to team management, the natural tendency is often to gather individuals with similar profiles, under the assumption that they will work more harmoniously together. However, several studies have shown that teams that include a diversity of cognitive styles are actually more effective. According to Lionel Vuillemin, director of Herrmann International, these heterogeneous teams are capable of generating more innovative and balanced solutions.

Building a Balanced Team: The Contribution of the Different HBDI Quadrants

A team’s success largely depends on the careful selection of its members. Ideally, a project team should include individuals from all four HBDI quadrants. Each profile contributes a unique and distinct perspective:

  • Profile A (Analytical): These members are crucial for breaking down a project into practical steps, ensuring deadlines are met and the technical work is rigorous.
  • Profile B (Sequential): Sequential members are the pillars of organization and planning. They ensure that each project phase is clearly defined and strictly followed.
  • Profile C (Interpersonal): These members are the “connectors” of the team. They play a fundamental role in maintaining team dynamics, ensuring harmony and effective communication among all members.
  • Profile D (Imaginative): Imaginative members bring the ability to think outside the box, innovate, and reimagine solutions that had not been considered before.

Practical Case Study: Applying the Herrmann Model to a Project Team

Lionel Vuillemin conducted a particularly enlightening case study during a conference, featuring an interactive activity that demonstrates the power of the Herrmann model.

All participants received cards with descriptors corresponding to each HBDI quadrant.

They were then invited to exchange cards to obtain those that best represented their cognitive profile.

Below is a summary of the activity and the results obtained:

1) Context

Each participant had three cards with different descriptors (e.g., analytical, emotional, etc.), each corresponding to an HBDI profile identifiable by its color code. They were then invited to exchange cards with other participants in order to gather the descriptors that most accurately represented their cognitive profile.

2) Results

At the end of the activity, a visual scan of the displayed cards clearly revealed each individual’s dominant cognitive style. It turned out that the room showcased all the different dominances, thus providing an overall view of the participants’ cognitive diversity.

Lionel Vuillemin emphasizes that this type of activity is representative of the dynamics encountered in the business world. The natural grouping of people with similar preferences could be a trap, but teams composed of members from varied HBDI quadrants are far more effective. Moreover, initial differences in styles can often be resolved through transparent communication and enlightened leadership.

Excerpts from Conference Discussions
Group A (Blue/Green): “We enjoy tackling tough problems, achieving results, executing detailed plans, and we are proud of our successes. Planning and organization are key elements.”
Group B (Red/Yellow): “We love new ideas and innovations, but financial details, administrative hassles, and repetitive tasks bore us. We like to be able to express ourselves in our work.”
Inter-group Conflict: Group A to Group B – “You are confusing, unpredictable, and very vague!”
Outcome: Although the styles differ, Lionel Vuillemin concluded that all participants were right—their priorities were simply different and complementary.

This activity illustrates the importance of forming teams balanced in cognitive styles in order to combine rigor, innovation, empathy, and organization.

Illustration of a group meeting with varied HBDI profiles

Conflict Management: Understanding Differences and Orchestrating Them

Heterogeneous teams are not exempt from conflicts – especially because individuals with different cognitive styles may have opposing ways of solving problems or planning projects.

However, when managed properly, these conflicts can become drivers of innovation and enhanced performance.

An experienced manager or leader can use the Herrmann model to understand the source of style-based conflicts and orchestrate these differences to arrive at optimized solutions.

For example, a red-yellow team joining forces with a blue-green team can find the perfect balance between innovation and rigor, between empathy and analysis.

Creative Process: Stimulating Innovation with the Herrmann Model

To foster this creative synergy within a team, it is essential to leverage individual styles at every stage of the creative process.

The creative process defined by Graham Wallas provides an excellent framework for structuring and encouraging team innovation:

Phases of the Creative Process:

  1. Preparation: Identifying the problem and clearly formulating the objectives.
  2. Incubation: Reflection and exploration of diverse ideas. Profiles in Quadrant D are particularly strong in this phase.
  3. Illumination: Identification of innovative solutions. Profiles from Quadrants D and A may be predisposed to this task.
  4. Verification: Examining and testing solutions, correcting errors. Profiles from Quadrant B are invaluable for verifying details and methodically implementing solutions.

Running through this cycle with a team diversified according to Herrmann preferences not only leads to creative solutions, but also to balanced and practical outcomes.

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How Management Can Facilitate the Orchestration of Teams

One of the most crucial aspects of the Herrmann model is integrating it at the leadership level.

Managers, by mastering this model, can learn how to leverage their team’s individual strengths while improving on their weak points.

By recognizing the varied thinking styles, they can anticipate tensions and ease them, assign tasks that align with team members’ natural talents, and nurture a richer, more effective collaborative dynamic.

Practical Tips for Managers:

  • Mapping Skills: Using human resource management tools, create a skills map that identifies the strengths and preferences of each team member, aligning them with the HBDI quadrants.
  • Balanced Meetings: In every crucial meeting, ensure representation from all four quadrants to achieve a balanced and comprehensive discussion on the topics at hand.
  • Targeted Coaching: Offer coaching sessions or training to help members develop greater cognitive flexibility – that is, their ability to navigate between different thinking styles.

HBDI as a Lever for Efficiency and Harmony in Organizations

The Herrmann model (HBDI) is more than just a psychometric instrument; it is a profound approach to understanding the nuances of human thought. It provides practical tools not only for individual interactions but also for building and organizing high-performing teams. When applied correctly, the HBDI can improve not only personal efficiency but also harmonize the collective performance of teams.

Whether in sales, where personalized techniques become a success factor, or in project management, where orchestrating cognitive diversity leads to greater innovation – the Herrmann model proves its worth. Understanding the HBDI means recognizing that every thinking style contributes its unique part in the complex and interconnected world of modern business.

In conclusion, investing time and effort to master and apply the Herrmann model might well be one of the most strategic decisions for leaders and teams looking to thrive in a changing and competitive environment.

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