The most well-known personality tests are over 50 years old

A large part of the personality tests used today are based on foundational works from the past: the psychological typology published by Carl Gustav Jung in 1921, the behavioral works published by William Marston in 1928, or a communication model conceived in the 1970s from Transactional Analysis, Eric Berne, John Dusay or Taibi Kahler.

These tools have served their purpose. But since then, the science of personality has evolved: new classifications, new benchmarks, new ways of understanding how we truly function.

Why these tools show their limitations

It's not that they're useless: they've allowed generations of managers and coaches to open up the conversation about personality. But they share a common structural limitation: they describe fixed traits , supposed to be stable over time and in all contexts.

However, a person does not behave the same way depending on whether they are safe or under pressure, depending on the professional or personal context, or depending on their current stress level. Reducing someone to a letter or a color freezes something that, in reality, is constantly evolving.

This is where more recent advances in psychology and psychiatry come into play.

What current classifications have changed

While consumer tests remained on their original models, doctors, psychiatrists and psychologists around the world continued to develop their reference frameworks: the ICD-11 (International Classification of Diseases, World Health Organization), the DSM-5-TR (American Psychiatric Association) and the PDM-3 (Psychodynamic Diagnostic Manual).

These classifications are not personality tests — they are the frameworks that health professionals use to describe, in a rigorous and regularly updated manner, how a personality is built, adapts and, in some cases, becomes rigid to the point of becoming a source of suffering.

It is this scientific framework that PERSONA takes as its starting point — drawing inspiration from it, without replacing it.

It is important to be clear on this point: PERSONA is neither a clinical nor a diagnostic tool. It is a framework for personal and professional development based on recognized scientific principles, without implying any endorsement from the WHO, the American Psychiatric Association, or the authors of the PDM-3, and without ever confusing personality functioning with pathology. It does not, under any circumstances, replace an assessment by a healthcare professional.

Three things that this changes in concrete terms

1. You are no longer a label

No more "you're an XYZ" or "you're red." In PERSONA, each person is understood as a unique combination of six personality types , expressed as percentages across multiple levels. These aren't fixed categories: they represent operating styles—Creator, Evaluator, Influencer, Disruptor, Organizer, Connector—that coexist within each of us to varying degrees.

2. The model distinguishes what is stable from what the context activates.

This is probably the most important difference. PERSONA distinguishes:

• a Native personality , the deep, stable foundation, built early and which structures our fundamental way of perceiving the world;

• an Influential personality , which colors this base when the energy is good and the needs are met;

• An active personality , one that manifests itself daily, under the pressure of the context and stress.

No test that merely provides a single snapshot of personality can capture the gap between who we truly are and what the current situation activates within us. It is precisely in this gap that the most valuable understanding lies.

3. You don't leave with a portrait, but with a user manual.

A classic test tells you who you are. PERSONA goes further: it explains how you function , and above all, what you can do with it — in communication, in motivation, in recognizing your own stress signals, in your management style or your relationship with time.

The other tests describe who you are. PERSONA explains how you function.

That's the whole difference between a snapshot and a user manual. The former flatters or categorizes. The latter provides concrete levers for action, usable over time — in coaching, management, training, and personal development.

This article presents a personal and professional development approach inspired by recognized scientific classifications (ICD-11, DSM-5-TR, PDM-3). It is neither a clinical tool nor a medical diagnosis, and does not replace the advice of a healthcare professional.