The notion of soft skills is believed to have appeared in US army documents in the 60's.
Concomitantly, several research on personality / leadership were conducted in American universities.
Some of these research have given birth to methods and practices which have been the initial assets to create leadership training / editing companies.
In most of these methods, a key element might be pointed out : it is a typology of personality / leadership styles which is conveyed through a pattern.
Below is a gamified introduction towards these patterns / methods / companies. You are welcome to answer to the question by clicking on buttons.
For Pattern (i), who is the author/owner :
- William Moulton Marston (1893 – 1947), American psychologist 
- Everything Disc, a Wiley brand 
- The Ken Blanchard Companies 
- Geier Learning International 
- The Center for Leadership Studies 
- a Vietnamese French management consultant and designer.
Pattern 1 : "Delegating, Supporting, Coaching, Directing" :
Pattern 2 : "Dominance, Influence, Steadiness, Conscientiousness"
Pattern 3 : "Delegate, Influence, Support, Command"
Pattern 4 : "Directive, Interactive, Supportive, Corrective"
Pattern 5 : "Delegating, Participating, Selling, Telling"
Pattern 6 : "Dominance, Inducement, Submission, Compliance"
 Management stratégique du copyright : le cas "Leadership situationnel", X-Propriété-Intellectuelle (post in French)
 A genuine interpretation of DISC : DISC Governance, Gouvernance numérique de l'entreprise créative
About the technology of this post
 The technology use for the gamification of the post is an HTML5 piece of code released in 2014 under open source by Tru Do-Khac (X 79, author and producer of this gamified post).
The code was added to Blogger of Google to build the Personal MOOC, a Minimum Viable Product (MVP) to edit and produce on line training modules. In January 2015, the Personal MOOC was elected Trophée IT Innovation Forum by the members of a community of 3000 + French IT Managers (CRIP) [a].
[a] 5ème IT innovation Forum : le digital à l’honneur, Tristan Karache, iTpro.fr, 30 janvier 2015 (post in French)