The Strength Deployment Inventory® (SDI®)

The Strength Deployment Inventory® enables everyone to understand the reason why people do things rather than just observe and react to what is done. More than this, the SDI® identifies for individuals their personal strengths and motivations and how these relate to those of their colleagues. It demonstrates how to use these strengths effectively to improve working or personal relationships with others.


The SDI® was developed in the USA during the 1970s by Dr Elias H. Porter Phd. and it has been used extensively throughout Europe since 1982.


The SDI® provides invaluable information on what motivates a person under two conditions: when everything is going well, and when faced with conflict or opposition.


This is vital information because it means we can understand why certain people have the impact on us they do and how we may be impacting on them! Furthermore, we learn how to recognise the real issues in relationships and how to tailor our language accordingly to communicate in more flexible and effective ways.


Recognising and dealing with inter-personal conflict is a crucial element in all relationships but especially within teams. The SDI® provides insights into how to recognise the first signs of conflict in others and shows how to respond appropriately to resolve the dispute before it gets out of hand or unwittingly causes further antagonism.


The Strength Deployment Inventory® is a registered trademark of Personal Strengths Publishing®. Forty2 is an accredited training company for this product.