Development Dimensions International

Development Dimensions International® (DDI) is a leadership development and assessment company. Founded in 1970 as Development Dimensions, Inc. by Douglas W. Bray, Ph.D. and William C. Byham, Ph.D., it became Development Dimensions International in 1971. DDI describes its work as combining scientific rigor with practical application to help organizations hire, develop, and promote leaders, and states that it has been fueling growth across the entire leadership pipeline for more than 55 years. Its offerings span leadership development, facilitation, assessment, and succession, and it reports partnering with clients across 93 countries.

Development Dimensions, Inc. was founded in 1970 by Douglas W. Bray, Ph.D. and William C. Byham, Ph.D. In 1970 the DDI Assessment Center Methodology was introduced to the marketplace, with its first use of assessment center in retail at J.C. Penney. In 1971 the company became Development Dimensions International and established a partnership with MSC, described as the first Japanese company to offer assessment programs in Asia. Also in 1971, Interaction Management®, described as the first leadership program based on behavior modeling, debuted, and Targeted Selection® was introduced, with Dr. William C. Byham developing the first behavior-based interviewing system with EEO compliance. In 1974 DDI developed the S.T.A.R. format to gather accurate candidate data. In 1978 DDI conducted assessment centers to staff at the US Equal Employment Opportunity Commission and launched its first office in Canada. In 1983 DDI's flagship Europe office opened, and DDI programs became available in Spanish, French, Japanese, and Portuguese. In 1986 the company reached a milestone of over 10,000 client facilitators certified worldwide. DDI states that it has been fueling growth across the entire leadership pipeline for more than 55 years and that, since 1970, it has helped organizations turn leadership into their strongest competitive advantage.

Leadership capability that accelerates performance; connecting assessment and development, grounded in decades of research, to drive behavior change that delivers results.

• Interaction Management®

  The first leadership program based on behavior modeling, which became the most widely used leadership development program in the world, with over 1 million leaders trained every year.

• Targeted Selection®

  A behavior-based interviewing system with EEO compliance developed by Dr. William C. Byham; more than 5 million hiring managers have been trained to conduct TS® interviews.

• CoLab Studio

  A solution within LeaderLab that combines AI-powered speed with DDI's leadership science, later expanded with SCORM export capability, customizable templates and push-button publishing.

1. 1Leadership Development and Assessment Company | DDIddi.com
2. 2About DDI History | Leadership Assessment & Development | DDIddi.com
3. 3About DDI | Leadership Assessment & Development | DDIddi.com
4. 4DDI Media Room | DDIddi.com