Development Dimensions International (DDI) is an international

human resources Human resources (HR) is the set of people who make up the workforce of an organization, business sector, industry, or economy. A narrower concept is human capital, the knowledge and skills which the individuals command. Similar terms include m ...

and leadership development consultancy. DDI works with organizations to make changes related to

leadership development Leadership development is the process which helps expand the capacity of individuals to perform in leadership roles within organizations. Leadership roles are those that facilitate execution of an organization's strategy through building alignment ...

, leadership selection, succession management, and execution and

performance A performance is an act of staging or presenting a play, concert, or other form of entertainment. It is also defined as the action or process of carrying out or accomplishing an action, task, or function. Management science In the work place ...

. The company is headquartered in Pittsburgh, Pennsylvania and has more than 1,100 employees throughout 42 offices in 26 countries. William C. Byham, Ph.D., is chairman, Tacy M. Byham, Ph.D., is CEO, and David Tessmann-Keys is president.

Company Overview

DDI was founded in 1970 by William C. Byham, Ph.D., and Douglas Bray, Ph.D. DDI introduced the assessment center approach for identifying leadership skills. Byham’s article, ''Assessment Centers for Spotting Future Managers'' (''

Harvard Business Review ''Harvard Business Review'' (''HBR'') is a general management magazine published by Harvard Business Publishing, a wholly owned subsidiary of Harvard University. ''HBR'' is published six times a year and is headquartered in Brighton, Massach ...

),'' led to inquiries about the process, and later, Byham approached Bray about a partnership. DDI later branched out into leadership development. It introduced a leadership development program based on behavior modeling: Interaction Management. DDI next created a stand-alone behavioral interviewing system, Targeted Selection, which ensures compliance with

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laws. DDI’s also works on new HR technology, methodology, and content, including mid- and senior-level development, online assessment for frontline and mid-level leaders, and best practices for succession management.

Selected publications

* ''Your First Leadership Job: How Catalyst Leaders Bring Out the Best in Others'' by Tacy M. Byham, Ph.D., and Richard S. Wellins, Ph.D. * ''Grow Your Own Leaders'' ''by William Byham, Ph.D.'' * ''Realizing the Promise of Performance Management'' by Robert W. Rogers. * ''Zapp'' ''The Lightning of Empowerment'' by William Byham, Ph.D., which has sold more than 4.5 million copies to date. * Seventh edition of DDI’s Global Leadership Forecast. Presented with

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. * "Global Selection Forecast 2012: Know More. Guess Less." Conducted in partnership with Oracle.

References

{{Authority control Consulting firms established in 1970 Companies based in Pittsburgh 1970 establishments in Pennsylvania 1970 establishments in the United States