Grady Booch and Jim Rumbaugh began unifying Booch and OMT in 1994, and Ivar Jacobson joined in 1995 with OOSE, producing the foundations of UML.

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Location PART 2 - FOUR HIDDEN CHIMNEYS CHAPTER 8: THE SHIELD OF SCREWTAPE Diagrams, Workflows, and Training Wheels

"Grady Booch and Jim Rumbaugh began unifying Booch and OMT in 1994, and Ivar Jacobson joined in 1995 with OOSE, producing the foundations of UML."

OMG records Booch and Rumbaugh beginning their unification work in late 1994 and Jacobson joining in 1995, bringing OOSE into what became UML. + Undated live Object Management Group history page; current-year convention applied as of October 3, 2026.

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Source title Why Is UML Important?

Source authors Object Management Group

Source year 2026

Confidence high

Importance high