Objectory Systems
IndustrySoftware Engineering
Founded1987; 39 years ago (1987)
FounderIvar Jacobson
Defunct1991 (1991)
FateAcquired by Rational Software Corporation
Headquarters
Products

Objectory Systems was a software company based in Sweden that was instrumental in the development of Object-oriented program design. Founded in 1987 by Ivar Jacobson, the company developed Objectory, an object-oriented development method which was an extension of what is known as the Ericsson Approach, a modeling language developed at Ericsson. This language featured state charts with activity diagrams, as well as sequence diagrams.

In 1991, Ericsson purchased a substantial amount of the stake in Objectory Systems. As a result, Objectory Systems became known as Objectory AB — a subsidiary of Ericsson. In 1995, Rational Software Corporation acquired the subsidiary.

See also

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Ivar Jacobson

company was acquired by Ericsson in 1991, and the company was renamed Objectory AB. Jacobson developed the software method Object-Oriented Software Engineering

Mike Devlin (entrepreneur)

Rational, Devlin oversaw the acquisition of several companies, including Objectory AB (1995), and Catapulse (2001), a start-up which was funded by Rational

Rational unified process

(referred to by Rational field staff as the Rational Approach) with Objectory's guidance on practices such as use cases, and incorporated extensive content

Whitewater Interactive System Development with Object Models

for objectory projects. Objective Systems SF AB, 1–9. http://si.lopesgazzani.com.br/docentes/marcio/gcm/p_Karner_ResourceEstimationForObjectoryProjects