Atria Software

Atria Software Inc. was an American software company formed on January 11, 1990, by David B. Leblang, Paul Levine, David Jabs, and other former developers associated with Apollo Computer's DSEE software-engineering environment. The company emerged after Hewlett-Packard acquired Apollo Computer in 1989 and some members of the DSEE development group departed to establish an independent business. Atria's principal contribution was ClearCase, a software configuration-management and version-control product developed in the early 1990s. ClearCase was intended for professional software-development organizations that needed to manage source code, build artifacts, revisions, and parallel development across larger engineering teams. Its association with enterprise software configuration management became the defining feature of Atria's identity and later corporate legacy. Atria subsequently merged with Pure Software, creating Pure Atria. The combined company was later merged with Rational Software. IBM acquired Rational Software in 2003 and continued developing and marketing ClearCase. As a result, Atria Software no longer operates as an independent company, but its principal product continued under successor ownership and remained part of the history of enterprise software-development tools.

Atria Software was founded in the United States on January 11, 1990, by David B. Leblang, Paul Levine, David Jabs, and other software developers. Several of its founders and early developers had previously worked on DSEE, the Domain Software Engineering Environment associated with Apollo Computer. DSEE was an earlier software-engineering system used to support the management and development of software projects. Hewlett-Packard acquired Apollo Computer in 1989. After that transaction, members of the DSEE group left and formed Atria Software. The new company concentrated on software-development infrastructure rather than general-purpose consumer applications. Its best-known product was ClearCase, a configuration-management and version-control system developed during the early 1990s. ClearCase addressed the needs of professional engineering organizations managing multiple versions of source code and other software assets. Atria's corporate history continued through a series of combinations. The company merged with Pure Software to form Pure Atria. Pure Atria later merged with Rational Software. Rational was subsequently acquired by IBM in 2003. IBM continued to develop and market ClearCase after the acquisition, preserving the product's place in the enterprise software-development market even though Atria Software itself ceased to operate as a standalone company.

• 2003

  IBM acquires Rational Software

  [1]Atria Softwareen.wikipedia.org

  IBM purchased Rational Software and continued developing and marketing ClearCase.

• 1990

  Atria Software is founded

  [1]Atria Softwareen.wikipedia.org

  Atria Software Inc. was established on January 11, 1990, by former Apollo-related software developers.

• 1990

  ClearCase development begins

  [1]Atria Softwareen.wikipedia.org

  Atria developed ClearCase as a software configuration-management product during the early 1990s.

• 1989

  Hewlett-Packard acquires Apollo Computer

  [1]Atria Softwareen.wikipedia.org

  Hewlett-Packard's acquisition of Apollo Computer preceded the departure of developers who later founded Atria Software.

• Atria combines with Pure Software

  [1]Atria Softwareen.wikipedia.org

  Atria merged with Pure Software to create Pure Atria.

• Pure Atria combines with Rational Software

  [1]Atria Softwareen.wikipedia.org

  Pure Atria later merged with Rational Software, transferring Atria's product legacy into Rational.

Atria positioned itself as a provider of professional software-development infrastructure, with emphasis on configuration management and version control for engineering organizations.

• Software configuration management and version control

  ClearCase

  ClearCase was Atria Software's principal product. Developed in the early 1990s, it provided configuration-management and version-control capabilities for software-development organizations. The system became associated with enterprise-scale management of source-code revisions and related development assets. Following Atria's corporate succession through Pure Atria and Rational Software, IBM continued to develop and market ClearCase.

• 2003

  IBM acquisition of Rational SoftwareM&A

  Background

  Rational Software had become the successor organization connected to Atria's product portfolio.

  Action taken

  IBM acquired Rational Software.

  Aftermath

  IBM continued to develop and market ClearCase.

  Source

• Merge with Pure SoftwareM&A

  Background

  Atria's corporate history moved beyond its standalone structure through a combination with Pure Software.

  Action taken

  Atria merged with Pure Software to form Pure Atria.

  Aftermath

  The combined business later merged with Rational Software, while ClearCase continued as a product under successor ownership.

  Source

• Combination with Rational SoftwareM&A

  Background

  After the creation of Pure Atria, the business later combined with Rational Software.

  Action taken

  Pure Atria merged with Rational Software.

  Aftermath

  Rational Software was later acquired by IBM, which continued ClearCase development and marketing.

  Source

1. 1Atria Softwareen.wikipedia.org