Age, Biography and Wiki

Ivar Jacobson was born on 2 September, 1939 in Ystad, Sweden, is an Ivar Hjalmar Jacobson is Swedish computer scientist. Discover Ivar Jacobson's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 84 years old?

Popular As N/A
Occupation N/A
Age 84 years old
Zodiac Sign Virgo
Born 2 September, 1939
Birthday 2 September
Birthplace Ystad, Sweden
Nationality Sweden

We recommend you to check the complete list of Famous People born on 2 September. He is a member of famous computer with the age 84 years old group.

Ivar Jacobson Height, Weight & Measurements

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Dating & Relationship status

He is currently single. He is not dating anyone. We don't have much information about He's past relationship and any previous engaged. According to our Database, He has no children.

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Ivar Jacobson Net Worth

His net worth has been growing significantly in 2023-2024. So, how much is Ivar Jacobson worth at the age of 84 years old? Ivar Jacobson’s income source is mostly from being a successful computer. He is from Sweden. We have estimated Ivar Jacobson's net worth, money, salary, income, and assets.

Net Worth in 2024 $1 Million - $5 Million
Salary in 2024 Under Review
Net Worth in 2023 Pending
Salary in 2023 Under Review
House Not Available
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Source of Income computer

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Timeline

1939

Ivar Hjalmar Jacobson (born 1939) is a Swedish computer scientist and software engineer, known as a major contributor to UML, Objectory, Rational Unified Process (RUP), aspect-oriented software development and Essence.

Ivar Jacobson was born in Ystad, Sweden, on September 2, 1939.

1962

He received his Master of Electrical Engineering degree at Chalmers Institute of Technology in Gothenburg in 1962.

1967

In 1967 at Ericsson, Jacobson proposed the use of software components in the new generation of software controlled telephone switches Ericsson was developing.

In doing this he invented sequence diagrams, and developed collaboration diagrams.

He also used state transition diagrams to describe the message flows between components.

Jacobson saw a need for blueprints for software development.

He was one of the original developers of the Specification and Design Language (SDL).

1976

In 1976, SDL became a standard in the telecoms industry.

At Objectory he also invented use cases as a way to specify functional software requirements.

At Rational, Jacobson and his friends, Grady Booch and James Rumbaugh, designed the UML and his Objectory Process evolved to become the Rational Unified Process under the leadership of Philippe Kruchten.

1985

After his work at Ericsson, he formalized the language and method he had been working on in his PhD at the Royal Institute of Technology in Stockholm in 1985 on the thesis Language Constructs for Large Real Time Systems.

After his master's degree, Jacobson joined Ericsson and worked in R&D on computerized switching systems AKE and AXE including PLEX.

1987

After his PhD thesis in April 1987, he started Objective Systems with Ericsson as a major customer.

1991

A majority stake of the company was acquired by Ericsson in 1991, and the company was renamed Objectory AB.

1992

Jacobson developed the software method Object-Oriented Software Engineering (OOSE) published 1992, which was a simplified version of the commercial software process Objectory (short for Object Factory).

1995

In October, 1995, Ericsson divested Objectory to Rational Software and Jacobson started working with Grady Booch and James Rumbaugh, known collectively as the Three Amigos.

2003

When IBM bought Rational in 2003, Jacobson decided to leave, after he stayed on until May 2004 as an executive technical consultant.

In mid-2003 Jacobson formed Ivar Jacobson International (IJI) which operates across three continents with offices in the UK, the US, Sweden, Switzerland, China, and Singapore.

2005

In November 2005, Jacobson announced the Essential Unified Process or “EssUP” for short.

EssUP was a new “Practice”-centric software development process derived from established software development practices.

It integrated practices sourced from three different process camps: the unified process camp, the agile software development camp and the process improvement camp.

Each one of them contributed different capabilities: structure, agility and process improvement.

Ivar has described EssUP as a "super light and agile" RUP.

IJI have integrated EssUP into Microsoft Visual Studio Team System and Eclipse.

2006

Standing on the experience of EssUP Ivar and his team, in particular Ian Spence and Pan Wei Ng, developed EssWork starting in 2006.

EssWork is a framework for working with methods.

It is based on a kernel of universal elements always prevalent in software development endeavors.

On top of the kernel some fifteen practices have been defined.

A team can create their own method by composing practices.

2009

In November 2009, Jacobson, Bertrand Meyer and Richard Soley ("the Troika") started an initiative called SEMAT (Software Engineering Method and Theory) to seek to develop a rigorous, theoretically basis for software engineering practice, and to promote its wide adoption by industry and academia.

SEMAT has been inspired by the work at IJI, but with a fresh new start.

2014

Essence, an OMG standard since November 2014, is the end result.

Methods are seen by Essence as combining software engineering and development techniques.

It seeks to make it possible to separate practices from methods, making it easier for them to be combined and reused to create methods that are best suited to the situation.

Jacobson has published several books and articles, a selection: