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{{Short description|Software company in United Kingdom}}
'''Praxis High Integrity Systems''' (formerly known as '''Praxis Critical Systems''') is a British [[software house]] that specialises in [[critical system]]s. They are based in [[Bath, Somerset|Bath]], [[England]] and since 2001 also have offices in [[London]] and [[Loughborough]].
{{Use dmy dates|date=April 2022}}
'''Altran UK''' (formerly known as '''Altran Praxis''', '''Praxis High Integrity Systems''', '''Praxis Critical Systems''', '''Altran Xype''', '''Xype''' and '''Altran Technologies''') is a division of parent company [[Altran]]. Altran Praxis was a British [[software house]] that specialised in [[critical system]]s.<ref>[http://www.altran.co.uk/about-us/ About us], Altran.</ref> This role is continued under the banner of high-tech engineering consultancy services provided by the rest of the Altran group.


The division formerly known as Praxis (the critical systems specialists) is based in [[SouthGate, Bath|SouthGate]], [[Bath, Somerset|Bath]], [[England]], close to [[Bath Spa railway station]], and also has offices in [[London]], [[Loughborough]], [[Paris]], [[Sophia Antipolis]], and [[Bangalore]].
⚫
The company '''Praxis Systems Limited''' was founded by [[Martyn Thomas]] and [[David Bean]] in [[1983]].

It was incorporated on [[June 1]], [[1983]] and commenced business on [[July 1]], [[1983]].
Altran [[United Kingdom|UK]] as a whole has offices in [[Bath, Somerset|Bath]], [[Bristol]], [[London]], [[Loughborough]], [[Manchester]], [[Slough]] and [[Coventry]].
⚫
On [[June 28]], [[1985]] it became a [[Public limited company]] '''Praxis Systems plc'''.

⚫
Until [[1988]] Praxis was owned almost entirely by its staff.
== History ==
⚫
In [[1988]] Praxis obtained venture capital finance in order to provide funds for future acquisitions and working capital for continued growth.

⚫
On [[November 27]], [[1992]] Praxis was acquired by [[Deloitte Consulting]] (then known as Touche Ross), an international firm of accountants and management consultants.

⚫
The company '''Praxis Systems Limited''' was founded by [[Martyn Thomas]] and David Bean in 1983:
⚫
it was incorporated on 1 June 1983 and commenced business on 1 July 1983. On 28 June 1985 it became a [[Public limited company]] '''Praxis Systems plc'''.
⚫
Until 1988, Praxis was owned almost entirely by its staff.
⚫
In 1988 Praxis obtained venture capital finance in order to provide funds for future acquisitions and working capital for continued growth.
⚫
On 27 November 1992 Praxis was acquired by [[Deloitte Consulting]] (then known as Touche Ross), an international firm of accountants and management consultants.
The critical systems part of the company was acquired by the [[Altran Group]] in 1997.
The critical systems part of the company was acquired by the [[Altran Group]] in 1997.
In 2004, Praxis Critical Systems and [[HIS Consulting]] merged to form Praxis High Integrity Systems, a leading specialist in critical systems engineering.
In 2004, Praxis Critical Systems and [[HIS Consulting]] merged to form Praxis High Integrity Systems. In January 2010, the company was merged with SC2 by Altran to form Altran Praxis. {{Citation needed|date=December 2019}}The company has since been rebranded to Altran along with Altran Xype and Altran Technologies.
In December 2012, AdaCore along with Altran Praxis released SPARK Pro 11.<ref>{{Cite news|url=http://www.drdobbs.com/tools/adacore-and-altran-praxis-release-spark/240143008|title=AdaCore and Altran Praxis Release SPARK Pro 11|work=Dr. Dobb's|access-date=2018-09-04}}</ref> In 2013, Altran acquired Sentaca, a specialty telecoms consultancy.{{Citation needed|date=January 2020}}


A distinguishing feature of the company is its extensive use of [[formal methods]] such as the [[Z notation]] and the [[SPARK (programming language)|SPARK]] toolset (acquired through the takeover of the developers [[Program Validation Limited]] in 1993) in its approach to improving the reliability of [[software engineering]]. A major project using Z has been the [[United Kingdom]]'s [[National Air Traffic Services]] (NATS).
A distinguishing feature of the former Praxis office's is its extensive use of [[formal methods]] such as the [[Z notation]] and the [[SPARK (programming language)|SPARK]] toolset (acquired through the takeover of the developers [[Program Validation Limited]] in 1994) in its approach to improving the reliability of [[software engineering]].<ref>[http://www.altran-praxis.com/whitePapers.aspx Publications], Praxis.</ref> A major project using Z has been an enhancement for the [[United Kingdom]]'s [[National Air Traffic Services]] (NATS).<ref>[http://www.nats.co.uk/article/218/62/nats_pioneers_biggest_atc_advance_since_radar.html NATS pioneers biggest ATC advance since radar]{{Dead link|date=October 2018 |bot=InternetArchiveBot |fix-attempted=yes }}, NATS, 2007.</ref><ref>Antony Savvas, [http://www.computerweekly.com/Articles/2007/03/07/222258/nats-claims-the-biggest-air-traffic-control-innovation-since.htm NATS claims the biggest air traffic control innovation since radar], ''[[Computer Weekly]]'', 7 March 2007.</ref>


== See also ==
== See also ==

* [[J. Anthony Hall|Anthony Hall]], a former employee, now a consultant
* [[J. Anthony Hall|Anthony Hall]], a former employee, now a consultant
* [[IPSE]] (Praxis was a key participant in the influential IPSE2.5 project)
* [[Integrated Project Support Environment|IPSE]] (Praxis was a key participant in the influential IPSE2.5 project)


== External links ==
== References ==
{{reflist}}


== External links ==
* [http://www.praxis-his.com/ Company website]
* [http://www.altran.co.uk/ Company website]


[[Category:Companies established in 1983]]
[[Category:Companies established in 1983]]
[[Category:Companies based in Somerset]]
[[Category:1983 establishments in England]]
[[Category:Companies based in Bath, Somerset]]
[[Category:Software companies of the United Kingdom]]
[[Category:Software companies of the United Kingdom]]
[[Category:Formal methods]]
[[Category:Formal methods organizations]]
[[Category:Bath]]




Latest revision as of 08:55, 13 July 2023

Altran UK (formerly known as Altran Praxis, Praxis High Integrity Systems, Praxis Critical Systems, Altran Xype, Xype and Altran Technologies) is a division of parent company Altran. Altran Praxis was a British software house that specialised in critical systems.[1] This role is continued under the banner of high-tech engineering consultancy services provided by the rest of the Altran group.

The division formerly known as Praxis (the critical systems specialists) is based in SouthGate, Bath, England, close to Bath Spa railway station, and also has offices in London, Loughborough, Paris, Sophia Antipolis, and Bangalore.

Altran UK as a whole has offices in Bath, Bristol, London, Loughborough, Manchester, Slough and Coventry.

History

[edit]

The company Praxis Systems Limited was founded by Martyn Thomas and David Bean in 1983: it was incorporated on 1 June 1983 and commenced business on 1 July 1983. On 28 June 1985 it became a Public limited company Praxis Systems plc. Until 1988, Praxis was owned almost entirely by its staff. In 1988 Praxis obtained venture capital finance in order to provide funds for future acquisitions and working capital for continued growth. On 27 November 1992 Praxis was acquired by Deloitte Consulting (then known as Touche Ross), an international firm of accountants and management consultants. The critical systems part of the company was acquired by the Altran Group in 1997. In 2004, Praxis Critical Systems and HIS Consulting merged to form Praxis High Integrity Systems. In January 2010, the company was merged with SC2 by Altran to form Altran Praxis. [citation needed]The company has since been rebranded to Altran along with Altran Xype and Altran Technologies. In December 2012, AdaCore along with Altran Praxis released SPARK Pro 11.[2] In 2013, Altran acquired Sentaca, a specialty telecoms consultancy.[citation needed]

A distinguishing feature of the former Praxis office's is its extensive use of formal methods such as the Z notation and the SPARK toolset (acquired through the takeover of the developers Program Validation Limited in 1994) in its approach to improving the reliability of software engineering.[3] A major project using Z has been an enhancement for the United Kingdom's National Air Traffic Services (NATS).[4][5]

See also

[edit]
  • Anthony Hall, a former employee, now a consultant
  • IPSE (Praxis was a key participant in the influential IPSE2.5 project)

References

[edit]
  1. ^ About us, Altran.
  2. ^ "AdaCore and Altran Praxis Release SPARK Pro 11". Dr. Dobb's. Retrieved 4 September 2018.
  3. ^ Publications, Praxis.
  4. ^ NATS pioneers biggest ATC advance since radar[permanent dead link‍], NATS, 2007.
  5. ^ Antony Savvas, NATS claims the biggest air traffic control innovation since radar, Computer Weekly, 7 March 2007.
[edit]


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