This photo is from the Chilton Computing archives [1]. It is used on
two pages [2,3], with slightly different captions:
* Keith Dancey using ECSTASY on a Sun 3/50 workstation, 1989 [1]
* Fig 2.4 ECSTASY in use on a Sun 3/50 workstation. (89RC5954) [2]
The ECSTASY page says [2]:
ECSTASY (Environment for Control System Theory, Analysis and
SYnthesis) was funded by SERC's Control and Instrumentation
Sub-Committee via the Computing and Design Techniques for Control
Engineering (CDTCE) Management Committee. ECSTASY had two aims: to
provide a common interface to well established packages in the area,
such as ACSL and ProMatLab and to provide a system in which new
control algorithms could be developed. The common front end approach
meant that control engineers would not have to learn a new interface
to use a new package while a common environment for new developments
meant that the results of such developments could be easily
transferred to other researchers and to industry.
In 1986, a survey of available control systems developed by academic
groups and commercial offerings was undertaken. The conclusion was
that none met the requirements although many had features that were
needed in a control environment. The decision was made to write the
new environment in C with the target being either SUN-3 workstations
or VAX systems.
An early version of ECSTASY was released to sites in 1988.
The basic environment was developed at UMIST's Control Systems
Centre with a block diagram editor provided by University College,
Swansea. RAL's role was to provide management and technical support,
and test the system. RAL also interfaced the TSIM simulation package
to ECSTASY. RAL organised two rounds of beta testing. The second
beta test took place in 1989 . This was a 3 month evaluation by 4
academic institutions in collaboration with some industrial
partners.
The main people involved at RAL were Damian Mac Randall and Keith
Dancey.
The licensing terms for photos in the galleries are [4]:
This Gallery currently contains over 3000 photographs that relate to
Computing and computer staff on the Chilton site that housed both
the Atlas Computer Laboratory and the Rutherford Appleton
Laboratory. We would be pleased to receive copies of any other
relevant photographs that people have.
We welcome re-use of this material provided suitable acknowledgement
is given to the Rutherford Appleton Laboratory and the Science and
Technology Facilities Council (STFC). A link to and mention of:
http://www.chilton-computing.org.uk/ would be appreciated.
The photographs in this archive currently fall into three main
classes:
* Photographs taken by Harwell's Photographics Section (Harwell)
* Photographs taken by Rutherford's Photographics Section
(1965-2003)
* Photographs from other sources (Other)
Links to the sections are available in the header bar with the
Rutherford set broken down into sections by date.
The Keith Dancey photograph is not under gallery/ though, so it's not
clear if it falls under the same permissive license. The Informatics
Department falls under the Rutherford Appleton Laboratory (RAL) [5],
which is explicitly listed in the license text. The Chilton page is
hosted by the Science and Technology Facilities Council (STFC)
[4,5,6]. In the United States, works produced by the government are
in the public domain [7], but the UK has a Crown copyright [8]. They
work around this by releasing many works under the Open Government
License [9], but there is not explicit copyright or licensing
information on either of the two pages showing this image [2,3].
[1]: http://www.chilton-computing.org.uk/inf/jpgs/fig2p4_89.jpg
[2]: http://www.chilton-computing.org.uk/inf/eng/environments/p002.htm
[3]: http://www.chilton-computing.org.uk/inf/literature/inf_annual_reports/p007.htm
[4]: http://www.chilton-computing.org.uk/gallery/home.htm
[5]: http://www.chilton-computing.org.uk/inf/home.htm
[6]: http://www.stfc.ac.uk/
[7]: http://en.wikipedia.org/wiki/Copyright_status_of_work_by_the_U.S._government
[8]: http://en.wikipedia.org/wiki/Crown_copyright#United_Kingdom
[9]: http://www.nationalarchives.gov.uk/doc/open-government-licence/
projects / reveal.js.git / commitdiff
