(1) This letter provides a recommendation for Eric Julien, who worked at CERN from October 1986 to February 1988 fulfilling his French military service obligation, and then again from March to May 1988 as a freelance contractor. (2) At CERN, Eric Julien helped select software to facilitate communication between personal and mainframe computers, and implemented software for PC disc backup and access to networking protocols. (3) In his final contract, Eric designed, implemented, and documented an interactive program for operators to control CERN's terminal switches, completing the project on time and to satisfaction.

1. ORGANISATION EURO.PEENNE POUR LA RECHERCHE NUCLEAIRE
EUROPEAN ORGANISATION FOR NUCLEAR RESEARCH
Sif3ge: Geneva Suisse
Seat: Geneva Switzerland
CERN
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Dear Colleague,
Laboratoire Europeen pour Ia Physique des Particules
European Laboratory for Particle Physics
To whom it may concern
Mr Eric .Julien
17 June 1988
I am pleased to provide a letter of reference for Mr Eric Julien, horn 10 June 1962. Mr Julien worked
in this group from October 1986 until Pehruary 1988 in replacement of his obligation for French
military service, and from March until May 19R8 as a freelance contractor.
.tt CERN we have almost 1000 IBM-compatible personal computers, and Mr .Julien was instrumental
in selecting the software which we now recommend for communication between personal and ·
mainframe computers. Under the general supervision of a senior software engineer, he installed, tested,
and evaluated numerous products. Ile also implemented software for PC disc backup over the
Ethernet network, and a package to allow access to a commercial version of the OSI Transport
Protocol from a PC program via a CERN standard calling sequence. We were very impressed by his
knowledge, technical ability, and mature approach.
In his final period as a contractor, he designed, implemented, and thoroughly documented, an
interactive program on a VAX computer to provide operator access to the control functions of the
CERN tern1inal switches. This project was carried out to our complete satisfaction within the agreed
timescale.
I can warmly recommend Mr Julien for any position as a software engineer, particularly in the area of
telecommunications.
Yours sincerely,
~~~
Brian Carpenter, M.A.,M.Sc.,Ph.D,M.I.E.E.,C.Eng.
Group I,eadcr
Communications Systems
Data Handling Division