Virtual Trip

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VIRTUAL TRIP Ltd
Internet Systems and Technologies

VIRTUAL TRIP
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The company was founded in September 2001 by a team of
computer scientists and engineers from the University of
Crete in Greece, and Critical Publics, a U.S. based group
specializing in the application of new technologies to the
communications needs of corporations and public
organizations.
Virtual Trip is located at the Science & Technology Park of
Crete, at the city of Heraklion, from where it provides a range
of services in the fields of systems consulting, design and
back-end software engineering. The company has an
international presence through the operations of the Critical
Publics group in London.
The company aims to provide its services to the global
market, utilizing its considerable expertise in specialized
sectors such as digital security, high performance computing,
Internet systems development,and systems software.
The Virtual Trip model is based on exploiting the cluster of
specialist knowledge and expertise built-up around the
University of Crete and the Foundation of Research &
Technology, Hellas (FORTH) to deliver competitively priced
top end consulting, design and development work globally,
eliminating geographic barriers.
Virtual Trip not only provides its services as a primary
contractor but will also undertake the back-end development
work for projects as a member of consortia and as a
subcontractor.
Company Background

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Computer Security
- Consulting on the security aspects of computer networks
and information systems during their design phase
- Security testing of systems by the company’s team of five
highly skilled software engineers specialized in digital security
- Intergration and support of customisable digital security
platforms: WebSecure™, VoteSecure™ and AuctionSecure™
High Performance Computing
- Development of parallel applications
- Design, tuning and installation of cluster supercomputing
solutions
- Development of large database systems, using clustering-
capable Oracle 9i
System Software
- Systems programming, with special expertise in Unix-like
operating systems such as Linux,FreeBSD and Solaris
- Development of embedded software (in cooperation with
hardware design companies and manufacturing companies)
Expertise

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Internet Systems Development
- Consulting and design of internet information systems
- Building of highly secure web information systems
- Extensive expertise in XML-based technologies
- Areas of particular interest include corporate portals,
telemedicine,and e-learning
Voice Web Technologies
Providing a framework for the delivery of web services through
PSTN interfaces,using VoiceXML technology in combination
with ASR and TTS modules
Networking
- Intranet design
- Network monitoring software and configuration
- Traffic generators
- QoS aware applications development
Expertise

VIRTUAL TRIP
- C / C++,Java programming
- MPI,PVM,CC++,HPF parallel programming
- Python,Perl scripting
- FreeBSD,Linux,Solaris platforms
- TCP/IP and ATM technologies
- SQL / various RDBMS
- Z Object Publishing Environment (Zope) IBM WebSphere,
PHP
- Lotus Domino applications
- XML,VoiceXML
Technology Repertoire

VIRTUAL TRIP
Internet Security Tiger Team
A team of highly skilled software engineers that specializes in
the security aspects of computer systems and that is deployed
to attack existing systems in order to uncover their
vulnerabilities as well as to consult during their security
design.
Web Presentation Technologies
During the lifecycle of the company’s projects, it was often
found that there is a lot of effort needed on presentation
matters. To accommodate this need, Virtual Trip has
developed a partnership with Illusion, a team of software
engineers specializing in web presentation technologies.
Other Services

VIRTUAL TRIP
WebSecure™
A Web/Application Server solution where a highly secure web
site is needed
It uses Apache and Zope, and can be hosted on any BSD, Linux
or other Unix-like operating system
Specially patched Operating System and Web Application
Server code,making the system practically unhackable
Existing operational installations:
- www.mod.mil.gr
- www.armyjob.gr
www.hnms.gr to follow in the near future
VoteSecure™
A web-based voting system based on a distributed application
deploying cryptographic techniques that can be used to
perform arbitrary "vote" procedures
The result of a vote is computed by multiple tallying
authorities and the privacy of individual votes is protected by
coalitions up to a specified number of authorities
This makes it possible for anyone, including passive observers,
to check the validity of a vote
Wide-ranging applications in business, human resource
management and e-government
Products

AuctionSecure™
A web-based auctions platform that provides an anti-collusion
mechanism
It requires a multi-person authority as auctioneer providing
virtually universally verifiable results
Supports the following types of auctions:
- First price sealed offer auctions
- Vickrey auctions
- English auctions
- Multi-unit Auctions
Products

VIRTUAL TRIPRecent Projects
Co-development of the new web portal for the Greek Ministry
of Defense (www.mod.mil.gr)
- Based on WebSecure™
- XML-based application,completely dynamic content
- e-mail notification,SMS gateway and online forum facilities
Development of a Voice/Web portal for OTEPlus,the Strategic
Production Unit of OTE SA,the incumbent telecoms operator
in Greece (www.oteplus.gr)
- Extensive use of VoiceXML with IVR and TTS facilities
- Presentation of static,as well dynamic content through a
voice as well as visual interface
- Adding value to PSTN via delivery of web information
Co-operation with the security department of OTE SA in the
context of the P1150 EURESCOM study
- Investigation of e-voting scenarios,requirements,
implications and solutions
- Technical architectures,security infrastructures and roles
- Business cases for e-voting
Development of the www.armyjob.gr web portal
- Vertical portal seeking to tackle unemployment
- Application runs on WebSecure™
- Special security requirements with presence of dynamic data
Co-development of the new web portal of the Hellenic
National Meteorological Service (www.hnms.gr)
- Special need for very high hit ratio,more that 2M per day
- Portal based on Zope,with ZEO configuration
- Uses WebSecure™

Recent Projects
Co-development of the new web portal of Hellenic Ministry of
Transportation [to be launched soon]
Co-development of the new corporate portal of Commercial
Bank of Greece [to be launched soon]
Co-development of the new corporate portal of ZENON SA [to
be launched soon]
Co-development of the klikfilm.com streaming media portal
for the Turkish market in collaboration with Turkish ISP
Superonline.
Implementation of interfaces for the new portal of the
Antenna media group [to be launched soon]
Development of modules for Zope-based Critical Publics
Application Framework:
Web-based document repository
- A web-enabled system for the management of large
quantities of diverse documents
- Full integration with Hierarchy Management System.
- XML used for the generation of multiple content types from a
global representation.
Hierarchy Management System
- A web-enabled system for cataloging arbitrary Zope objects
- Categorisation may be based on arbitrary criteria
HTML Friendly Editor
- This product can be included in a variety of web-based
applications where the user should input information
- User-friendly Java applet interface that generates HTML code

VIRTUAL TRIP
SICS
Virtual Trip works closely with the Swedish Institute of
Computer Science (www.sics.se), the leading Swedish institute
in computer research
Cooperation is in the field of security in distributed computing
environments, especially in the development of the "Mozart"
programming platform
SCALI
Virtual Trip is proud to be a partner of Scalable Linux Systems
AS, (www.scali.com), a Norwegian company specializing in
cluster supercomputing
Virtual Trip is the representative of Scali AS in Greece,
providing support, consulting and parallel applications
development
Critical Publics
Virtual Trip is affiliated with the Critical Publics Group of
companies (www.criticalpublics.com) working in the area of
strategic communication, relationship management, visual
communication and design. The company is represented in
the UK through Critical Publics Ltd.,London
International Partnerships

VIRTUAL TRIP
Periklis Akritidis
Co-founder and partner of Virtual Trip Ltd. Participated in the
security design of the "Mozart" programming platform in
collaboration with the Swedish Institute of Computer Science
(SICS)
As an undergraduate, he worked with the Parallel and
Distributed Systems group of ICS/FORTH
He is experienced in C/C++, Java, Perl, Python programming
and Unix-like OS deployment and administration
His expert areas include Systems Programming, Computer
Security and Evolutionary Computation
Charalampos Gikas
Co-founder and managing partner of Virtual Trip Ltd. Also a
member of the Parallel and Distributed Systems group at
ICS/FORTH
He is experienced in C/C++, Java, Perl and Python
programming, and has considerable design and
implementation experience in the context of research
projects funded by the European Commission
Expertise includes Parallel and Distributed Systems, Genetic
Algorithms and Neural Networks
The Virtual Trip team
Partners

Dimitris Tsigos
Co-founder, managing partner, and commercial manager of
Virtual Trip Ltd. Attached to the Networks and
Telecommunications group at ICS/FORTH and in 1998 he was
affiliated with the CVAP Laboratory at the Royal Institute of
Technology,Stockholm,Sweden
Has specialist experience in Quality of Service in Packet-
Switching Networks and programming in C/C++ and Python
Other areas of interests include High Performance Networks,
Packet Switches Architecture, Parallel Programming and E-
Business
Miltos Vasilakis
Co-founder and partner of Virtual Trip Ltd. He has worked at
the Networks and Communications Centre of the University of
Crete
Experienced in C/C++, Java, Perl, Python, PHP and CGI
programming, and in Windows Media Services deployment
and administration
Other areas of expertise include Distributed Systems, Web
Technologies and Computer Games
Nikos Venturas
Co-founder and partner of Virtual Trip Ltd. Has worked as a
manager of the graphics team at the Atlantis Project of the
University of Crete
Experienced in C/C++, Java, Python, PHP programming and in
web development technologies (HTML,CSS,Javascript)
Other areas of expertise include Web Technologies,
Information Systems and Human-Computer Interaction

Giorgos Verigakis
Consultant to Virtual Trip Ltd. During 2000 he was affiliated
with Universitat Politecnica de Catalunya at Barcelona,
Department of Computer Architecture and has also worked at
the Networks and Communications Centre of the University of
Crete
Experienced in C/C++, Java, Perl, Python programming and
Unix OS deployment and administration
Other areas of interests include Systems Programming,
Computer Security and Computer Networks
Manos Dramitinos
A consultant of Virtual Trip Ltd with undergraduate and
postgraduate degrees from the Computer Science
Department of the University of Crete
At present completing a PhD at the Athens University of
Economics & Business
Development experience and research interest in the areas of
Electronic Business, Auctions, Software Agents, Distributed
Systems,and Systems Design
Artemis Voyiatzis
Artemis Voyiatzis holds a degree in Mathematics from the
University of Crete. Also holds a degree and an MSc in
Computer Science from the same university
At present completing a PhD programme at the Department
of Electrical and Computer Engineering of the University of
Patras
He collaborates with Virtual Trip in the area of Computer and
Network security and is an expert in smart cards technology
Consultants

Dimitris Koukis
Studying Computer Science at the University of Crete
Areas of expertise include systems programming and web
information systems
Extensive experience with ZOPE application servers.
Programming skills include C,C++,Java and Python
Vangelis Michalopoulos
Studying Informatics and Telecommunications at the
University of Athens
Areas of interest include object oriented programming, GUI
design and e-services
Experienced in C,C++,Java,Perl and Python

VIRTUAL TRIP
Stavros Sahtouris
Graduate of the Department of Computer Science of the
University of Crete
Experienced in HTML and Javascript. Programming skills
include C,C++,Java,Python
George Archon
Graduate of the Department of Computer Science of the
University of Crete
Experienced in XML, HTML and Javascrip and a variety of
computer graphics design tools. Programming skills include C
and C++
Illusion

VIRTUAL TRIP
- Hellenic Organization of Telecommunications (OTE)
- Commercial Bank of Greece
- Hellenic Ministry of Defense
- SuperOnline.net (Turkish ISP)
- Swedish Institute of Computer Science
- Hellenic National Meteorological Service
- Antenna Group (Nasdaq-listed Greek media group)
Clients

VIRTUAL TRIP
Greece
Email:info@vtrip-ltd.com
Tel: + 30 810 391 949
Fax: + 30 810 391 906
UK
Email:niki@criticalpublics.com
Contacts
URL
http://www.vtrip-ltd.com

Virtual Trip

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