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UML Diagrams
Zicomi Systems publishes some UML example diagrams online from the world famous UML dictionary.
Version 2.5 Released
Zicomi Systems is delighted to announce that version 2.5 of Zicomi Mentor is released. With support for UML 2.0 and all thirteen UML diagrams
Zicomi Systems' Director
speaks about the UML at Objects by Design - an informative interview
Partner Programme
Zicom Systems is delighted to announce a new world wide partner programme, become a partner today.
OMG Member
Zicom Systems is made a member of the OMG!

  • hundreds of interactive example UML diagrams
  • comprehensive explanations of UML 2
  • can be used as a UML tutorial
  • hints, tips and usage guidelines
  • self-paced quizzes
  • Online UML Dictionary

The product is easy to use, intuitive and can be used by business and technical people providing a reference that is appropriate for beginners and experts alike...

Zicom Mentor Screen
  Today's UML Element
Lifeline (Value)
Lifeline (Value)
'A lifeline (Value) is a visual synonym of a lifeline. It adds no additional semantics; it is simply an alternative presentation of the lifeline element adapted for use on a timing diagram. In this form of th... more...
  Today's Testimonial
"As a developer of UML training courses I have found Zicom Mentor to be an invaluable reference tool. It provides me with clear, concise definitions of UML elements coupled with interactive examples of actual UML models. I never fail to recommend it to my course participants."
Phil Robinson
Principle Consultant
Lonsdale Systems
  Today's Thought Leader
John Backus (1924 - .)
Backus is an American mathematician born in Pennsylvania. After a checkered interest in chemistry, the army and a brief stint at medical school he became interested in sound equipment and displayed a natural ability at mathematics. He studied math at Columbia University and then began work with IBM on the Selective Sequence Electronic Calculator. He and his team developed the FORTRAN language designed for mathematicians and scientists. He is also responsible for developing a notation called the Backus-Naur Form for describing the syntactical structure of programming languages and contributed significantly to the development of functional programming languages. A variant of the Backus-Naur Form is used in the UML specification.
Unified Modeling Language and UML are either registered

trademarks or trademarks of Object Management Group, Inc. in the

United States and/or other countries.