Welcome to Volume 3, Number 1 of TOJDE


From Editor


ABSTRACT
TOJDE is meeting with its readers for the fifth time since 2000 January. But in this issue TOJDE has very important news for its readers. TOJDE will be published quarterly with this issue. This important changing was appeared in the mid 2000's because of intensive interest of readers and academicians, researchers and practicioners from all over the world. This idea and developments are evaluated by Steering Committee of TOJDE for a few mounths from many aspects of view. Finally, we decided that being a quarterly journal will be more benficial for TOJDE's publishing life and its readers after now. Because of these reasons we organized our plans in the name of "Quarterly TOJDE" for the future.

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