1. A method of displaying condition information which changes from time to time in a system transmitting and receiving the condition information from terminals connected to a network and displaying the condition information using a display unit, the system performing a process comprising: storing a reference time for determining a freshness level of the condition information in a terminal which receives the condition information from other terminals through the network; determining a visual freshness level of the condition information according to a determination of the freshness level of the condition information based upon said reference time and a visual freshness level determination table; and updating a display mode visually displaying the freshness level of the condition information based upon a visual representation of the condition information and the determined visual freshness level of the condition information, wherein the display unit displays the display mode of the condition information and a user can observe at a glance the freshness level of the condition information.
2. A method of displaying condition information as claimed in claim 1 , wherein determining the freshness level of the condition information comprises: calculating a difference between a time the terminal receives the condition information from the other terminals as the reference time and a time the other terminals reference the condition information in the terminal receiving the condition information; and determining the freshness level of the condition information depending upon a preset rule and the calculated difference.
3. A condition display system transmitting and receiving condition information which changes from time to time from terminals connected to a network and displaying the condition information using a display unit, comprising: a storage unit storing a reference time for determining a freshness level of the condition information in a terminal which receives the condition information from other terminals through the network; a visual freshness level determination unit determining a visual freshness level of the condition information according to a determination of the freshness level of the condition information based upon said reference time and a visual freshness level determination table, and updating a display mode visually displaying the freshness level of the condition information based upon a visual representation of the condition information and the determined visual freshness level of the condition information, wherein the display unit displays the display mode of the condition information and a user can observe at a glance the freshness level of the condition information.
4. A condition display system as claimed in claim 3 , wherein the visual freshness determining unit determines the freshness level of the condition information by calculating a difference between a time the terminal receives the condition information from the other terminals as the reference time and the time the other terminals reference the condition information in the terminal receiving the condition information and determining the freshness level of the condition information depending upon a preset rule and the calculated difference.
5. A condition display system as claimed in claim 3 , wherein as the visual freshness level, line widths of figure data corresponding to the display mode of the condition information are thick upon update of the condition information and line widths of the figure data are thinner as the freshness level deteriorates.
6. A condition display system as claimed in claim 3 , wherein as the visual freshness level, size of figure data corresponding to the display mode of the condition information are large upon update of the condition information and size of the figure data are smaller as the freshness level deteriorates.
7. A condition display system as claimed in claim 3 , wherein as the visual freshness level, a mark is added to each figure data corresponding to the display mode of the condition information and the mark is bold upon update of the condition information and the mark is lighter as the freshness level deteriorates.
8. A hand-held communication terminal connected to a network and automatically receiving through the network, at one of any time and in a predetermined timing, condition information automatically transmitted through the network from another terminal receiving the condition information from other terminals, at one of any time and in the predetermined timing, the hand-held communication terminal performing a process comprising: displaying a display mode of the condition information received through the network; determining a freshness level of the condition information; determining a visual freshness level of the condition information according to the determined freshness level of the condition information and a visual freshness level determination table; and updating the display mode visually displaying the freshness level of the condition information based upon the determined visual freshness level of the condition information to change the display mode visually displaying the freshness level of the condition information.
9. A hand-held communication terminal as claimed in claim 8 , further comprising a process of determining a passage of time as the freshness level of the condition information by calculating a difference between a current time and a time the another terminal receives the condition information.
10. A hand-held communication terminal as claimed in claim 8 , further comprising a process of determining a passage of time as the freshness level of the condition information by calculating a difference between a current time and a time the hand-held communication terminal receives the condition information.
11. A hand-held communication terminal as claimed in claim 8 , further comprising a process of determining a passage of time as the freshness level of the condition information by calculating a difference between a time the another terminal receives the condition information and a time the hand-held communication terminal receives the condition information.
12. A hand-held communication terminal as claimed in claim 8 , wherein the condition information is condition information of a user.
13. A hand-held communication terminal as claimed in claim 8 , wherein the condition information is condition information of a group of users and users in the group.
14. A method of displaying condition information which changes from time to time in a condition information management system transmitting and receiving the condition information from terminals connected to a network, comprising: storing, in a terminal, the condition information received from other terminals; determining, in the terminal, display mode changing information controlling a display mode displaying the received condition information, according to a process comprising: determining a freshness level of the condition information by calculating a difference between a time the terminal receives the condition information from the other terminals and a time the terminal transmits the condition information to the other terminals, determining a visual freshness level of the condition information according to the determined freshness level of the condition information and a visual freshness level determination table, determining the display mode changing information to visually display a change in the freshness level of the condition information based upon the determined visual freshness level of the condition information, and transmitting automatically to the other terminals the condition information and the display mode changing information.
15. A method of displaying condition information as claimed in claim 14 , wherein the terminal transmits automatically the condition information received by the terminal to the other terminals through the network upon receiving a condition information request from the other terminals.
16. A method of displaying condition information as claimed in claim 14 , wherein the terminal transmits automatically the condition information received by the terminal to the other terminals through the network in a predetermined timing to a predetermined list of the other terminals.
17. A method of displaying condition information as claimed in claim 16 , wherein the terminal storing the condition information receives from the other terminals a condition information notification request comprising terminal destinations and registers the terminal destinations included the request in the predetermined list of the other terminals.
18. A method of displaying condition information as claimed in claim 14 , wherein the terminal transmits to the other terminals a time the terminal receives the condition information as the display mode changing information.
19. A method of displaying condition information as claimed in claim 14 , wherein the terminal receives condition information of a user and the terminal transmits automatically the condition information of the user received by the terminal to the other terminals through the network upon receiving a condition information request from the other terminals, further comprising a process of: storing identifying information of the user in a reference user list upon receiving the condition information request; and displaying a figure mark corresponding to the display mode of the condition information of each user depending on users in the reference user list issuing the condition information request.
20. A computer readable recording medium storing a program to control a system transmitting and receiving condition information from terminals connected to a network and displaying the condition information using a display unit, according to a process comprising: storing a time a terminal receives the condition information from other terminals through the network; determining a freshness level of the condition information according to said stored time to determine a freshness of the condition information at a time the other terminals through the network reference the condition information in the terminal receiving the condition information; determining a visual freshness level of the condition information according to the determined freshness level of the condition information and a visual freshness level determination table; and updating a display mode visually displaying the freshness level of the condition information based upon a visual representation of the condition information and the determined freshness level of the condition information, wherein the display unit displays the display mode of the condition information and a user can observe at a glance the freshness level of the condition information.
21. A hand-held communication terminal connected to a network and automatically receiving through the network condition information automatically transmitted through the network from another terminal receiving the condition information from other terminals and the hand-held communication terminal displaying the condition information using a display unit, comprising: a visual freshness determination unit determining a visual freshness level of the condition information received by the hand-held communication terminal through the network from the terminal, according to a process comprising: determining a freshness level of the condition information; determining the visual freshness level of the condition information according to the determined freshness level of the condition information and a visual freshness level determination table; and a display controlling unit controlling a display mode visually displaying the freshness level of the condition information based upon a visual representation of the condition information and the determined visual freshness level of the condition information, wherein the display unit displays the display mode of the condition information.
22. A hand-held communication terminal as claimed in claim 21 , wherein the visual freshness determination unit calculates a difference between a current time and a time the another terminal receives the condition information for determining the freshness level of the condition information.
23. A hand-held communication terminal as claimed in claim 21 , wherein the visual freshness determination unit calculates a difference between a current time and a time the hand-held communication terminal receives the condition information for determining the freshness level of the condition information.
24. A hand-held communication terminal as claimed in claim 21 , wherein the visual freshness determination unit calculates a difference between a time the another terminal receives the condition information and a time the hand-held communication terminal receives the condition information for determining the freshness level of the condition information.
25. A hand-held communication terminal as claimed in claim 21 , wherein the condition information is condition information of a user.
26. A hand-held communication terminal as claimed in claim 21 , wherein the condition information is condition information of a group of users and users in the group.
27. A hand-held communication terminal as claimed in claim 21 , wherein the hand-held communication terminal transmits a condition information request to the another terminal and the another terminal transmits automatically the condition information received by the another terminal to the hand-held communication terminal through the network upon receiving the condition information request from the hand-held communication terminal.
28. A hand-held communication terminal as claimed in claim 21 , wherein the hand-held communication terminal automatically receives from the another terminal the condition information received by the another terminal through the network in a predetermined timing.
29. A hand-held communication terminal as claimed in claim 21 , wherein the hand-held communication terminal transmits a condition information request to the another and the another terminal receives condition information of a user and the another terminal transmits automatically the condition information of the user received by the another terminal to the hand-held communication terminal through the network upon receiving the condition information request from the hand-held communication terminal, wherein the another terminal comprises an acquiring request processing unit storing identifying information of other users issuing condition information requests corresponding to the condition information of the user in a reference user list upon receiving the condition information requests from the other users and the another terminal references the reference user list and automatically transmits to the hand-held communication unit, in addition to the condition information of the user, the identifying information of the other users issuing the condition information requests corresponding to the condition information of the user; and wherein the display controlling unit determines a figure mark corresponding to the display mode of the condition information of each user, depending on the identifying information of the other users issuing the condition information requests corresponding to the condition information of each user, and the display unit displays the figure mark corresponding to the display mode of the condition information of each user.
30. A method of providing a display mode displaying condition information which changes from time to time in a condition information management system transmitting and receiving the condition information from terminals connected to a network, the method comprising: storing in a terminal a reference time corresponding to a time the terminal receives the condition information from another terminal; and changing the display mode displaying the condition information according to timeliness information of the condition information determined using the reference time and a rule and a determination of a visual freshness level of the condition information according to the timeliness information and a visual freshness level determination table.
31. A display, comprising: a programmed computer processor controlling the display according to a process comprising: determining a freshness level of the condition information; determining a visual freshness level of the condition information according to the determined freshness level of the condition information and a visual freshness level determination table; and visually displaying the freshness level of the condition information based upon a visual representation of the condition information and the determined visual freshness level of the condition information, wherein a user can observe at a glance the freshness level of the condition information.
32. A method of displaying on a screen of a computer terminal an awareness information of a person using other computer terminal connected to a network, the method performing a process comprising: storing a reference time for determining a freshness level of the awareness information in a terminal which receives the awareness information from other terminals through the network; determining a visual freshness level of the condition information according to a determination of the freshness level of the condition information based upon said reference time and a visual freshness level determination table; and displaying a display mode visually displaying the awareness information with a variable icon pattern according to said visual freshness level, wherein a user of said terminal can observe at a glance the freshness level of the awareness information.
33. A method of controlling a condition information which changes from time to time in a condition information management server transmitting and receiving the condition information from terminals connected to a network, comprising: storing in said condition information management server the condition information received from each of said terminals; determining display mode changing information controlling a display mode displaying the received condition information, according to a process comprising: determining a freshness level of the condition information, determining a visual freshness level of the condition information according to the determined freshness level of the condition information and a visual freshness level determination table, determining the display mode changing information to visually display a change in the freshness level of the condition information based upon the determined visual freshness level of the condition information, and transmitting automatically the condition information received by the condition information management server and the display mode changing information to control the display mode displaying the received condition information to the other terminals through the network.
34. A method of displaying condition information as claimed in claim 33 , further comprising determining the freshness level of the condition information by calculating a difference between a time the condition information management server receives the condition information from each of said terminals and a time the condition information management server transmits the condition information to the other terminals.
