JP2003296259A - Presence method, presence program, and recording medium for the program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a presence method which reduce the concentration of loads on a server and a database by performing priority control over inquiry intervals of conversing persons and decreasing unnecessary inquiries. <P>SOLUTION: In the presence method of allowing a user terminal 1 of a communication system such as IM to inquire the state (online, offline, absence, etc.), of a registered colloquist of a server 5, communication states of the frequency of communication with a colloquist registered in the user's terminal 1, the number of exchanged messages, the frequency of message exchanging, a communication time, etc., are observed to store their observed values by colloquists, the observed values of the communication states are converted into priority points according to a predetermined conversion rule, and intervals of state inquiry of each colloquist are determined or varied according to the priority points calculated for the colloquist. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention inquires the server about the status (online, offline, out, etc.) of the interlocutor registered in the terminal in a terminal used for implementing a communication system such as IM (Instant Messenger). The present invention relates to a presence method, a presence program, and a recording medium for the program.

[0002]

2. Description of the Related Art In recent years, in communication systems such as IMs (instant messengers), many presence functions have been used to easily know the states of other users (online, offline, out, etc.). This presence function consists of a system for registering one's own status and a system for acquiring the status of other users.

A system for registering one's own status is a server that manages the presence function of the status of the user when the user terminal goes online or offline, or when the user changes the status by himself. Register in the database. On the other hand, a system that knows the status of other users uses the status of the interlocutors included in the interlocutor list (a list of IDs and names of interlocutors) managed by the user's own terminal as a server. It is possible to know the state of the interlocutor at any time by inquiring regularly to.

In the conventional presence technology, all the interlocutors are inquired about the state of the interlocutors registered in the terminal at equal intervals and at very short intervals (10 to 30 seconds). The reason for this is that in communication, it is very important to know whether or not the other party is currently in a communicable state when he / she wants to contact the other party, and in order to realize this, near real-time status confirmation work is required. Because. However, if this frequent confirmation work is performed, the load on the server and database will become enormous as the number of users increases, and the construction cost of the distributed control system of the server and database to compensate for it will be enormous. There is a problem that

In order to solve this problem, a method of devising an inquiry method from a user terminal to a server or a database and a method of devising a data acquisition method in a server or a database are conceivable. Solving the problem of server and database load by devising a method of inquiring from the user terminal to the server and database.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and the presence function does not inquire all interlocutors at equal intervals about the inquiry interval from the terminal to the server or database. Instead, by observing various communication situations and service usage situations, etc., priority control is given to the inquiry interval of each interlocutor, and unnecessary queries are reduced as much as possible to reduce the load on the server and database. Aims to reduce concentration.

[0007]

The present invention employs the following means in order to solve the above problems. As its mechanism, IM with presence function
By using various methods to observe terminals such as (instant messenger) and servers that manage the state, change the state inquiry interval for each interlocutor registered on the terminal based on the observation data. .

Specifically, priority points are given to each interlocutor registered in the terminal, and according to the conversion rule of the system, interlocutors with higher priority points have shorter inquiry intervals and smaller priority points. The interlocutor lengthens the inquiry interval. The system sets an average inquiry interval to all the interlocutors in advance, and changes the interrogation interval for each interlocutor according to the priority point.

The present invention provides several types of mechanisms for setting the priority points for each interlocutor. First, the first
As a method of, the observation of communication with the interlocutor is used. For example, considering the case where there are 20 interlocutors registered in the terminal, it becomes questionable whether the user is communicating with the same frequency as the 20 people. Perhaps you may communicate daily with some people, or only once a month with others.

In such a case, it is not efficient to check the states of a person who frequently talks with a person who rarely talks at similar intervals. Especially in the latter case, it is very wasteful to frequently check the status of the other party who rarely communicates.

Therefore, the user terminal observes the communication status such as the number of times of communication with the interlocutor, the number of message exchanges, the frequency of message exchange, and the call time. The more the communication with the interlocutor is, the more the priority point of the interlocutor is increased, and conversely, the less the communication point is, the lower the priority point is.

Next, the present invention uses, as a second method, observing the usage status of the terminal of each user. The user terminal observes the usage time zone of the user's service, the average usage time, the average offline time, the status change frequency, etc.
Register it on the server. This registration interval is calculated by registering the data observed at relatively long intervals such as monthly or weekly. The user acquires the above information of the interlocutor registered in the terminal at regular intervals (relatively long interval as at the time of registration), manages and saves it for each interlocutor, and then performs the following control .

First, regarding the use time zone, the priority point is increased when the time is short and the priority point is decreased when the time is far. Regarding the average use time, when the interlocutor's situation is currently online, the priority point is increased if the average use time is long and decreased if the average use time is short. Regarding the average offline time, when the interlocutor's situation is currently offline, the priority point is decreased if the average offline time is long, and the priority point is increased if the average offline time is short. Regarding the frequency of state change, if the state change interval is short, the priority point is increased, and if it is long, the priority point is decreased. For example, by observing the use time zone, it is possible to lengthen the inquiry interval during the day for interlocutors who use only at night, and reduce unnecessary inquiry work.

Next, the present invention utilizes, as a third method, observing the load condition of the server. this is,
Instead of setting the inquiry interval for each interlocutor, change the average interrogation interval for all interlocutors. The server counts the number of connected users and sets the load value of the server according to the number of users. This conversion from the number of users to the load value uses a conversion rule predetermined by the system. The user terminal acquires this load value when connecting to the server. If the load value is high, the average inquiry interval is lengthened, and if the load value is low, the inquiry interval is shortened. When the load on the server is high, the presence interval from all users is automatically lengthened, which is extremely effective in reducing the load.

According to the present invention, the above-mentioned first to third methods are used to perform priority control for changing the inquiry interval for each interlocutor, thereby making an efficient inquiry to the server or database. Therefore, the present invention, like the prior art,
Unlike the method of checking the status of each interlocutor registered in the terminal at the same interval, each interlocutor can be observed by observing the communication with the interlocutor or observing the service usage status of each user. By automatically setting the optimum inquiry interval and eliminating inefficient status confirmation work as much as possible, the average inquiry interval for all interlocutors can be lengthened. As a result, the frequency of access to the server or database can be reduced, and the load on the server or database can be reduced.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a diagram showing a first embodiment of the present invention. In the first embodiment, the observation of the communication situation with the interlocutor is used. Reference numeral 1 in the figure denotes a user's terminal, and the list of interlocutors 2 is stored in the terminal. 3 and 4 are terminals used by the interlocutors stored in the interlocutor list 2. Reference numeral 5 is a server providing a presence function, and 6 is a database.

The user terminal 1 observes the communication with the interlocutor as shown in the figure. Here, the contents to be observed include the number of communications, the number of message exchanges, the frequency of message exchanges, and the call duration. The utilization terminal 1 saves this communication status in the terminal and periodically converts it into priority points as shown in the figure according to the priority point conversion table prepared by the system in advance.
Set priority points. Here, the more active the communication with the interlocutor, the higher the priority point, and the less communication, the lower the priority point.

The utilization terminal 1 determines the inquiry interval of each interlocutor from the priority points for each interlocutor according to the interrogation interval conversion table prepared in advance by the system, as shown in the figure. The utilization terminal 1 confirms the state by the presence function as shown in the figure based on the inquiry interval of each interlocutor.

FIG. 2 is a system configuration diagram of the first embodiment of the present invention, FIG. 3 is a diagram showing an example of changing the inquiry interval, and FIG. 4 is a processing flow in the first embodiment of the present invention. FIG.

As shown in FIG. 2, the user terminal 1 uses the interlocutor list 2, which is the list information of interlocutors, the number of communications with the interlocutors registered in the interlocutor list 2, the number of message exchanges, and the message exchange. The communication status observation means 10 for observing the communication status such as frequency and call time, the communication status storage means 11 for saving the observed value of the observed communication status for each interlocutor, and the observation value of the communication status for each interlocutor are given priority. The priority point conversion table 14 having conversion rule information that is defined in advance for converting the communication point to the communication point, and the priority point conversion table 14 is referred to convert the observation value of the communication status of each interlocutor to the priority point. Priority point setting means 12, which converts priority points into inquiry intervals An inquiry interval conversion table 15 having conversion rule information defined in advance, and an inquiry for determining or changing the status inquiry interval of each interlocutor according to the priority point of each interlocutor by referring to the interquery conversion table 15. The interval priority control means 13 is provided.

The processing of the user terminal 1 shown in FIG. 2 will be described below with reference to FIGS. 3 and 4. First, the communication status observing means 10 of the user terminal 1 observes the communication status with the interlocutors stored in the interlocutor list 2 of its own terminal (the number of times of communication, the number of message exchanges, the frequency of message exchange, call time, etc.). (Step S1). Communication status storage means 11
Saves the observed value of this communication status in the terminal (step S2). In this example, the number of communications and the call duration are observed for each interlocutor, and the observation result is stored in the interlocutor list 2. FIG. 3A shows an example of saving the observation results in the interlocutor list 2, for example, the number of times of communication with the interlocutor A is 30 times, and the talk time is 100 minutes.

Further, the priority point setting means 12 of the user terminal 1 periodically converts the observed value of the communication status into priority points according to the priority point conversion table 14 prepared in advance by the communication system,
Priority points are set (step S3). The priority point conversion table 14 stores information that increases the priority point for each interlocutor as the observed value of the communication status increases, and conversely decreases the priority point as the communication value decreases.

FIG. 3B shows an example of the priority point conversion table 14, and in the first priority point conversion table 14-1, the priority points are decreased or increased according to the number of communications. The value is stored.
Further, in the second priority point conversion table 14-2, a value for decreasing or increasing the priority points according to the call time is stored.

Next, the inquiry interval priority control means 13
Determines or changes the inquiry interval for each interlocutor from the priority points for each interlocutor according to the interrogation interval conversion table 15 prepared in advance by the communication system (step S4). FIG. 3C shows an example of the inquiry interval conversion table 15. In this example, if the priority point in the inquiry interval conversion table 15 is -10 or less, the inquiry interval is extended by 10 seconds, and if the priority point is in the range of -9 to -5, the inquiry interval is set to 5. It is shown that the inquiry interval is shortened by 3 seconds if the priority point is 10 or more.

FIG. 3D shows an example of calculation of the inquiry interval for each interlocutor. Here, an example will be described in which the inquiry interval is changed according to the priority point based on the average inquiry interval of all the interlocutors. It is assumed that the average inquiry interval is 5 seconds. This value may be a value preset in the usage terminal 1 or a value acquired from the server 5.

The inquiry interval of the interlocutor A will be determined as follows. From the interlocutor list 2 of FIG. 3A, it can be seen that the number of times of communication with the interlocutor A is 30. Priority point conversion table 14 of FIG.
From -1, it is determined that the priority point corresponding to 30 times of communication is 8. In addition, interlocutor A
Is 100 minutes, and similarly, from the priority point conversion table 14-2, it is determined that the priority point corresponding to 100 minutes of the call time is 6.

The value (8 + 6 = 14) obtained by combining these two priority points becomes the priority point of the interlocutor A, which corresponds to the priority point = 14 from the inquiry interval conversion table 15 of FIG. 3 (c). It is required that the adjustment value of the inquiry interval is -3 seconds.

Since the average inquiry interval is 5 seconds, the inquiry interval priority control means 13 determines the inquiry interval of the interlocutor A to be "5 seconds-3 seconds = 2 seconds". With respect to the other interlocutors B to D, the inquiry interval is determined by similar processing.

The utilization terminal 1 confirms the state by the presence function based on the inquiry interval of each interlocutor determined as described above (step S5).

FIG. 5 is a diagram showing a second embodiment of the present invention. In the second embodiment, observing the usage status of each interlocutor is used. In FIG. 5, the usage terminal 3
Observes the service usage status of the user as shown in the figure. Here, the contents to be observed include a use time zone, an average use time, an average offline time, a state change interval, and the like.
The usage terminal 3 registers the observed service usage status in the database 6 of the server 5 at regular intervals as shown in the figure. The user's utilization terminal 1 acquires the service utilization status registered by the interlocutor at regular intervals as shown in the figure.

The utilization terminal 1 periodically converts the received service utilization status into priority points according to the priority point conversion table defined by the system, and sets the priority points as shown in the figure. As for the conversion method, the utilization time zone is compared with the current time, and the priority point is increased if the time is close to the current time, and the priority point is decreased if the time is far. Regarding the average use time, when the interlocutor's situation is currently online, the priority point is increased if the average use time is long and decreased if the average use time is short. Regarding the average offline time, when the interlocutor's situation is currently offline, the priority point is decreased if the average offline time is long, and the priority point is increased if the average offline time is short. Regarding the state change interval, if the interval is short, the priority point is increased, and if it is long, the priority point is decreased.

The utilization terminal 1 determines the inquiry interval for each interlocutor from the priority points according to the inquiry interval conversion table prepared by the system, as shown in the figure. The utilization terminal 1 confirms the state by the presence function as shown in the figure based on the inquiry interval of each interlocutor.

FIG. 6 is a system configuration diagram of the second embodiment of the present invention, and FIG. 7 is a diagram showing a processing flow in the second embodiment of the present invention.

As shown in FIG. 6, the utilization terminal 1 acquires the conversation participant list 2, which is the list information of the conversation participants, and the utilization condition acquisition means 18 for acquiring the service utilization condition of the terminal of each user from the server 5. The priority point conversion table 14 having conversion rule information that is defined in advance for converting the observed value of the service usage status into priority points, and referring to the priority point conversion table 14, the service usage status of each interlocutor Priority point setting means 12 for converting the observed values of the above into priority points, an inquiry interval conversion table 15 having conversion rule information defined in advance for converting the priority points into inquiry intervals, and an inquiry interval conversion table 15 thereof. Inquiry interval priority control means 13 for determining or changing the status inquiry interval of each interlocutor according to the priority point of each interlocutor is provided. That.

Further, the utilization status observing means 16 for observing the utilization status of the service such as the utilization time zone of the user's service, the average utilization time, the average offline time, the status change interval (or frequency), the observed utilization status regularly. It has a usage status registration means 17 for totaling and registering the results in the server 5. The other utilization terminals 3 and the like have the same means.

First, the utilization status observing means 16 of the utilization terminal 1
(In the case of the use terminal 3, the use status observing means 36), the use time zone of the user, average use time, average offline time,
Observe the service usage status such as the status change interval (step S11). Usage status registration means 17 (usage status registration means 3
7) registers the observed value of the service usage status in the database 6 of the server 5 via the network 8 (step S12).

When the utilization terminal 1 determines the state inquiry interval for each interlocutor, the utilization status acquisition means 1 of the utilization terminal 1
8 is the observed value of the service usage status registered by the interlocutor,
It is acquired from the server 5 via the network 8 (step S13). The priority point setting means 12 converts the observation value of the service usage status of each interlocutor acquired from the server 5 into a priority point according to the priority point conversion table 14, and sets the priority point (step S1).
4).

In the conversion using the priority point conversion table 14, the utilization time zone is compared with the current time, and if the time is close to the current time, the priority point is increased,
If it is far, the priority points will be reduced. Regarding the average use time, when the interlocutor's situation is currently online, the priority point is increased if the average use time is long and decreased if the average use time is short. Regarding the average offline time, if the state of the interlocutor is currently offline, the priority point is decreased if the average offline time is long,
If it is short, the priority point is increased. Regarding the state change interval, if the interval is short, increase the priority points,
If it is longer, the priority points are reduced.

Next, the inquiry interval priority control means 13
Determines the inquiry interval for each interlocutor from the priority points according to the inquiry interval conversion table 15 prepared in advance by the communication system (step S15).
Then, the utilization terminal 1 confirms the state by the presence function based on the inquiry interval of each interlocutor (step S16).

FIG. 8 is a diagram showing a third embodiment of the present invention. In the third embodiment, the average inquiry interval is adjusted based on the load value of the server 5. Reference numeral 7 in the figure represents all the current users who are connected to the server 5 and the database 6 which provide this presence function.

First, as shown in the figure, the server 5 counts the number of users currently connected, and according to the load value conversion table prescribed by the system, the load value of the server 5 is calculated from the number of users as shown in the figure. Ask. When the service is connected, the user terminal 1 acquires the load value from the server 5 as shown in the figure and controls the average inquiry interval in the presence function as shown in the figure according to the load value. Increase the average inquiry interval, and if the load value is small, shorten the average inquiry interval.

FIG. 9 is a system configuration diagram of the third embodiment of the present invention, and FIG. 10 is a diagram showing a processing flow in the third embodiment of the present invention.

As shown in FIG. 9, the server 5 providing this system has a connected user number counting means 51 for counting the number of users connected to the server 5,
It has a load value calculation means 52 for calculating the load value of the server 5 in accordance with the number of connected users according to the load value conversion table 53 which stores the conversion rules defined in advance.

Further, the utilization terminal 1 has a load value acquisition means 101 for obtaining the load value of the server 5 calculated by the load value calculation means 52 when connecting to the server 5, and the utilization terminal 1 in advance.
The average inquiry interval information 103 for all the interlocutors to the server 5 which is set to
If the load value obtained above is high, increase the value of
It has an inquiry interval adjusting means 102 for reducing the load value when the load value is low.

The processing in the third embodiment is as follows. The connected user number counting means 51 of the server 5 counts the number of users who are currently connected (step S21), and the load value calculation means 52 uses the load value conversion table 53 defined in advance by the system to calculate the number of users from the server. The load value of 5 is calculated (step S2
2).

The load value acquisition means 101 of the utilization terminal 1 acquires the load value from the server 5 when connecting to the server 5 via the network 8 (step S31). Next, the inquiry interval adjusting means 102 uses the average inquiry interval information 10 from the server 5 to the servers 5 of all the interlocutors.
3 is acquired (step S32). If the user terminal 1 holds in advance the average inquiry interval information 103 for all the interlocutors to the server 5, step S32 can be omitted.

From the load value acquired by the load value acquisition means 101 and the average inquiry interval information 103, the inquiry interval adjusting means 102 lengthens the average inquiry interval if the load value is large, and if the load value is small, the average inquiry interval. The average inquiry interval is adjusted so as to shorten (step S33). Then, the utilization terminal 1 confirms the state by the presence function based on the adjusted inquiry interval (step S34).

The present invention can be implemented by combining some of the first to third embodiments described above.

The above processing can be realized by a computer and a software program, and the program is stored in an appropriate recording medium such as a computer-readable portable medium memory, a semiconductor memory, a hard disk, and the like. It can be executed by the computer. Further, the program can be downloaded from another computer via a communication line, and can be installed and executed.

[0050]

As described above, the following effects can be obtained by using the present invention.

(1) By observing the communication between the user and the interlocutor, and using the observation for the interrogation of the status of each interlocutor, the interrogator who makes many communications has a short interrogation interval, and can communicate almost By lengthening the inquiry interval of the interlocutors who are not involved, while appropriately acquiring the interlocutor's state that the user wants to know more, by reducing redundant state inquiries, the average state inquiry interval is lengthened. By doing so, it becomes possible to reduce the load on the server and database.

(2) By observing the usage status of the service of each user, it becomes possible to make an appropriate status inquiry suitable for the usage characteristics of the interlocutor. For example, for an interlocutor who uses the service only at night, the inquiries should be shortened at night and made longer at daytime. With such a method, it is possible to reduce the load on the server and the database by reducing redundant status queries and lengthening the average status query interval.

(3) By using the load of the server for the presence interval, when the load of the server is high, the average inquiry interval for all the interlocutors managed by all the used terminals is lengthened, and when the number of users is large. It is possible to prevent the system from failing due to the load of queries.

By using the above individually or in combination, the load on the server and the database can be reduced,
Originally, it becomes possible to reduce the cost of the server and database to avoid this load.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a system configuration diagram of the first embodiment of the present invention.

FIG. 3 is a diagram showing an example of changing an inquiry interval.

FIG. 4 is a diagram showing a processing flow of the first embodiment of the present invention.

FIG. 5 is a diagram showing a second embodiment of the present invention.

FIG. 6 is a system configuration diagram of a second embodiment of the present invention.

FIG. 7 is a diagram showing a processing flow of a second embodiment of the present invention.

FIG. 8 is a diagram showing a third embodiment of the present invention.

FIG. 9 is a system configuration diagram of a third embodiment of the present invention.

FIG. 10 is a diagram showing a processing flow of a third embodiment of the present invention.

[Explanation of symbols]

1,3,4 User terminal 2 List of participants 5 servers 6 database

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 7/173 610 H04N 7/173 610Z F term (reference) 5B085 AA08 BA07 BE04 BG01 BG02 BG03 BG07 5C064 BA01 BA07 BB07 BC07 BC18 BC23 BD02 BD07 5K030 GA13 HA08 HB17 HC13 KA07 KX29 LC11 5K101 KK02 KK08 LL12 MM07 PP06

Claims (9)

[Claims] 1. A presence method in which a user terminal of a communication system for performing message communication inquires of a server about the state of an interlocutor, and observes the communication status with the interlocutor registered in the user terminal of the user. Based on the communication situation observation process, the communication situation preservation process of saving the observation value of the communication situation for each interlocutor, and the observation value of the communication situation, the interrogator's state inquiry interval according to a predetermined conversion rule. Presence method, which determines or changes the inquiry interval priority control process. 2. A presence method in which a terminal of a communication system for performing message communication inquires of a server about the state of an interlocutor, the time of day observation observing a time zone in which the user is using the terminal itself. From the server, the process and the use time period information registration process of periodically registering the observed use time period information in the server providing the presence function and the use time period information of the interlocutor registered in the own terminal Inquiries for determining or changing the status inquiry interval of each interlocutor according to a predetermined conversion rule, by acquiring the utilization time zone information acquisition process and comparing the acquired utilization time zone information for each interlocutor with the current time. A presence method comprising an interval priority control process. 3. A presence method in which a terminal of a communication system for performing message communication inquires a server of a state of an interlocutor, and an average usage time for observing an average usage time in which the user uses the own terminal. From the server, an observation process and an average use time registration process of periodically registering the observed average use time information in a server providing a presence function, and an average use time information of interlocutors registered in the terminal Based on the acquired average usage time information acquisition process and the acquired average usage time information for each interlocutor, the inquiry interval priority control process for determining or changing the status inquiry interval of each interlocutor according to a predetermined conversion rule A presence method comprising: 4. A presence method in which a terminal of a communication system for performing message communication inquires a server of a state of an interlocutor, and an average offline time for observing an average offline time during which the user uses the own terminal. The observation process and the average offline time information registration process of periodically registering the observed average offline time information in the server providing the presence function, and the average offline time information of the interlocutors registered in the terminal are stored in the server. Query interval priority control for determining or changing the status inquiry interval of each interlocutor according to a predetermined conversion rule based on the average offline time information acquisition process acquired from A presence method comprising the steps of: 5. A presence method in which a user terminal of a communication system for performing message communication inquires of a server about a state of an interlocutor, the state change interval observing a state change interval during which the user changes the state while online. The observation process and the state change interval information registration process of periodically registering the observed state change interval information in a server providing a presence function, and the state change interval information of the interlocutor registered in the own terminal in the server. Inquiry interval priority control for determining or changing the state inquiry interval of each interlocutor according to a predetermined conversion rule based on the state change interval information acquisition process acquired from A presence method comprising the steps of: 6. Any one of claims 1 to 5
The presence method according to the paragraph (3), further comprising an average inquiry interval information acquisition step of acquiring average inquiry interval information, which is an average value of all interlocutors of an interval for inquiring a state of the server, from the server. In the control process, the query interval conversion table for assigning priority points to each interlocutor based on the observed value and obtaining the difference time from the average interrogation interval for each interlocutor according to the priority points is stored in the server. The presence method is characterized in that the inquiry interval for each interlocutor is adjusted by obtaining the difference time from the average inquiry interval according to the priority point by using the inquiry interval conversion table. 7. A presence method in which a terminal of a communication system for performing message communication inquires of a server about a state of an interlocutor, wherein the number of users connected to the own device in a server providing a presence function is calculated. A process of counting the number of connected users to be counted, a load setting process of converting the counted number of users into a load value according to a predetermined conversion rule, and a load value acquisition in which the user terminal acquires the load value of the set server. And an inquiry interval adjustment step of determining or changing an average inquiry interval of all the interlocutors or a state inquiry interval for each interlocutor according to a load value of the server according to a predetermined conversion rule. Presence method to do. 8. Any one of claims 1 to 7
A presence program for causing a computer to execute the presence method described in the section. 9. Any one of claims 1 to 7
A recording medium for a presence program, wherein a program for causing a computer to execute the presence method described in the item 1 is recorded.