JP2005301906A - Communication service contract plan selection system, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to easily select a contract plan which reduces a cost when utilizing a communication service. <P>SOLUTION: The information of charge plans and use menus of the communication service is stored in a use menu database 22. Information of contract conditions and a use history of the user is stored in a user information database 23. A data collection/analysis means 24 analyzes the use condition of the user on the basis of data extracted from the use menu database 22 and the user information database 23. A simulation means 25 performs cost comparison simulation on the basis of an analysis result of the data collection/analysis means 24 and information of use menus extracted from the use menu database and selects a contract plan most suitable for the user. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a communication service contract plan selection system, a communication service contract plan selection method, and a communication service contract plan selection program for selecting a contract plan that can reduce the cost when a user uses a communication service.

  In order to use a communication service such as a telephone service or an Internet connection service, a user contracts with a communication carrier such as a telecommunications carrier (hereinafter referred to as a communication carrier) or an Internet service provider (hereinafter referred to as a provider). FIG. 5 is a flowchart illustrating an example of a procedure flow when contracting or changing a contract with a communication carrier. The user selects an optimal contract plan in consideration of the usage conditions (usage time and usage menu) desired by the user (step S901). For example, the user specifies the rate plan in consideration of the usage time such as how many hours per month the user wants to use. In addition, the user specifies a use menu of a service to be used such as packet communication or voice communication. Then, the user selects a contract plan including the specified charge plan and usage menu, and contracts with the communication carrier, and starts using the communication service (steps S902 and S903). Also, the communication carrier creates and sends a bill based on the user's usage history, and collects a usage fee from the user (step S904).

  In addition, the user may change the contents of the contract if the desired use condition changes after the use of the communication service is started. In this case, the user analyzes the usage details of the invoice and compares the contract plan currently contracted with other contract plans provided by the communication carrier (steps S905 to S907). For example, the user considers whether or not there is a contract plan that can reduce costs more than the current contract plan. If the user determines that there is a contract plan (that is, a contract plan that can reduce costs) that is more optimal than the current contract plan as a result of the comparative study, the user performs a contract change procedure with the communication carrier ( Steps S908 and S909). If the user determines that the current contract plan is the optimum contract plan for himself / herself, the user continues using the current contract plan (steps S908 and S910).

  Patent Document 1 describes an optimal rate plan notification system that notifies subscribers of an optimal rate plan in real time. The optimal rate plan notification system described in Patent Document 1 calculates an accumulated fee based on the accumulated call time accumulated from a predetermined date, and calculates the estimated accumulated fee when using a rate plan other than the subscriber's contracted rate plan. Ask. Then, the optimum rate plan notification system identifies an optimum rate plan based on the accumulated fee and the estimated accumulated fee and notifies the communication terminal of the user.

  Patent Document 2 describes a mobile communication device capable of detecting an optimal rate plan and notifying a user. The mobile communication device described in Patent Document 2 calculates an average call charge per month. In addition, the mobile communication device obtains a converted value of the average call charge when a charge plan other than the contract charge plan is used. When the mobile communication device detects a price plan that is cheaper than the currently subscribed price plan, it notifies the user.

JP 2001-36673 A (paragraphs 0008-0011, FIG. 1) JP 2001-309089 A (paragraph 0006-0028, FIG. 1-3)

  When making a contract change with a telecommunications carrier according to the procedure flow shown in FIG. 5, the user analyzes the usage status of the communication service himself and selects the optimum contract plan. For this reason, the user has a lot of trouble and burden when selecting a contract plan.

  In addition, according to the optimal rate plan notification system described in Patent Document 1 and the mobile communication device described in Patent Document 2, a rate plan whose rate is lower than the currently subscribed rate plan is automatically set. Search and notify users. However, when a communication service contract is changed, expenses such as a commission and a construction fee associated with the change are incurred. In addition, when changing a communication service contract, multiple services such as packet communication and voice communication may be changed at the same time. Therefore, it is not possible to easily select a contract plan that can reduce the cost when a user uses a communication service only by automatically searching for a charge plan.

  Therefore, the present invention provides a communication service contract plan selection system, a communication service contract plan selection method, and a communication service contract plan selection that can easily select a contract plan that can reduce the cost when the user uses the communication service. The purpose is to provide a program.

  A communication service contract plan selection system according to the present invention is a communication service contract plan selection system for selecting a contract plan that can reduce the cost when a user uses a communication service, and analyzes the usage status of the user's communication service. Then, an analysis means for obtaining the current contract plan cost (accumulated usage fee of the current contract plan) that is a cost when the user uses the contract plan currently contracted, and contract with a contract plan other than the current contract plan The contract change cost, which is the cost for changing the contract, is calculated by comparing the change cost calculation means obtained for each contract plan with the current contract plan cost obtained by the analysis means and the contract change cost obtained by the change cost calculation means. Comparison judgment means for judging whether there is a contract plan whose change cost is smaller than the current contract plan cost, and comparison judgment means There contract changes cost if it is determined that the current service plan costs less service plan, contract changes cost is characterized in that a plan selecting means for selecting a current service plan costs less service plan. Note that the analysis of the usage status means, for example, obtaining an accumulated usage time or usage fee based on the usage history of the communication service.

  In addition, the communication service contract plan selection system includes plan storage means for storing a plurality of charge plan information in advance, and the change cost calculation means obtains the contract change cost using the charge plan information stored in the plan storage means. It may be.

  The plan storage means stores a contract change cost indicating a cost associated with the contract change, and the change cost calculation means obtains the contract change cost using the charge plan and the contract change cost stored in the plan storage means. May be. According to such a configuration, it is possible to compare the current contract plan cost with the contract change cost in consideration of the contract change cost such as a commission accompanying the contract change and a construction fee.

  In addition, the communication service contract plan selection system includes a history information storage unit that accumulates usage history information (usage record information) indicating a history of use of the communication service by the user, and the analysis unit stores the usage information stored in the history information storage unit. Based on the history information, as the current contract plan cost, an accumulated usage fee that is an accumulated value of the usage fee for the user using the communication service during a predetermined period may be obtained.

  Further, the communication service contract plan selection system may include a selection result storage unit that stores information on the contract plan selected by the plan selection unit for a predetermined period. According to such a configuration, the telecommunications carrier can provide the user with information on an optimal contract plan using a selection result stored for a predetermined period.

  The communication service contract plan selection method according to the present invention is a communication service contract plan selection method for selecting a contract plan that can reduce the cost when the user uses the communication service, and analyzes the usage status of the user's communication service. Then, the step of obtaining the current contract plan cost which is the cost when the user uses the contract plan currently contracted, and the contract change cost which is the cost when changing the contract to a contract plan other than the current contract plan are obtained. The step of determining for each contract plan, the step of comparing the determined current contract plan cost with the contract change cost to determine whether there is a contract plan whose contract change cost is smaller than the current contract plan cost, and contract change If it is determined that there is a contract plan whose cost is lower than the current contract plan cost, the contract modification cost is Characterized in that it comprises the steps of selecting a Nkosuto smaller service plan.

  A communication service contract plan selection program according to the present invention is a communication service contract plan selection program for selecting a contract plan that can reduce a cost when a user uses a communication service. The process of obtaining the current contract plan cost, which is the cost when using the contract plan that the user currently contracts, and the cost when changing the contract to a contract plan other than the current contract plan A process for obtaining a certain contract modification cost for each contract plan is compared with the obtained current contract plan cost and the contract modification cost to determine whether there is a contract plan whose contract modification cost is smaller than the current contract plan cost. If it is determined that there is a contract plan whose processing and contract modification cost is lower than the current contract plan cost, Changes costs, characterized in that to execute a process of selecting a current service plan costs less service plan. .

  According to the present invention, the current contract plan cost is compared with the contract change cost, and the optimum contract plan for the user is automatically selected. Therefore, it is possible to easily select a contract plan that can reduce the cost when the user uses the communication service.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an example of an environment to which a communication service contract plan selection system according to the present invention is applied. As shown in FIG. 1, the environment to which the communication service contract plan selection system is applied includes a user terminal 11 used by the user 10, a communication carrier 20, a provider 30, and a content provider 40.

  The user terminal 11 is an information processing terminal such as a personal computer or a telephone. The user terminal 11 may be a mobile terminal such as a mobile phone. For example, the user terminal 11 which is a telephone is used for receiving a telephone service provided by the communication carrier 20. Further, the user terminal 11 which is a personal computer is used for receiving provision of Web contents via the Internet 100.

  In FIG. 1, what is shown as the content provider 40 is specifically realized by a server or a storage device operated by the content provider 40 that provides Web content via the Internet 100. In response to a request from the user terminal 11, the content provider 40 transmits Web content to the user terminal 11 via the Internet 100, the provider 30, and the communication carrier 20.

  In FIG. 1, what is shown as the communication carrier 20 is specifically realized by a line connection device operated by the communication carrier 20. In response to a connection request from the user terminal 11, the communication carrier 20 connects the user terminal 11 to a call destination telephone line via a telephone network (not shown). Further, the communication carrier 20 connects the user terminal 11 to the provider 30 in response to a connection request from the user terminal 11.

  Further, the communication carrier 20 may be a business operator who connects a mobile phone to the line. In this case, the communication carrier 20 performs line connection in response to a connection request via the base station 50 from the user terminal 11 which is a mobile phone.

  In FIG. 1, what is shown as the provider 30 is specifically realized by a server, a storage device, a router, or the like operated by the provider 30. The provider 30 connects the user terminal 11 to the Internet 100 in response to a request from the user terminal 11 via the communication carrier 20.

  In the present embodiment, the communication carrier 20 and the provider 30 include a management server 21 for managing the usage status of the telephone service and the Internet connection service. In the present embodiment, the communication carrier 20 and the provider 30 are collectively referred to as a communication carrier. In the present embodiment, the telephone service and the Internet connection service are collectively referred to as a communication service.

  FIG. 2 is a block diagram illustrating an example of the configuration of the management server 21. As shown in FIG. 2, the management server 21 includes a user information database 23, a usage menu database 22, a data collection / analysis unit 24, a simulation unit 25, and a simulation result database 26.

  Specifically, the use menu database 22 is realized by a database device of the management server 21. The use menu database 22 stores in advance a plurality of information on communication service use menus. In the present embodiment, the use menu database 22 stores information on use menus of various services (for example, packet communication, voice communication, and e-mail service) provided by the communication carrier.

  The use menu database 22 stores a communication service charge plan in advance. For example, the usage menu database 22 stores a basic fee and a communication usage fee per predetermined time (for example, 10 seconds). In addition, the use menu database 22 stores in advance a fee and a construction fee (hereinafter referred to as a contract change fee) that are incurred when a contract is changed.

  Specifically, the user information database 23 is realized by a database device of the management server 21. The user information database 23 accumulates contract condition information (hereinafter referred to as contract condition information) of each user 10 and use result information (hereinafter referred to as use result information) of each user 10. For example, the user information database 23 stores, as the contract condition information, information on a contract plan (including a charge plan and a use menu) with which each user 10 is contracted. In addition, the user information database 23 stores a use history (a use date and time and a use time when the user 10 used the communication service) as use result information.

  Specifically, the data collection / analysis unit 24 is realized by the CPU of the management server 21 that operates according to a program. The data collection / analysis unit 24 has a function of collecting information on contract conditions and usage results of the user 10 and analyzing the usage status of the communication service of the user 10. In the present embodiment, the data collection / analysis unit 24 extracts the contract condition information and the usage record information from the user information database 23 and analyzes the usage status of the user 10.

  Specifically, the simulation unit 25 is realized by the CPU of the management server 21 that operates according to a program. The simulation unit 25 has a function of performing a comparison simulation between the case where the current contract plan is used and the case where the contract is changed to another contract plan, and searching for a contract plan which is optimal for the use conditions of the user 10. In the present embodiment, the simulation means 25 compares the cost when the current contract plan is used with the cost when the contract is changed to another contract plan, and determines the contract plan that minimizes the cost as the optimal contract plan. Select as. The simulation unit 25 has a function of storing the simulation result in the simulation result database 26.

  Specifically, the simulation result database 26 is realized by a database device of the management server 21. The simulation result database 26 stores the simulation result obtained by the simulation unit 25 for a predetermined period.

  In the present embodiment, the analysis means is realized by the data collection / analysis means 24. The change cost calculation unit, the comparison determination unit, and the plan selection unit are realized by the simulation unit 25. The history information storage means is realized by the user information database 23. The plan storage means is realized by the use menu database 22. The selection result storage means is realized by the simulation result database 26.

  In the present embodiment, the storage device (not shown) of the management server 21 stores various programs for executing processing for searching and selecting a communication service contract plan. For example, the storage device of the management server 21 analyzes the usage status of the user's communication service in the computer, and obtains the current contract plan cost that is the cost when the contract plan that the user currently contracts is used. The contract change cost, which is the cost for changing the contract to a contract plan other than the current contract plan, for each contract plan is compared with the calculated current contract plan cost and the contract change cost. If it is determined that there is a contract plan whose contract modification cost is smaller than the current contract plan cost, and the contract modification cost is smaller than the current contract plan cost A communication service contract plan selection program for executing a process for selecting a contract plan is stored.

  FIG. 3 is a flowchart showing an example of a flow in the case where a communication service is contracted or changed with a communication carrier using the communication service contract plan selection system.

  First, a flow in which a user first contracts a communication service with a communication carrier will be described. The user 10 considers the usage conditions desired by him / her and selects the optimum contract plan for himself / her and makes a contract with the communication carrier (steps S101 and S102). Then, the user 10 starts using the communication service (step S103).

  For example, when using the telephone service, the user 10 concludes a line use contract by selecting a communication carrier 20, a charge plan, and a use menu as a contract partner. Also, when using the Internet connection service, the user selects the contracted provider 30, the charge plan, and the usage menu and concludes an Internet usage contract. In this case, the user 10 himself / herself investigates the usage time per month, what type of usage menu is available, and how much initial costs such as construction fees are incurred, and selects the contractor, rate plan, and usage menu. To do.

  Further, the telecommunications carrier creates and sends a bill based on the user's usage history and collects a usage fee from the user (step S104).

  Next, a flow for changing a contract after starting to use a communication service will be described. The telecommunications carrier searches for and provides a contract plan optimum for the user 10 (step S105). In the present embodiment, the management server 21 executes a process of searching for and selecting a contract plan that is optimal for the user 10 for each predetermined period. Then, the telecommunications carrier provides the user 10 with information on the optimum contract plan based on the search result. Hereinafter, the optimum contract plan searched by the management server 21 is also referred to as an optimum contract plan.

  FIG. 4 is a flowchart showing an example of the optimum contract plan search process. The data collection / analysis means 24 of the management server 21 extracts data from the use menu database 22 and the user information database 23 at a predetermined timing, and analyzes the use situation (step S21). For example, the data collection / analysis unit 24 extracts data from the use menu database 22 and the user information database 23 and executes processing at a predetermined date and time once a month.

  In step S 21, the data collection / analysis unit 24 extracts contract condition information and usage record information from the user information database 23. Further, the data collection / analysis unit 24 identifies the current contract plan of the user 10 based on the extracted contract condition information, and obtains information on the charge plan and use menu corresponding to the specified contract plan from the use menu database 22. Extract. When the current contract plan includes a plurality of usage menus (for example, packet communication and voice communication), the data collection / analysis unit 24 extracts a charge plan corresponding to each usage menu.

  The data collection / analysis means 24 analyzes the usage status of the user based on the extracted usage record information, price plan, and usage menu information. In the present embodiment, the data collection / analysis unit 24 uses the accumulated usage time (hereinafter, accumulated usage time) when the user 10 has used the communication service within a predetermined period (for example, for one month) as the usage status analysis result. Or an accumulated usage fee (hereinafter referred to as an accumulated usage fee). For example, the data collection / analysis means 24 obtains the accumulated usage time and the accumulated usage fee based on the usage date and time and usage time included in the usage record information and the basic fee and communication usage fee included in the fee plan. In this case, when a plurality of usage menus are included, the data collection / analysis unit 24 obtains an integrated usage time and an integrated usage fee for each usage menu (packet communication or voice communication).

  Further, the data collection / analysis unit 24 may obtain an accumulated usage time or an accumulated usage fee for every predetermined period (for example, every month). For example, when analyzing the usage situation for the past year, the data collection / analysis means 24 may obtain the accumulated usage time and the accumulated usage fee for the past 12 months for each month.

  In addition, the simulation unit 25 extracts information on all rate plans and usage menus other than the rate plan and usage menu corresponding to the current contract plan from the user information database 23. Then, the simulation unit 25 uses the current contract plan and the case where the contract is changed to another contract plan based on the extracted charge plan and usage menu information and the analysis result of the data collection / analysis unit 24. A comparative simulation is performed (step S22). In the present embodiment, in step S22, the simulation means 25 obtains a cost for changing the contract to a contract plan other than the current contract plan (hereinafter referred to as contract change cost).

  For example, the simulation unit 25 converts the accumulated usage fee of the current contract plan into an accumulated value of the usage fee when using a rate plan of another contract plan based on the fee plan stored in the usage menu database 22. To do. Hereinafter, the converted value of the integrated usage fee obtained by the simulation means 25 is referred to as an integrated usage fee converted value. For example, the simulation means 25 converts the accumulated usage fee into an accumulated usage fee conversion value using the basic fee or communication usage fee of the fee plan other than the current contract plan and the accumulated usage time.

  Further, the simulation means 25 extracts the contract change cost from the usage menu database 22 and adds the extracted contract change cost to the integrated usage charge conversion value to obtain the contract change cost. In addition, when the integrated usage fee converted value for each predetermined period (for example, every month) is obtained, the simulation means 25 adds the value assigned to the contract modification fee for each predetermined period to the integrated usage fee converted value. May be. For example, the case where the contract change cost is 3000 yen including the fee and the construction fee will be described. In this case, for example, the simulation unit 25 obtains a value of 250 yen obtained by dividing the contract change cost of 3000 yen by 12. And the simulation means 25 calculates | requires the value which added 250 yen to the integrated charge conversion value as contract change cost.

  When the current contract plan is used and another contract plan is used in comparison with the cost for the past month, the contract change cost (eg, 3000 yen) is added, so the current contract plan If you use a contract plan other than, it will be more expensive. For example, by adding the value obtained by dividing the contract change fee of 3000 yen by 12 to the accumulated usage charge conversion value, when using the current contract plan when compared throughout the year and when changing to another contract plan You can compare costs.

  Further, the simulation means 25 compares the accumulated usage fee of the current contract plan with the contract change cost of another contract plan, and determines whether there is a contract plan whose contract change cost is smaller than the accumulated usage fee. When the simulation unit 25 determines that there is a contract plan in which the contract change cost is smaller than the accumulated usage fee, the simulation unit 25 selects a contract plan that minimizes the contract change cost as the optimum contract plan. In addition, the simulation unit 25 extracts information on the price plan and usage menu corresponding to the selected optimum contract plan from the usage menu database 22, and generates a simulation result including the extracted information on the price plan and usage menu. In addition, when the simulation unit 25 determines that there is no contract plan whose contract change cost is smaller than the accumulated usage fee, the simulation unit 25 generates a simulation result including information indicating that the current contract plan is the optimum contract plan.

  Moreover, the simulation means 25 memorize | stores the produced | generated simulation result in the simulation result database 26 (step S23). The simulation result database 26 stores simulation results for a predetermined period.

  As described above, by executing the processing from step S21 to step S23, the optimum contract plan is automatically searched and stored in the simulation result database 26 every predetermined period.

  Based on the simulation result stored in the simulation result database 26 of the management server 21, the communication carrier provides the user 10 with information on the optimum contract plan (step S24). For example, when sending a bill, the telecommunications carrier creates a bill in which “optimum” billing plan, usage menu, fee for changing contract, and construction fee are described as “notice” and sends it to the user 10.

  If the user 10 confirms the content of the information of the optimum contract plan described in the sent invoice and determines that it is better to change the contract, the user 10 performs the contract change procedure with the communication carrier (steps S106 and S107). . Then, information such as the contents, schedule, cost details, and change time of the changed work is sent from the communication carrier to the user 10 and the contract is changed (step S108). If the user 10 determines that it is better to continue using the current contract plan, the user 10 does not change the contract (steps S106 and S109).

  Note that the telecommunications carrier may provide the user 10 with information on the optimum contract plan based on the simulation result stored in the simulation result database 26 when the user 10 makes an inquiry.

  As described above, according to the present embodiment, the telecommunications carrier management server 21 automatically searches for and selects a contract plan that is optimal for the user every predetermined period. In addition, the management server 21 selects and calculates an optimum contract plan by comparing and simulating the cost considering the cost associated with the contract change. In addition, the management server 21 compares and simulates costs considering a case where there are a plurality of service menus, and selects an optimum contract plan. Therefore, it is possible to easily select a contract plan that can reduce the cost when the user uses the communication service. Further, it is possible to reduce a user's trouble and burden when selecting a contract plan for a communication service, and it is possible to improve user convenience.

  Further, since the information on the optimum contract plan is provided, the user can easily change the contract with the communication carrier 20 or the provider 30 and use the communication service with the optimum contract plan for himself / herself. Also, the communication carrier 20 and the provider 30 can acquire the reliability from the user by providing the information of the optimum contract plan, and can enclose the user.

  The present invention can be applied to a use in which a contract plan for a communication service such as a telephone service or an Internet connection service is searched and provided to a user.

It is a block diagram which shows the example of the environment to which the communication service contract plan selection system by this invention is applied. 3 is a block diagram illustrating an example of a configuration of a management server 21. FIG. It is a flowchart which shows an example of the flow in the case of contracting a communication service with a communication carrier using a communication service contract plan selection system, or changing a contract. It is a flowchart which shows an example of the search process of an optimal contract plan. It is a flowchart which shows the example of the procedure flow in the case of contracting a communication service and the contract change with the conventional communication carrier.

Explanation of symbols

10 user 11 user terminal 20 communication carrier 21 management server 22 use menu database 23 user information database 24 data collection / analysis means 25 simulation means 26 simulation result database 30 internet service provider 40 content provider 50 base station 100 internet

Claims (7)

A communication service contract plan selection system for selecting a contract plan that can reduce a cost when a user uses a communication service,
An analysis means for analyzing the usage status of the user's communication service and obtaining a current contract plan cost which is a cost when the contract plan that the user is currently contracting is used;
A change cost calculating means for obtaining a contract change cost for each contract plan, which is a cost for changing the contract to a contract plan other than the current contract plan;
Comparing the current contract plan cost obtained by the analyzing means with the contract change cost obtained by the change cost calculating means to determine whether there is a contract plan whose contract change cost is smaller than the current contract plan cost Means,
And a plan selection means for selecting a contract plan whose contract change cost is lower than the current contract plan cost when the comparison determination means determines that there is a contract plan whose contract change cost is lower than the current contract plan cost. Communication service contract plan selection system. A plan storage means for storing a plurality of rate plan information in advance,
The communication service contract plan selection system according to claim 1, wherein the change cost calculation means obtains the contract change cost using information on a charge plan stored in the plan storage means. The plan storage means stores the contract change cost indicating the cost associated with the contract change,
The communication service contract plan selection system according to claim 2, wherein the change cost calculation means obtains the contract change cost using the charge plan and contract change cost stored in the plan storage means. Comprising history information storage means for accumulating usage history information indicating a history of a user using a communication service;
The analyzing means is an accumulated usage fee that is an accumulated value of a usage fee that the user has used the communication service for a predetermined period as the current contract plan cost based on the usage history information stored in the history information storage means. The communication service contract plan selection system according to any one of claims 1 to 3.   The communication service contract plan selection system according to any one of claims 1 to 4, further comprising selection result storage means for storing information on the contract plan selected by the plan selection means for a predetermined period. . A communication service contract plan selection method for selecting a contract plan that can reduce a cost when a user uses a communication service,
Analyzing the usage status of the user's communication service and obtaining a current contract plan cost, which is a cost when using the contract plan to which the user is currently contracted;
Obtaining a contract change cost for each contract plan, which is a cost for changing the contract to a contract plan other than the current contract plan,
Comparing the determined current contract plan cost with the contract change cost to determine whether there is a contract plan whose contract change cost is smaller than the current contract plan cost; and
Selecting a contract plan whose contract modification cost is smaller than the current contract plan cost when it is determined that there is a contract plan whose contract modification cost is smaller than the current contract plan cost. Method. A communication service contract plan selection program for selecting a contract plan that can reduce a cost when a user uses a communication service,
On the computer,
Analyzing the usage status of the user's communication service and obtaining the current contract plan cost, which is the cost when using the contract plan that the user is currently contracted with,
A process for obtaining a contract change cost, which is a cost for changing a contract to a contract plan other than the current contract plan, for each contract plan,
A process of comparing the obtained current contract plan cost with the contract change cost to determine whether or not there is a contract plan whose contract change cost is smaller than the current contract plan cost;
A communication service contract plan selection program for executing a process of selecting a contract plan whose contract change cost is smaller than the current contract plan cost when it is determined that there is a contract plan whose contract change cost is smaller than the current contract plan cost.

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