JP2001319075A - Information service method, system, information server, and recording medium with recorded program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information service system which can easily obtain recipe information and purchase plan information on a desired article through a communication network 4. SOLUTION: Article information received from a store terminal 1 is registered in an article database by an information server 3. Recipe condition information having conditions of the desired article and purchase plan condition information on the price, etc., of the article needed to generate the desired article are sent from the user terminal 2 to the information server 3. The information server 3 selects recipe information completing the recipe condition information from a recipe database, computes parameters regarding articles entered into the recipe information from data of the article database, generates purchase plan information on the respective articles so that the purchase plan condition information is completed, and sends the selected recipe information and generated purchase plan information from the information server 3 to the user terminal 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an information service system for providing desired information to a user, and more particularly to an information service system for providing product information via a communication network.

[0002]

2. Description of the Related Art A desired dish can be obtained by processing a plurality of ingredients by an appropriate cooking method.
It is necessary to obtain (purchase) necessary materials in advance. And what described the ingredients of the dish and the cooking method is generally called a recipe.

[0003] In addition to cooking, in general, a plurality of products may be combined and processed to obtain a desired product. For this purpose, it is necessary to purchase necessary products in advance. Here, information including a plurality of products to be combined to obtain a desired product and a processing method for obtaining a desired product from the plurality of products is widely referred to as recipe information. Information including information on which merchandise is purchased at which store is referred to as purchase plan information.

In order to obtain recipe information and purchase plan information,
Various information services provided on the Internet can be used. Many stores in various industries have set up homepages that provide information on the stores and the products they handle. Also, if a third party
There is also a homepage that introduces information about these shops and the like. The information provided there may include information on recipe information. Users can browse the homepages obtained by the search service based on keywords, the homepages whose addresses have been obtained in advance, the homepages found by links from those homepages, and use the services provided there. To obtain information.

[0005] As a conventional method of obtaining recipe information and purchase plan information using such an information service, as much information as possible is individually collected by using information services provided by respective stores and the like. There is a method in which the user separately creates recipe information and purchase plan information based on the collected information.

[0006]

In the conventional method, sufficient information cannot be obtained in many cases, and much effort is often required to obtain sufficient information. In other words, the conventional method is not always satisfactory in terms of the amount of information obtained and the efficiency.

[0007] An object of the present invention is to provide an information service system that can easily obtain recipe information and purchase plan information of a desired article via a communication network such as the Internet.

[0008]

In order to achieve the above object, an information service method according to the present invention is provided for providing information for obtaining a desired article from an information server to a user terminal via a communication network. An information service method, comprising: a recipe database in which an information server records recipe information including data of commodities necessary for making the commodities for each article; a shop name, a merchandise name to be sold at the shop; A product database in which product information in which product price data are associated with each other is registered in advance, and an information server is accessed from a store terminal of a store that sells the product, and the product information is transmitted. Registering the received product information in the product database, accessing the information server from the user terminal, and describing the conditions of the product desired by the user; A step of transmitting recipe condition information; a step of transmitting purchase plan condition information including a total condition of prices of commodities necessary for making a desired article from the user terminal to the information server; Selecting the recipe information that satisfies the recipe condition information, and calculating parameters including the total price of the products described in the selected recipe information from the data of the product database, and the parameters satisfy the purchase plan condition information. To generate purchase plan information describing a store where each product should be purchased, and transmitting the selected recipe information and the generated purchase plan information from the information server to the user terminal. .

Therefore, recipe information satisfying a desired recipe condition is selected from the recipe database, and a purchase plan of a recipe in which parameters calculated from data in the product database satisfy purchase plan condition information is automatically generated.

[0010] Another information service method of the present invention is an information service method for providing information for obtaining a desired article from an information server to a user terminal via a communication network. A recipe database in which recipe information including data of commodities necessary for making the article is recorded, and merchandise information in which store names, merchandise names of merchandise sold in the merchandise, and price data of the merchandise are associated with each other. A product database in which is registered in advance, a step of accessing the information server from a store terminal of a store selling the product and transmitting the product information, and a step of registering the product information received by the information server in the product database. , The user accesses the information server from the terminal, and the recipe condition, which is the condition of the article desired by the user, and the product necessary for making the article Transmitting a condition information file in which condition information including purchase plan conditions including a total price condition is recorded; and selecting and selecting, from the recipe database, recipe information satisfying a recipe condition of the condition information file in the information server. Parameters including the total of the prices of the products described in the received recipe information are calculated from the data of the product database, and the shops where each product should be purchased are described so that the parameters satisfy the purchase planning conditions in the condition information file. Generating the purchased purchase plan information, and transmitting the selected recipe information and the generated purchase plan information from the information server to the user terminal.

An information service system according to the present invention is an information service system for providing information for obtaining a desired article via a communication network, and includes a store name, a product name of a product sold at the store, and a product name of the product. A merchant terminal that transmits product information that associates price data with each other via a communication network, recipe condition information that describes a condition of a product desired by a user via the communication network, and a desired product. Purchase plan condition information including the condition of the total price of the product necessary for the purchase, and the recipe information including the data of the product necessary for making a predetermined product and the purchase plan information describing the store where each product should be purchased Has a user terminal that receives and displays a screen, a recipe database that records a plurality of recipe information, and a product database in which product information is registered. Register the product information received from the product database in the product database, select recipe information from the recipe database that satisfies the recipe condition information received from the user terminal, and set parameters including the total price of the product described in the selected recipe information. An information server that calculates purchase data from data in a product database, generates purchase plan information such that the parameter satisfies purchase plan condition information received from the user terminal, and transmits the selected recipe information and the generated purchase plan information to the user terminal. have.

Another information service system according to the present invention is an information service system for providing information for obtaining a desired article via a communication network, and includes a store name, a product name of a product to be sold at the store, A merchant terminal that transmits merchandise information corresponding to merchandise price data to each other via a communication network, a recipe condition in which a condition of an article desired by a user is described, and a desired article are created via the communication network. A condition information file that records the purchase plan conditions including the total price conditions of the products necessary for the purchase should be sent, and the recipe information including the data of the products necessary for making the predetermined product and each product should be purchased A user terminal that receives purchase plan information describing a store and displays it on a screen, a recipe database in which a plurality of recipe information are recorded, and a product database in which product information is registered. Product information received from the store terminal in the product database, recipe information satisfying the recipe conditions recorded in the condition information file received from the user terminal is selected from the recipe database, and the selected recipe information Is calculated from the data in the product database, and purchase plan information is generated such that the parameter satisfies the purchase plan conditions recorded in the condition information file received from the user terminal. An information service system having an information server for transmitting selected recipe information and generated purchase plan information to a user terminal.

An information server according to the present invention is an information server for providing information for obtaining a desired article to a user terminal via a communication network, and includes a plurality of items including data of commodities necessary for making a predetermined article. A recipe database in which the recipe information is recorded, a merchandise database for registering merchandise information in which the name of the merchandise, the merchandise name of the merchandise sold in the merchandise, and the price data of the merchandise are associated with each other; Register the product information received from the terminal in the product database, and include the recipe condition information in which the condition of the product desired by the user is described from the user terminal and the total condition of the price of the product necessary to make the desired product. Receiving the purchase plan condition information and selecting the recipe information satisfying the recipe condition information from the recipe database, and selecting the recipe information described in the selected recipe information. A parameter including the total price of the product is calculated from the data of the product database, and purchase plan information describing a store to purchase each product is generated so that the parameter satisfies the purchase plan condition information. It has an information processing device for transmitting information and the generated purchase plan information to the user terminal.

[0014] Another information server of the present invention is an information server for providing information for obtaining a desired article to a user terminal via a communication network, and stores data of commodities necessary for making a predetermined article. A recipe database that records a plurality of recipe information, including a store name, a product database for registering product information in which data of a product name and a price of the product sold at the store correspond to each other, and a product sales The product information received from the terminal of the store to be purchased is registered in the product database, and the purchase including the recipe condition, which is the condition of the product desired by the user, and the total condition of the price of the product necessary to make the desired product is performed from the user terminal. Receiving the condition information file that records the plan conditions, selects the recipe information that satisfies the recipe conditions from the recipe database, and selects the selected recipe information A parameter including the total price of the described product is calculated from the data of the product database, and purchase plan information describing a store to purchase each product is generated and selected so that the parameter satisfies the purchase plan condition. And an information processing device for transmitting the generated recipe information and the generated purchase plan information to the user terminal.

The recording medium of the present invention is a program for providing information for obtaining a desired article to a user terminal via a communication network, and includes a store name, a product name of a product to be sold at the store, and a program name. A process of receiving merchandise information in which merchandise price data is associated with each other from a store terminal and registering the merchandise information in a merchandise database. From the process of receiving purchase plan condition information including the condition of the total price of the product necessary for making, and a recipe database that records a plurality of recipe information including the data of the product necessary for making a predetermined product, A process of selecting recipe information that satisfies the recipe condition information, and a parameter including a total price of the product described in the selected recipe information in the product database A process of calculating from the data, a process of generating purchase plan information describing a store from which each product should be purchased such that the parameter satisfies the purchase plan condition information, and a process of combining the selected recipe information and the generated purchase plan information. An information service program for causing the information processing device to execute processing to be transmitted to the user terminal is recorded.

Another recording medium of the present invention is a program for providing information for obtaining a desired article to a user terminal via a communication network, and includes a store name and a product name of a product to be sold at the store. Receiving from the terminal of the store the merchandise information that associates the price data of the merchandise with the merchandise terminal, and registering the merchandise information in the merchandise database; A process of receiving a condition information file in which purchase plan conditions including a total condition of the price of a product necessary for recording are recorded, and a plurality of recipe information including data of a product necessary for making a predetermined product are recorded. From the recipe database
A process of selecting recipe information that satisfies the recipe condition, a process of calculating a parameter including the total price of the product described in the selected recipe information from data in the product database, and the parameter satisfying the purchase plan condition An information service for causing an information processing apparatus to execute a process of generating purchase plan information describing a store from which each product is to be purchased and a process of transmitting selected recipe information and the generated purchase plan information to a user terminal. Recording the program.

[0017]

Embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, an information service system according to one embodiment of the present invention has a store terminal 1, a user terminal 2, and an information server 3, which transmit and receive data via a communication network 4 such as the Internet. Interconnected as possible.

The store terminal 1 is an information processing device provided corresponding to a store that sells products, and is composed of a workstation server and the like. The store terminal 1 transmits to the information server 3 via the communication network 4 in order to register the store location information and the information such as the merchandise being sold and the price thereof in the information server 3.

The user terminal 2 is an information processing device such as a personal computer. The user can connect the user terminal 2 to the information server 3 via the communication network 4 and use the information service provided by the information server 3. At this time, the user terminal 2 transmits to the information server 3 via the communication network 4 the location information of the user, the condition information to be satisfied by the recipe information of the article desired by the user, and the purchase plan information. And various menu screens, recipe information and purchase plan information transmitted from the server. Examples of condition information to be satisfied by the recipe information and the purchase plan information include a desired article, an upper limit of a total purchase price, and an upper limit of a travel time required for purchasing necessary products.

The information server 3 is an information processing device such as a workstation server. As shown in FIG. 2, the information server 3 stores a recipe database 31 in which a plurality of pieces of recipe information describing what products are combined and how the desired products can be produced can be created for each product.
And a merchandise database 32 in which the name of the store transmitted from the store terminal 1, the location of the store, the products sold at the store, the price thereof, and the like are registered, and the time required for movement between the store and the location of the user. It has a distance database 33 in which distance information for calculating time is registered.

Taking a dish as an example, as shown in FIG. 3, as an example of the recipe database 31, a recipe name indicating the name of the dish, classification of Japanese food, French food, Chinese food, etc. It is conceivable that a plurality of cards are registered which record the characteristics of the dish, the ingredients required for making the dish, and the cooking method.

The information server 3 registers the data of the location of the store, the product and its price received from the store terminal 1 in the recipe database 31. Further, the information server 3 receives the location information of the user, the desired article, the condition information which is the data of the requirements to be satisfied by the recipe information and the purchase plan information transmitted from the user terminal 2, and uses the data of each database. Then, recipe information and purchase plan information satisfying the condition information are obtained and transmitted to the user terminal 2.

Referring to FIG. 4, the operation of registering data in the product database 32 of the information service system according to the present embodiment is as follows.
Access the information server 3 via the communication network 4. When the store terminal 1 and the information server 3 are connected,
In step 101, a request for transmitting a file is transmitted from the information server 3 to the store terminal 1. Therefore, step 102
Then, a file containing data of the name of the store, the location of the store, the product sold at the store, and the price of the product is transmitted from the store terminal 1 to the information server 3. The transmitted file is registered in the product database 32 by the information server 3 in step 103. When the registration of the file is completed, a notification of the completion of the registration is sent to the information
Is transmitted to the store terminal 1.

Referring to FIG. 5, as an operation for providing the user terminal 2 having accessed the information server 3 of the information service system of the present embodiment with the recipe information and the purchase plan information of a desired article, first, step 200 is performed. Then, the information server 3 is accessed from the user terminal 2. When the user terminal 2 and the information server 3 are connected, step 201
Then, a request for transmission of condition information on the recipe is transmitted from the information server 3 to the user terminal 2. Then, in step 202, a recipe condition input screen for inputting condition information relating to the recipe on the user terminal 2 is displayed.

Taking a dish as an example, a desired dish name (recipe name) is displayed on the recipe condition input screen as shown in FIG.
, And a box for entering a food classification, such as Japanese, French, Chinese,
A box for inputting desired flavors such as spicy and sweet and other features of the dish is displayed, and it is conceivable that conditions can be input as necessary.

When the user writes recipe condition information in the box displayed on the user terminal 2 and executes transmission, the recipe condition information is transmitted from the user terminal 2 to the information server 3 in step 203.

Next, in step 204, a request for transmitting condition information relating to the purchase plan is transmitted from the information server 3 to the user terminal 2. Then, in step 205, a purchase plan condition input screen for inputting condition information regarding the purchase plan on the user terminal 2 is displayed.

In the cooking example, as shown in FIG. 7, the purchase plan condition input screen includes a box for inputting the location of the user, a box for inputting the purchase budget,
A box for entering the upper limit of the time required to purchase all the ingredients and a box for entering the upper limit of the number of stores to visit for the purchase of the ingredients are displayed, and if necessary, It is conceivable that conditions can be input.

When the user writes the purchase plan condition information in the box displayed on the user terminal 2 and executes transmission, the user terminal 2 sends the information server 3
The purchase plan condition information is transmitted.

In step 207, the information server 3 that has received the recipe condition information and the purchase plan condition information selects recipe information that satisfies the recipe condition information from the recipe database 31, and proceeds to step 208 for each selected recipe information. , Product database 32 and distance database 3
From the data of No. 3, parameters such as the total purchase amount, the time required for purchase, and the number of visiting stores are calculated. Then, in Step 209, purchase plan information that satisfies the purchase plan condition information is generated based on the calculated parameters, and Step 210 is executed.
Then, the selected recipe information and the purchase plan information generated for the recipe information are transmitted from the information server 3 to the user terminal 2.

In the user terminal 2, in step 211, the received recipe information and purchase plan information are displayed on a screen. As an example of a purchase plan display screen, as shown in FIG. 8, which merchandise should be purchased at which store is displayed.

In the information service system of the present embodiment,
A recipe that satisfies the desired recipe condition information is selected from the recipe database 31, and a purchase plan of the recipe that automatically satisfies the purchase plan condition information with parameters calculated from the data of the product database 32 and the distance database 33 is automatically generated. Therefore, the user can easily obtain a desired recipe and a purchase plan of the material simply by inputting and executing desired conditions. In addition, the purchase activity of the product is thereby efficiently performed. Further, each store does not need to separately advertise a product.

Referring to FIG. 9, an information server 5 according to another embodiment of the present invention is an information processing apparatus having a processor 51, a memory 52, and a line interface 53, and is connected to the communication network 4 by a line interface 53. ing. The recipe database 31, the product database 32, and the distance database 33 are configured in the storage device 6. The recording medium 7 is a recording medium such as a floppy (registered trademark) disk, a CD-ROM, or a magneto-optical disk, and stores a program having the processing of the information server 3 shown in FIGS.

Then, the processor 51 reads the program from the recording medium 7, stores it in the memory 52, and executes it.

An information service system according to still another embodiment of the present invention operates in such a manner as to provide the user terminal 2 having accessed the information server 3 with recipe information and purchase plan information of a desired article as shown in FIG. Is different.

Referring to FIG. 10, the operation of the information service system of the present embodiment when providing the recipe information and the purchase plan information of the desired article to the user terminal 2 that has accessed the information server 3 is as follows. Then, the information server 3 is accessed from the user terminal 2. When the user terminal 2 and the information server 3 are connected, step 301
Then, a request for transmitting a condition information file in which condition information is described in a predetermined description language is transmitted from the information server 3 to the user terminal 2. This condition information includes a recipe condition and a purchase plan condition. In step 302, the condition information file is transmitted from the user terminal 2 that has received the request to the information server 3.

Next, in step 303, the information server 3 that has received the condition information file
, The recipe information that satisfies the recipe conditions is selected, and for each selected recipe information, parameters such as the total purchase amount, the time required for purchase, the number of visiting stores, and the like are calculated from the data of the product database 32 and the distance database 33, A purchase plan that satisfies the conditions for the purchase plan is generated based on the calculated parameters. In step 304, the selected recipe information and the purchase plan information generated for the recipe information are transmitted from the information server 3 to the user terminal 2.

In the user terminal 2, in step 305, the received recipe information and purchase plan information are displayed on a screen.

[0040]

According to the present invention, recipe information that satisfies desired recipe conditions is selected from a recipe database, and a purchase plan of a recipe that satisfies purchase plan condition information with parameters calculated from data in the product database is automatically generated. , The user simply enters the desired conditions and executes,
It is possible to easily obtain desired recipe information and purchase plan information of the ingredients. In addition, the purchase activity of the product is thereby efficiently performed. Further, each store does not need to separately advertise a product.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of an information service system according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a database of the information server according to the embodiment.

FIG. 3 is a data configuration diagram illustrating an example of a recipe database according to the present embodiment.

FIG. 4 is a sequence diagram showing an operation when registering data in a product database of the information service system according to the embodiment.

FIG. 5 is a sequence diagram illustrating an operation when providing recipe information and purchase plan information to a user terminal that has accessed the information server of the present embodiment.

FIG. 6 is an explanatory diagram illustrating an example of a recipe condition input screen according to the present embodiment.

FIG. 7 is an explanatory diagram illustrating an example of a purchase plan condition input screen according to the embodiment;

FIG. 8 is an explanatory diagram illustrating an example of a purchase plan display screen according to the present embodiment.

FIG. 9 is a block diagram illustrating a configuration of an information server according to another embodiment of the present invention.

FIG. 10 is a sequence diagram showing an operation when providing recipe information and purchase plan information to a user terminal accessing an information server according to still another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Store terminal 2 User terminal 3 Information server 4 Communication network 5 Information processing device 6 Storage device 7 Recording medium 31 Recipe database 32 Product database 33 Distance database 51 Processor 52 Memory 53 Line interface 100 to 104, 200 to 211, 300 to 305
Steps

Claims (8)

[Claims] 1. An information service method for providing information for obtaining a desired article from an information server to a user terminal via a communication network, the information server comprising: And a product database in which product information in which a store name, a product name of a product sold at the store and a price of the product are registered with each other is registered. Preparing in advance, accessing an information server from a store terminal of a store that sells the product, and transmitting the product information; registering the product information received by the information server in the product database; A step of accessing the information server from a terminal and transmitting recipe condition information describing the condition of the article desired by the user; Transmitting from the user terminal to the information server, purchase plan condition information including a total condition of prices of commodities necessary for making a desired article; and at the information server, the recipe condition information from the recipe database. Selecting the recipe information that satisfies the following conditions; and calculating a parameter including the total price of the product described in the selected recipe information from the data of the product database, and the parameter satisfies the purchase plan condition information. Generating the purchase plan information describing the store where each product should be purchased, and transmitting the selected recipe information and the generated purchase plan information from the information server to the user terminal. Information service method to have. 2. An information service method for providing information for obtaining a desired article from an information server to a user terminal via a communication network, the information server comprising: And a product database in which product information in which a store name, a product name of a product sold at the store and a price of the product are registered with each other is registered. Preparing in advance, accessing the information server from a store terminal of a store that sells the product and transmitting the product information; and registering the product information received by the information server in the product database; Accessing the information server from the user terminal, the recipe condition which is the condition of the article desired by the user, and the recipe conditions necessary for making the article. Transmitting a condition information file in which condition information including purchase plan conditions including a total condition of the price of the article is recorded; and the information server, wherein the recipe information satisfying the recipe condition in the condition information file is stored in the information server. A parameter selected from the recipe database and including the total price of the product described in the selected recipe information is calculated from the data of the product database, and the parameter satisfies the purchase plan condition in the condition information file. Generating purchase plan information describing a store where each product should be purchased; and transmitting the selected recipe information and the generated purchase plan information from the information server to the user terminal. Service method. 3. An information service system for providing information for obtaining a desired article via a communication network, wherein a store name, a product name of a product sold at the store, and data of a price of the product correspond to each other. A merchant terminal for transmitting the product information through the communication network; a recipe condition information describing the condition of the product desired by the user via the communication network; and a product required to make the desired product. Transmitting purchase plan condition information including total price conditions, receiving recipe information including product data necessary for making a predetermined product, and purchase plan information describing a store where each product should be purchased. A user terminal for displaying a screen, a recipe database in which a plurality of the recipe information are recorded, and a product database in which the product information is registered, received from the store terminal The product information registered in the product database, the recipe information that satisfies the recipe condition information received from the user terminal is selected from the recipe database, the price of the product described in the selected recipe information A parameter including a total is calculated from the data of the product database, the purchase plan information is generated so that the parameter satisfies the purchase plan condition information received from the user terminal, and the selected recipe information and the generated recipe information are generated. An information service system having an information server for transmitting purchase plan information to the user terminal. 4. An information service system for providing information for obtaining a desired product via a communication network, wherein a store name, a product name of a product sold at the store, and data of a price of the product correspond to each other. A merchant terminal that transmits the product information through the communication network, a recipe condition in which a condition of a product desired by the user is described through the communication network, and a product condition required to make the desired product. A condition information file that records purchase plan conditions including total price conditions is transmitted, and a purchase plan that describes recipe information including product data necessary for making a predetermined product and a store where each product should be purchased. A user terminal that receives information and displays it on a screen, a recipe database that records a plurality of the recipe information, and a product database in which the product information is registered Registering the product information received from the store terminal in the product database, selecting from the recipe database the recipe information satisfying the recipe conditions recorded in the condition information file received from the user terminal, and selecting A parameter including the total price of the product described in the recipe information described above is calculated from the data of the product database, and the parameter satisfies the purchase plan condition recorded in the condition information file received from the user terminal. An information service system having an information server that generates the purchase plan information and transmits the selected recipe information and the generated purchase plan information to the user terminal. 5. An information server for providing information for obtaining a desired article to a user terminal via a communication network, wherein a plurality of recipe information including data of commodities necessary for making a predetermined article is recorded. Received from the terminal of the store that sells the product, a product database for registering product information that associates the store name, the product name of the product sold at the store, and the price data of the product with each other. A purchase plan in which the product information is registered in the product database, and recipe condition information in which a condition of a product desired by the user is described from the user terminal and a condition of a total price of a product necessary for making the desired product. Receiving the condition information, selecting the recipe information satisfying the recipe condition information from the recipe database, and writing the selected recipe information in the selected recipe information. A parameter including the total price of the listed products is calculated from the data of the product database, and purchase plan information describing a store to purchase each product is generated so that the parameter satisfies the purchase plan condition information. And an information server having an information processing device for transmitting the selected recipe information and the generated purchase plan information to the user terminal. 6. An information server for providing information for obtaining a desired article to a user terminal via a communication network, wherein a plurality of pieces of recipe information including data of commodities necessary for making a predetermined article are recorded. Received from the terminal of the store that sells the product, a product database for registering product information that associates the store name, the product name of the product sold at the store, and the price data of the product with each other. The merchandise information is registered in the merchandise database, and from the user terminal, a recipe condition that is a condition of a product desired by the user and a purchase plan condition that includes a total condition of the price of the product necessary to make the desired product. Receive the recorded condition information file,
The recipe information that satisfies the recipe condition is selected from the recipe database, a parameter including the total price of the product described in the selected recipe information is calculated from the data of the product database, and the parameter is the purchase Information including an information processing device that generates purchase plan information describing a store where each product should be purchased so as to satisfy the plan condition, and transmits the selected recipe information and the generated purchase plan information to the user terminal. server. 7. A program for providing information for obtaining a desired article to a user terminal via a communication network, comprising: a store name, a product name of a product to be sold in the store, and data of a price of the product. Receiving product information corresponding to each other from the terminal of the store and registering the product information in the product database; and forming recipe condition information describing the condition of the product desired by the user from the user terminal and the desired product. A process of receiving purchase plan condition information including a condition of a total price of a required product; and a recipe database including a plurality of recipe information including data of a product necessary for making a predetermined product. A process of selecting the recipe information that satisfies the information; and a parameter including a total price of the product described in the selected recipe information. Processing for calculating from purchase data, and generating purchase plan information describing a store where each product should be purchased so that the parameter satisfies the purchase plan condition information. A recording medium recording an information service program for causing an information processing device to execute a process of transmitting the purchase plan information to the user terminal. 8. A program for providing information for obtaining a desired article to a user terminal via a communication network, comprising: a store name, a product name of a product to be sold at the store, and data of the price of the product. Receiving from the terminal of the store the product information corresponding to each other and registering the product information in the product database; and the recipe conditions, which are the conditions of the product desired by the user from the user terminal, and the products required to make the desired product. A process of receiving a condition information file in which purchase plan conditions including the total price conditions are recorded, and a recipe database in which a plurality of recipe information including data of commodities necessary for making a predetermined article are recorded. A process of selecting the recipe information that satisfies the recipe condition; and a parameter including a total price of goods described in the selected recipe information. A process of calculating from the data of the product database, a process of generating purchase plan information describing a store to purchase each product so that the parameter satisfies the purchase plan condition, and a process of generating the selected recipe information. A recording medium recording an information service program for causing an information processing device to execute a process of transmitting the purchase plan information to the user terminal.