JP2005092818A - Commodity development support system, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To objectively decide a specification to be improved, a specification value after improvement and the like based on a questionnaire survey result of a customer using a commodity. <P>SOLUTION: This commodity development support system, which selects a specification of the commodity to be improved according to a customer satisfaction degree, is provided with a customer satisfaction distribution storage part storing a customer satisfaction degree distribution about each of a plurality of commodity specifications, a contribution ratio storage part storing a contribution ratio of each of a plurality of specifications to the customer satisfaction degree for the product, an additional cost storage part storing an additional cost required when the specification value is increased by a unit quantity in each of a plurality of specifications, and an improved specification selection part selecting a specification optimizing an improvement ratio of the customer satisfaction degree per an additional cost on the basis of the customer satisfaction degree distribution, the contribution ratio, and the additional cost of each of a plurality of specifications. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a product development support system, a product development support method, and a product development support program. In particular, the present invention relates to a product development support system, a product development support method, and a product development support program that select specifications of the product to be improved based on the customer satisfaction of the product.

  Conventionally, a questionnaire or the like is performed on a user who has purchased a product, and the customer satisfaction level of the product is investigated. Based on the survey results, specifications to be improved are qualitatively determined, and specifications for improved products including new products are determined. In addition, since the presence of a prior art document is not recognized at this time, the description regarding a prior art document is abbreviate | omitted.

  In the above method, since the specifications to be improved are qualitatively determined, it is easily influenced by the subject of the specification decision maker who determines the specifications to be improved from the survey results of customer satisfaction. It was difficult to objectively determine spec values and the like.

  Accordingly, an object of the present invention is to provide a product development support system, a product development support method, and a product development support program that can solve the above-described problems. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous specific examples of the present invention.

  According to the first aspect of the present invention, there is provided a product development support system for selecting specifications of a product to be improved based on customer satisfaction of the product, and each of a plurality of specifications of the product includes the specification. A customer satisfaction distribution storage unit that stores a customer satisfaction distribution, which is a distribution of the number of customers satisfied with the specification when the specification satisfies the specification value, and each of the plurality of specifications A contribution rate storage unit for storing a contribution rate of the specification with respect to customer satisfaction of the product, and for each of the plurality of specifications, the spec value for the specification of the product is improved by a predetermined unit amount. An additional cost storage unit that stores an additional cost generated in the case of a plurality of specifications, the customer satisfaction distribution for each of the plurality of specifications, the contribution rate, and Based on the serial additional cost, to provide a product development support system and a improved specification selection section for selecting the specification improvement rate of customer satisfaction per additional cost is maximized. According to the product development support system, specifications to be improved can be determined quantitatively, and specifications to be improved, spec values after improvement, and the like can be objectively determined.

  The additional cost storage unit stores, as the additional cost, a development cost for improving a predetermined unit amount of the specification value for the specification of the product for each of the plurality of specifications. The section may select the specification that maximizes the improvement rate of customer satisfaction per development cost based on the customer satisfaction distribution, the contribution rate, and the development cost for each of the plurality of specifications. Good. By using development costs as additional costs, the product development support system can be used to select the specifications that maximize the rate of improvement in customer satisfaction per product cost, and the most based on responses such as questionnaires Specifications with high development efficiency can be determined quantitatively.

  In addition, the customer satisfaction distribution storage unit, the contribution rate storage unit, and the additional cost storage unit, for each of the plurality of products having different price ranges, the customer satisfaction for each of the plurality of specifications that the product has Each of the distribution, the contribution rate, and the additional cost is stored, and further includes a price range designation input unit that inputs designation of a price range from a user of the product development support system, and the improvement specification selection unit is input Based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications in the product included in the price range, the improvement rate of the customer satisfaction per additional cost is maximum. The above specifications may be selected. Thereby, since the specification etc. which should be improved can be determined for every price range of goods using the said product development support system, a different customer's request | requirement according to the price range of goods can be reflected in goods appropriately.

  The product development support system further includes a target improvement rate input unit that inputs a target improvement rate that is a target value of the improvement rate of customer satisfaction, and the improvement specification selection unit includes the plurality of specifications. Based on the customer satisfaction distribution for each, the contribution rate, and the additional cost, the specification that maximizes the improvement rate of the customer satisfaction per additional cost when the customer satisfaction is improved the target improvement rate And an additional cost calculation unit for calculating the additional cost for improving the specification selected by the improvement specification selection unit and improving customer satisfaction by the target improvement rate. As a result, when the target improvement rate is input, the product development support system is used to quantitatively determine the specifications to be improved in order to improve the customer satisfaction of the product by the target improvement rate, and to improve the target. The additional costs required to achieve the rate can be calculated and the appropriate development investment can be determined according to the customer satisfaction to be achieved.

  Further, a budget amount input unit for inputting a budget amount of additional costs from a user of the product development support system, the improvement specification selection unit, the customer satisfaction distribution for each of the plurality of specifications, Based on the contribution rate and the additional cost, the specification that maximizes the improvement rate of customer satisfaction per budget amount is selected, and the specification selected by the improvement specification selection unit is further improved by the budget amount. A customer satisfaction improvement rate calculation unit for calculating the improvement rate of customer satisfaction in the case of the customer. As a result, when the budget amount is entered, the product development support system can be used to improve the product satisfaction level when it is improved within the budget amount, and the customer satisfaction associated with this improvement. The degree of improvement can be calculated, and an optimum development investment can be determined according to the budget amount, and the effect can be estimated in advance.

  According to the second aspect of the present invention, there is provided a product development support method for realizing a product development support system by a computer, which selects a specification of the product to be improved based on customer satisfaction of the product, the computer Stores, for each of a plurality of specifications that the product has, for each spec value that can be taken for the specification, a customer satisfaction distribution that is a distribution of the number of customers that satisfy the specification when the specification satisfies the specification value A customer satisfaction distribution storage unit for each of the plurality of specifications, a contribution rate storage unit for storing a contribution rate of the specification with respect to a customer satisfaction degree of the product, and for each of the plurality of specifications, An additional cost storage unit for storing additional costs incurred when the spec value for the specification is improved by a predetermined unit amount; The computer selects the specification that maximizes the improvement rate of customer satisfaction per additional cost based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications. A product development support method including an improvement specification selection stage is provided.

  According to a third aspect of the present invention, there is provided a product development support program for causing a computer to function as a product development support system for selecting specifications of a product to be improved based on customer satisfaction of the product, The product development support program, for each of a plurality of specifications that the product has, for each specification value that can be taken for the specification, distribution of the number of customers that satisfy the specification when the specification satisfies the specification value A customer satisfaction distribution storage unit that stores a customer satisfaction distribution, a contribution rate storage unit that stores a contribution rate of the specification with respect to a customer satisfaction level of the product for each of the plurality of specifications, and the plurality of specifications Occurs when the spec value for the product specification is improved by a predetermined unit amount. An additional cost storage unit for storing additional costs, and a customer satisfaction improvement rate per additional cost based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications. A product development support program that functions as an improved specification selection unit that selects the above specifications is provided.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

FIG. 1 shows a configuration of a product development support system 10 according to the present embodiment. The product development support system 10 according to the present embodiment aims to select the specification of the product to be improved based on the customer satisfaction of the product obtained by a questionnaire or the like conducted for the user who purchased the product. It is a system.
The product development support system 10 includes an answer input unit 100, an answer storage unit 105, a customer satisfaction distribution generation unit 110, a customer satisfaction distribution storage unit 115, a structure analysis unit 120, a contribution rate storage unit 125, Additional cost storage unit 130, price range designation input unit 135, target improvement rate input unit 145, budget amount input unit 155, improvement specification selection unit 140, additional cost calculation unit 150, and customer satisfaction improvement rate calculation Unit 160 and an output unit 165.

  The answer input unit 100 inputs an answer such as a questionnaire given to the user who purchased the product, and stores it in the answer storage unit 105. Based on the answer stored in the answer storage unit 105, the customer satisfaction distribution generation unit 110 generates a customer satisfaction distribution indicating customer satisfaction for each specification value for each specification of the product. The customer satisfaction distribution storage unit 115 stores the customer satisfaction distribution for each of a plurality of specifications of the product generated by the customer satisfaction distribution generation unit 110. Here, for each of a plurality of products having different price ranges, the customer satisfaction distribution storage unit 115 stores the identification information of the product, the price range of the product, and the customer satisfaction distribution for each of the specifications of the product. You can do it.

Based on the answer stored in the answer storage unit 105, the structure analysis unit 120 generates a contribution ratio of each specification to the customer satisfaction of the product. The contribution rate storage unit 125 stores, for each of a plurality of specifications of the product, generated by the structure analysis unit 120, the contribution rate of the specification with respect to the customer satisfaction of the product. Here, for each of a plurality of products having different price ranges, the contribution rate storage unit 125 may store the identification information of the product, the price range of the product, and the contribution rate for each of the specifications of the product.

  The additional cost storage unit 130 stores, for each of a plurality of specifications of a product, an additional cost that is generated when the spec value for the specification of the product is improved by a predetermined unit amount. Here, the additional cost storage unit 130 may store the identification information of the product, the price range of the product, and the additional cost for each of the specifications of the product for each of a plurality of products having different price ranges. .

  The price range designation input unit 135 inputs a price range designation for a product for which a specification to be improved is selected from a user of the product development support system 10. The target improvement rate input unit 145 inputs a target improvement rate that is a target value of the improvement rate of customer satisfaction from the user of the product development support system 10. The budget amount input unit 155 inputs a budget amount for additional costs from the user of the product development support system 10.

  The improved specification selection unit 140 obtains the customer satisfaction distribution, contribution rate, and additional cost for each of a plurality of specifications of the product from the customer satisfaction distribution storage unit 115, the contribution rate storage unit 125, and the additional cost storage unit 130. get. The improvement specification selection unit 140 selects a specification that maximizes the improvement rate of customer satisfaction per additional cost based on the customer satisfaction distribution, contribution rate, and additional cost for each of the plurality of specifications of the product. To do. Here, when the specification of the price range is input by the price range specification input unit 135, the improved specification selection unit 140 displays the customer satisfaction distribution for each of a plurality of specifications in the product included in the input price range. Based on the contribution rate and the additional cost, the specification that maximizes the improvement rate of the customer satisfaction per additional cost is selected.

  When the target improvement rate is input by the target improvement rate input unit 145, the improvement specification selection unit 140 determines the customer satisfaction based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications. Select a specification that maximizes the improvement rate of customer satisfaction per additional cost when improving the target improvement rate by the target improvement rate. On the other hand, when the budget amount of the additional cost is input by the budget amount input unit 155, the improvement specification selection unit 140 determines the budget based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications. Select specifications that maximize customer satisfaction per value.

  The additional cost calculation unit 150 is based on the customer satisfaction distribution stored in the customer satisfaction distribution storage unit 115, the contribution rate stored in the contribution rate storage unit 125, and the additional cost stored in the additional cost storage unit 130. The additional cost for improving the customer satisfaction by improving the specification selected by the improvement specification selection unit 140 by the target improvement rate input by the target improvement rate input unit 145 is calculated.

  The customer satisfaction improvement rate calculation unit 160 includes a customer satisfaction distribution stored in the customer satisfaction distribution storage unit 115, a contribution rate stored in the contribution rate storage unit 125, and an additional cost stored in the additional cost storage unit 130. Based on the above, the improvement rate of the customer satisfaction when the specification selected by the improvement specification selection unit 140 is improved by the budget amount is calculated.

  The output unit 165 improves the specification calculated by the additional cost calculation unit 150 by the target improvement rate, which is selected by the improvement specification selection unit 140 and has the maximum improvement rate of customer satisfaction per additional cost. And the additional cost for improving the customer satisfaction and the customer satisfaction improvement rate calculated by the customer satisfaction improvement rate calculation unit 160 when the specification is improved by the budget amount. The analysis result is output to the user of the product development support system 10.

FIG. 2 shows a method for generating the customer satisfaction distribution 210 according to this embodiment.
First, the answer input unit 100 inputs, for each of a plurality of specifications of a product, an answer about customer satisfaction with respect to the specification values of the specifications. For example, when the product is a printer, examples of the specifications of the product include printing speed, resolution, ease of installation, appearance or design, and usability of attached software. The answer input unit 100 according to the present embodiment inputs an answer that causes the customer to select either very satisfied, satisfied, normal, dissatisfied, or very dissatisfied for each of these specifications. In FIG. 2, a description will be given taking as an example the printing speed which is one of the printer specifications.

  Next, the customer satisfaction distribution generation unit 110 generates a customer satisfaction distribution for each specification from an answer distribution that is a distribution of responses for each specification. Here, the customer satisfaction distribution is a distribution of the number of customers that are generated for each of a plurality of specifications of a product and are satisfied with the specification when the specification satisfies the specification value for each spec value that can be taken for the specification. It is. For example, the customer satisfaction distribution 210 indicates that the printing speed specification satisfies the specification value for each of the spec values 8 ppm (pages / minute), 10 ppm, 12 ppm, 14 ppm, and 16 ppm that can be taken for the printing speed. Is the distribution of the number of customers satisfied. The customer satisfaction distribution generation unit 110 determines that the customer who selected the answer is satisfied corresponding to each satisfaction degree in the response distribution 200, that is, very satisfied, satisfied, normal, dissatisfied, and very dissatisfied. The customer satisfaction distribution 210 is generated by assigning spec values, for example, 8 ppm, 10 ppm, 12 ppm, 14 ppm, and 16 ppm, respectively. At this time, the customer satisfaction distribution generation unit 110 sets the specification value that is determined to be satisfied by the customer who has selected the answer to the answer of satisfaction as the specification value for the specification of the current product. Then, the customer satisfaction distribution generation unit 110 stores the customer satisfaction distribution generated by the processing described above in the customer satisfaction distribution storage unit 115 for each product and specification.

  The improvement specification selection unit 140, the additional cost calculation unit 150, and the customer satisfaction improvement rate calculation unit 160 refer to the customer satisfaction distribution to determine the relationship between the specification value of the specification and the customer satisfaction for the specification. Can be obtained. For example, when it is necessary to improve the customer satisfaction of the printing speed to 80% based on the target improvement rate input to the target improvement rate input unit 145, the additional cost calculation unit 150 displays the customer satisfaction distribution 210 in the customer satisfaction distribution 210. Based on this, it is determined that the printing speed needs to be improved to 13 ppm. The additional cost calculation unit 150 can calculate an additional cost for improving the printing speed from 10 ppm to 13 ppm with reference to the additional cost storage unit 130.

  FIG. 3 shows an example of a model structure generated by the structure analysis unit 120 according to this embodiment. Based on the answer stored in the answer storage unit 105, the structure analysis unit 120 corresponds to the observation variables 300a to 300g corresponding to the customer satisfaction of each of the specifications of the product and the customer satisfaction of the product. The relationship with the observation variables 300h to i is modeled. In order to generate this model, the answer input unit 100 may further input an answer about the customer satisfaction of the product and use it as the observation variables 300h to 300i.

  Based on the answer stored in the answer storage unit 105, the structure analysis unit 120 generates a contribution ratio of each specification to the customer satisfaction of the product. Here, the structure analysis unit 120 may generate a contribution rate based on, for example, the correlation between the customer satisfaction of the product and the customer satisfaction of each specification. Further, as shown in FIG. 3, the structure analysis unit 120 may generate a contribution rate using a technique such as covariance structure analysis after introducing intermediate parameters such as latent variables 310a to 310b, for example. In this case, for example, the contribution rate of the printing speed (observation variable 300a) to the customer satisfaction (observation variable 300h) is 0.48 as the contribution rate of the printing speed to the attractive quality (latent variable 310a) and attractive to the customer satisfaction. It can be calculated by the product of the quality contribution ratio 0.89. The structure analysis unit 120 stores the contribution rate generated by the processing described above in the contribution rate storage unit 125 for each product and specification.

  FIG. 4 shows an example of the contents of the additional cost storage unit 130 according to the present embodiment. For each of a plurality of products having different price ranges, the additional cost storage unit 130 includes identification information for identifying the product, such as the name of the product, the price range of the product, and additional costs for each of the specifications of the product. Is stored respectively. For example, the additional cost storage unit 130 illustrated in FIG. 4 associates the product “A” with the product price range “˜30,000 yen” and the additional cost for improving the printing speed by a predetermined unit amount. Each information of “2,000 yen” and additional cost “3,000 yen” for improving the resolution by a predetermined unit amount is stored.

  Here, the additional cost for improving the predetermined unit amount of the specification may be, for example, a cost required to improve the printing speed by 2 ppm, a cost required to double the resolution, or the like. Further, it may be the cost required to increase the predetermined specification amount of the specification from the current value to a new specification value. For example, in order to improve the printing speed from 10 ppm to 12 ppm. Costs required and costs required to improve from 10 ppm to 14 ppm may be stored individually.

  In the above, the additional cost storage unit 130 stores, as the additional cost, the cost of the product that increases in order to improve the predetermined unit amount of the specification. Instead, the additional cost storage unit 130 may store, as an additional cost, a development cost for improving a predetermined unit amount of the specification value for the specification of the product for each of a plurality of specifications.

FIG. 5 shows an operation flow of the product development support system 10 according to the present embodiment.
First, the answer input unit 100 inputs an answer such as a questionnaire given to the user who purchased the product and stores it in the answer storage unit 105 (step S500). Next, the customer satisfaction distribution generation unit 110 generates a customer satisfaction distribution for each specification of the product based on the answer (S510). Next, the structure analysis unit 120 performs a covariance structure analysis or the like based on the answer stored in the answer storage unit 105, and generates a contribution rate of each specification to the customer satisfaction of the product (S520). Next, the price range designation input unit 135 inputs the price range designation for the product for which the specification to be improved is selected from the user of the product development support system 10 (S530).

  Next, the target improvement rate input unit 145 and the budget amount input unit 155 prompt the user of the product development support system 10 to input the target improvement rate and the budget amount, respectively (S535). When the target improvement rate and the budget amount are not input (S540: No, S550: No), the improvement specification selection unit 140 satisfies the customer satisfaction for each of the plurality of specifications included in the product included in the input price range. Based on the distribution, the contribution rate, and the additional cost, a specification that maximizes the improvement rate of the customer satisfaction per additional cost when the spec value of the specification is improved by a predetermined unit amount is selected (S555). More specifically, the improvement specification selection unit 140 corresponds to the improvement rate of the customer satisfaction of the specification and the customer satisfaction of the product when the specification value of the plurality of specifications is increased by a predetermined unit amount. A specification that maximizes the product of the customer satisfaction and the contribution rate of the specification is selected.

  When the target improvement rate is input (S540: Yes), the improvement specification selection unit 140 determines the customer satisfaction distribution, the contribution rate, and the additional cost for each of a plurality of specifications included in the product included in the input price range. Based on the above, the specification that maximizes the improvement rate of the customer satisfaction per additional cost when the customer satisfaction is improved by the target improvement rate is selected (S560). More specifically, for each of a plurality of specifications, the improvement specification selection unit 140 improves the customer satisfaction of the product based on the contribution rate of the customer satisfaction of the specification with respect to the customer satisfaction of the product. In this case, the improvement rate of customer satisfaction of the specification is calculated. Then, the improved specification selection unit 140 selects a specification that minimizes the additional cost required to improve the improvement rate calculated for the customer satisfaction of the specification. Next, the additional cost calculation unit 150 improves the customer satisfaction by improving the specification selected by the improvement specification selection unit 140 by the target improvement rate based on the customer satisfaction distribution, the contribution rate, and the additional cost. An additional cost is calculated (S565).

  On the other hand, when the target improvement rate is not input and the budget amount is input (S540: No, S550: Yes), the improvement specification selection unit 140 has each of a plurality of specifications included in the product included in the input price range. Based on the customer satisfaction distribution, contribution rate, and additional cost, a specification that maximizes the improvement rate of the customer satisfaction per budget is selected (S570). More specifically, for each of a plurality of specifications, the improvement specification selection unit 140 increases the customer satisfaction improvement rate of the specification when the specification value of the specification is increased by an additional cost corresponding to the budget amount, The specification that maximizes the product of the contribution ratio of the customer satisfaction degree of the specification to the customer satisfaction degree is selected. Next, the customer satisfaction improvement rate calculation unit 160 calculates the customer satisfaction when the specification selected by the improvement specification selection unit 140 is improved by the budget amount based on the customer satisfaction distribution, the contribution rate, and the additional cost. An improvement rate is calculated (S575).

  And the output part 165 outputs the analysis result by S555, the analysis result by S560 and S565, or the analysis result by S570 and S575 (S580).

  FIG. 6 shows an example of the hardware configuration of the computer 1200 according to this embodiment. A computer 1200 according to this embodiment includes a CPU 1100, ROM 1110, RAM 1120, communication interface 1130, hard disk drive 1140, flexible disk drive 1150, and CD-ROM drive 1160.

  The CPU 1100 operates based on programs stored in the ROM 1110 and the RAM 1120 and controls each unit. The ROM 1110 stores a boot program executed by the CPU 1100 when the computer 1200 is started, a program depending on the hardware of the computer 1200, and the like. The RAM 1120 stores programs executed by the CPU 1100, data used by the CPU 1100, and the like. The communication interface 1130 communicates with other devices via a communication network. The hard disk drive 1140 stores programs and data used by the computer 1200 and supplies them to the CPU 1100 via the RAM 1120. The flexible disk drive 1150 reads a program or data from the flexible disk 1190 and provides it to the RAM 1120. The CD-ROM drive 1160 reads a program or data from the CD-ROM 1195 and provides it to the RAM 1120.

  A program provided to the CPU 1100 via the RAM 1120 is stored in a recording medium such as the flexible disk 1190, the CD-ROM 1195, or an IC card and provided by the user. The program is read from the recording medium, installed in the computer 1200 via the RAM 1120, and executed in the computer 1200.

  A product development support program that is installed and executed on the computer 1200 and causes the computer 1200 to function as the product development support system 10 includes an answer input module, an answer management module that manages the answer storage unit 105, and a customer satisfaction distribution generation module. A customer satisfaction distribution management module for managing the customer satisfaction distribution storage unit 115, a structure analysis module, a contribution rate management module for managing the contribution rate storage unit 125, and an additional cost management module for managing the additional cost storage unit 130. A price range designation input module, an improvement specification selection module, a target improvement rate input module, an additional cost calculation module, a budget amount input module, a customer satisfaction improvement rate calculation module, and an output module. These programs or modules include a computer 1200, an answer input unit 100, an answer storage unit 105, a customer satisfaction distribution generation unit 110, a customer satisfaction distribution storage unit 115, a structure analysis unit 120, and a contribution rate storage. Unit 125, additional cost storage unit 130, price range designation input unit 135, improvement specification selection unit 140, target improvement rate input unit 145, additional cost calculation unit 150, budget amount input unit 155, customer satisfaction The degree improvement rate calculation unit 160 and the output unit 165 function.

  The program or module shown above may be stored in an external recording medium. As a recording medium, in addition to the flexible disk 1190 and the CD-ROM 1195, an optical recording medium such as a DVD or PD, a magneto-optical recording medium such as an MD, a tape medium, a semiconductor memory such as an IC card, or the like can be used. Further, a storage device such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a recording medium, and the program may be provided to the computer 1200 from an external network via the communication network.

  According to the product development support system 10 described above, the specification to be improved can be quantitatively determined, and the specification to be improved, the specification value after the improvement, and the like can be objectively determined. That is, according to the product development support system 10, based on the customer satisfaction distribution, the contribution rate, and the additional cost, the specification that maximizes the improvement rate of the customer satisfaction of the product per additional cost is determined quantitatively. You can choose. In addition, by using development costs as additional costs, it is possible to select the specification that maximizes the improvement rate of the customer satisfaction level of the product per development cost, and the specification with the highest development efficiency can be selected based on responses such as questionnaires. It can be determined quantitatively. In addition, since the above-described processing can be performed for each price range of a product, customer requests that differ depending on the price range of the product can be appropriately reflected in the product.

  Further, according to the product development support system 10, when the target improvement rate is input, the specification to be improved is quantitatively determined to improve the customer satisfaction of the product by the target improvement rate, and the target improvement rate The additional cost required to achieve this can be calculated, and an appropriate development investment can be determined according to the degree of customer satisfaction to be achieved. Then, when the budget amount is input, it is possible to calculate the specifications that can maximize the satisfaction of the product when it is improved within the range of the budget amount, and the improvement rate of the customer satisfaction associated with this improvement. It is possible to determine the optimum development investment according to the budget amount and estimate the effect in advance.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

1 shows a configuration of a product development support system 10 according to the present embodiment. A method for generating a customer satisfaction distribution 210 according to the present embodiment will be described. An example of the model structure which the structure analysis part 120 concerning this embodiment produces | generates is shown. An example of the content of the additional expense storage part 130 which concerns on this embodiment is shown. The operation | movement flow of the product development support system 10 which concerns on this embodiment is shown. 2 shows an exemplary hardware configuration of a computer 1200 according to the present embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Product development support system, 100 Reply input part, 105 Reply storage part, 110 Customer satisfaction distribution generation part, 115 Customer satisfaction distribution storage part, 120 Structure analysis part, 125 Contribution rate storage part, 130 Additional cost storage part, 135 Price range designation input unit, 140 improvement specification selection unit, 145 target improvement rate input unit, 150 additional cost calculation unit, 155 budget amount input unit, 160 customer satisfaction improvement rate calculation unit, 165 output unit, 200 answer distribution, 210 customers Satisfaction distribution, 300a-i observed variable, 310a-b latent variable, 1100 CPU, 1110 ROM, 1120 RAM, 1130 communication interface, 1140 hard disk drive, 1150 flexible disk drive, 1160 CD-ROM drive, 1190 flexible disk, 1 95 CD-ROM, 1200 computer

Claims (7)

A product development support system that selects the specifications of the product to be improved based on the customer satisfaction of the product,
For each of a plurality of specifications of the product, for each spec value that can be taken for the specification, a customer that stores a customer satisfaction distribution that is a distribution of the number of customers that satisfy the specification when the specification satisfies the specification value A satisfaction distribution storage unit;
For each of the plurality of specifications, a contribution rate storage unit that stores a contribution rate of the specification with respect to customer satisfaction of the product;
For each of the plurality of specifications, an additional cost storage unit that stores an additional cost generated when the spec value for the specification of the product is improved by a predetermined unit amount;
An improved specification selection unit that selects the specification that maximizes the improvement rate of customer satisfaction per additional cost based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications; Product development support system with The additional cost storage unit stores, as the additional cost, a development cost for improving a predetermined unit amount of the specification value for the specification of the product for each of the plurality of specifications.
The improvement specification selection unit is configured to determine the specification that maximizes the improvement rate of customer satisfaction per development cost based on the customer satisfaction distribution, the contribution rate, and the development cost for each of the plurality of specifications. The product development support system according to claim 1 to be selected. The customer satisfaction distribution storage unit, the contribution rate storage unit, and the additional cost storage unit, for each of the plurality of products having different price ranges, the customer satisfaction distribution for each of the plurality of specifications that the product has, Storing the contribution rate and the additional cost,
From the user of the product development support system, further comprises a price range designation input unit for inputting the designation of the price range,
The improved specification selection unit is configured to calculate the per-addition cost based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications in the product included in the input price range. The product development support system according to claim 1, wherein the specification that maximizes the improvement rate of customer satisfaction is selected. It further comprises a target improvement rate input unit for inputting a target improvement rate that is a target value of the improvement rate of customer satisfaction from the user of the product development support system,
The improvement specification selection unit is configured to increase the customer satisfaction per target additional cost based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications. Select the specification that maximizes customer satisfaction,
2. The product development support system according to claim 1, further comprising: an additional cost calculation unit that calculates the additional cost for improving the specification selected by the improvement specification selection unit and improving customer satisfaction by the target improvement rate. . A budget amount input unit for inputting the budget amount of the additional cost from the user of the product development support system is further provided.
The improvement specification selection unit determines the specification that maximizes the improvement rate of customer satisfaction per budget amount based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications. Selected,
The product development support system according to claim 1, further comprising: a customer satisfaction improvement rate calculation unit that calculates an improvement rate of customer satisfaction when the specification selected by the improvement specification selection unit is improved by the budget amount. A product development support method for realizing a product development support system by a computer, which selects a specification of the product to be improved based on customer satisfaction of the product,
The computer, for each of a plurality of specifications that the product has, for each specification value that can be taken for the specification, customer satisfaction distribution that is a distribution of the number of customers that satisfy the specification when the specification satisfies the specification value A customer satisfaction distribution storage unit for storing,
For each of the plurality of specifications, a contribution rate storage unit that stores a contribution rate of the specification with respect to customer satisfaction of the product;
For each of the plurality of specifications, an additional cost storage unit that stores additional costs generated when the spec value for the specification of the product is improved by a predetermined unit amount, and
Based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications, the improved specification for selecting, by the computer, the specification that maximizes the improvement rate of customer satisfaction per additional cost. Product development support method with a selection stage. A product development support program for causing a computer to function as a product development support system for selecting specifications of a product to be improved based on customer satisfaction of the product,
The product development support program includes the computer,
For each of a plurality of specifications of the product, for each spec value that can be taken for the specification, a customer that stores a customer satisfaction distribution that is a distribution of the number of customers that satisfy the specification when the specification satisfies the specification value A satisfaction distribution storage unit;
For each of the plurality of specifications, a contribution rate storage unit that stores a contribution rate of the specification with respect to customer satisfaction of the product;
For each of the plurality of specifications, an additional cost storage unit that stores an additional cost generated when the spec value for the specification of the product is improved by a predetermined unit amount;
An improved specification selection unit that selects the specification that maximizes the improvement rate of customer satisfaction per additional cost based on the customer satisfaction distribution, the contribution rate, and the additional cost for each of the plurality of specifications; Product development support program to make it function.

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