JPH11259282A - Device for synthesizing program and method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate a search solution using various parts by preventing plural programs to be synthesized from being constituted of the same program parts and convergence only on the programs whose parameter values only are different. SOLUTION: This device is provided with an outline processing procedure designating means 10 for designating an outline processing procedure being the rough processing of a synthetic program, program parts selecting means 11 for selecting a prescribed program parts according to the applied outline processing procedure 10, and supplying the information of the parameter to a program parts parameter adjusting means 14, program connecting means 13 for connecting the program parts selected by the program parts selecting means 11 according to the outline processing procedure, and synthesizing the programs, and means 14 for adjusting the parameter of the program parts included in the synthesized program for allowing the synthetic program to obtain the highest evaluated value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program synthesizing device for synthesizing a desired program from program components registered in advance, and more particularly to synthesizing a temporary program at first, and repeatedly improving the program. And a program synthesizing device that finally synthesizes a high-performance program.

[0002]

2. Description of the Related Art In a technique of creating a new program by combining program parts accumulated in the past, it is necessary to combine programming knowledge possessed by human experts into a form that can be handled by a machine. Although this is a complicated and difficult task, it is one of the knowledge that can be acquired relatively easily from experts, only formal knowledge of connection information between program parts, that is, connection information of input / output arguments. Technologies that use are already proposed.

For example, a technique has been proposed in which a tentative program is used as a starting point, and a program having a gradually higher performance is synthesized by repeatedly making corrections. A technique using a genetic algorithm described in a reference document (“learning of an image processing strategy in a recognition mechanism learning system MIRACLE-IV”, IEICE Technical Report PRU88-20) is an example of this.

[0004] In addition, first, a temporary program is created, evaluation is performed based on the difference between the processing result of the program and the target of the processing result, and correction is repeatedly performed on the program until the evaluation value reaches a desired value. There is a program synthesizing technique that finally obtains a high-performance program by applying the program.

In such a program synthesizing technique, a predetermined program part is selected from a plurality of program parts by search, and a program is synthesized by combining these parts.

A function subroutine, which is a substance of a program component, includes various input arguments. As input arguments, there are those which copy output arguments whose values are already determined by program components executed before the program component, and those which determine values by appropriately substituting specific values. The latter input argument is referred to as “program component parameter” in this specification.

Here, if the change in the evaluation value due to the adjustment of the parameters of the program component is smaller than the change due to the change in the program component, in other words, the change in the evaluation value of the program to be synthesized indicates which program component Consider a problem under the condition that it changes greatly depending on whether or not is selected.

[0008] When the program synthesis is performed by the above-described conventional technique, all the programs having high evaluation values are obtained by combining the same program parts, and a phenomenon occurs in which only the values of the parameters are simply different.

When a large number of programs having evaluation values higher than desired are obtained, any one of the programs is selected. However, when these programs include a specific program component, the evaluation value is not determined. There is a problem that the program cannot be adopted regardless of the height.

For example, consider an image processing program used for a visual inspection of a product. In order to detect scratches on the surface, a program component “Hough transform” for extracting a straight line is effective, and a program incorporating this program has a high evaluation value. In order to use this program on a production line, it is necessary to port the program to a program that can operate on an image processing board mounted on an inspection device. However,
Since the Hough transform is a calculation that requires a long calculation time, it is often not incorporated in an image processing board intended for instantaneous processing. Therefore, it is not possible to use a program including Hough transform for the above purpose.

However, according to the conventional program synthesizing technique, in this case, a program including only programs including Hough transform is synthesized. For this reason, there is a problem in that, although a program exhibiting high performance is obtained, it cannot be used.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in order to cope with the above-described circumstances, and has as its object to select a program part by searching, and then adjust parameters to thereby find a search solution. It is an object of the present invention to provide a program synthesizing apparatus and a method for synthesizing a program, which can avoid a convergence of a program consisting only of the same program components and differ only in parameter values, and can generate a search solution using various components.

[0013]

According to the program synthesizing apparatus and method of the present invention, a search for program parts and their parameters is performed because the search solution is limited to a program containing a specific program part. Focusing on a certain point, this problem is solved by adjusting the parameter values without searching.

More specifically, the present invention is configured as follows.

(1) A program synthesizing apparatus according to the present invention includes a general processing procedure designating means for specifying a general processing procedure of a target program, and a program component storage means for storing a plurality of program components each having a component classification and a parameter. Program component selecting means for selecting a predetermined program component from the program component storage means, and program synthesizing means for synthesizing a target program by combining the program components selected by the program component selecting means according to the general processing procedure; Parameter adjusting means for adjusting the parameters of the individual program parts constituting the target program synthesized by the synthesizing means.

(2) The program synthesizing apparatus according to the present invention is the apparatus according to the above (1), wherein the parameter adjusting means obtains an evaluation value of a target program for which parameters of individual program components have been adjusted by the parameter adjusting means. Means for selecting a program part based on the evaluation value obtained by the evaluation means.

(3) In the program synthesizing method according to the present invention, a step of designating a general processing procedure of a desired program based on the classification of the program parts, and a step of selecting a program part corresponding to the general processing procedure from the plurality of program parts A component selecting step to be selected, a combining step of combining the program components selected in the component selecting step to combine a target program, and adjusting parameters of the program components incorporated in the target program combined in the combining step An adjusting step, an evaluating step of evaluating the performance of the target program whose parameters have been adjusted in the adjusting step to obtain an evaluation value;
An execution control step of repeatedly executing the component selection step, the synthesis step, the adjustment step, and the evaluation step until a predetermined end condition is satisfied.

(4) The program synthesizing method according to the present invention is the method according to the above (3), wherein the component selecting step selects a program component by referring to the evaluation value obtained in the evaluating step. It is characterized by the following.

(5) The recording medium of the present invention is a recording medium on which a program for synthesizing a desired program by combining predetermined program components among a plurality of program components classified in advance is provided. Means for designating a general processing procedure of a desired program based on a classification of parts, means for selecting a program part corresponding to the general processing procedure from the plurality of program parts, and combining the selected program parts with a program Means for adjusting the parameters of the program components included in the synthesized program, and means for evaluating the performance of the synthesized program to obtain an evaluation value;
Is recorded.

[0020]

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

In this embodiment, a program synthesis is performed in which a tentative program is synthesized by using pre-registered program parts, and a final program having good performance is synthesized by gradually improving the program. Related to the device.

FIG. 1 is a block diagram showing a schematic configuration of a program synthesizing apparatus according to this embodiment.

As shown in FIG. 1, the program synthesizing apparatus
Rough processing procedure designating means 10, program part selecting means 11, program part storing means 12, program combining means 13, program part parameter adjusting means 14
And a program evaluation means 15.

First, the overall flow of the program synthesizing apparatus according to the present embodiment will be roughly described, focusing on the flow of data between the means, and then the specific configuration and operation of each means will be described in detail. .

(Overall General Flow) FIG. 2 is a flowchart showing the general flow of the program synthesizing apparatus according to the present embodiment. First, a rough processing procedure which is a rough processing of a program to be synthesized is specified by a rough processing procedure designating means (step C1). Next, the program component selection means selects a predetermined program component from the program component storage means according to the given general processing procedure (step C2). At this time, information on the parameters of the selected program component is supplied to the program component parameter adjusting means.

Next, the program combining means combines the program components selected by the program component selecting means in accordance with the general processing procedure to synthesize a program (step C).
3). The program component parameter adjustment means adjusts the parameters of the components included in the synthesized program in cooperation with the program evaluation means (step C4). At this time, adjustment is performed so that the synthesis program takes the highest evaluation value. Next, it is determined whether or not the termination condition is satisfied (step C5).
And the above series of processing is repeated. If so, the process ends.

Various termination conditions are conceivable. For example, the highest evaluation value of the synthesized program must be equal to or more than a desired reference value, or the number of repetitions of steps C2 to C5 exceeds the upper limit value. Or that the number of programs synthesized by repeating a series of processes exceeds the upper limit.

Next, a specific configuration of each means shown in FIG. 1 will be described.

(Schematic processing procedure designating means 10) The general processing procedure designating means 10 is a means for designating an outline of a processing procedure to be performed by a desired program (this is referred to as a "schematic processing procedure"). A summary table (table) of the outline processing is held in advance, and the list is presented to the operator, and the operator specifies the outline processing and the execution order.

FIG. 3 is a block diagram showing a specific configuration example of the schematic processing procedure designating means 10.

The flowchart editing means 31 is a means for creating and editing a schematic processing procedure of a program to be synthesized on the display terminal 30 as a flowchart.

FIG. 4 schematically shows an example of a man-machine interface screen displayed on the display terminal 30 by the flowchart editing means 31. The operator edits the flowchart on the interface screen using an input device (not shown) such as a mouse provided on the display terminal 30.

For example, the operator operates the mouse to paste a box-shaped symbol 40 representing the outline processing on the edit screen 42, and displays a list 4 of the outline processing for the box-shaped symbol 40.
3. An appropriate general process is selected from 3 and assigned. Each rough processing is registered in advance in the rough processing holding means 32,
Is what is being held.

The execution order of the outline processing is specified by connecting box-shaped symbols with arrows in the execution order.
This operation is the same as the operation for creating a flowchart. Incidentally, a hexagonal symbol 41 in FIG. 4 is a symbol representing a branching process of programming.

(Program Parts Storage Means 12) The program parts storage means 12 has a role of storing program parts by classifying them into parts classifications. Here, the component classification refers to a “viewpoint” or “classification itself” when the program components are grouped into a subset from a specific viewpoint. As one example, there is a component classification for putting together programs having similar functions. Each of the program components includes a program code standardized so as to be used for general purposes, and an attribute of the program code. The attributes of the program code include any information related to the program code, such as the purpose, effect, time required for execution, size, and argument information of the program code.

FIG. 5 is a diagram schematically showing a specific example of the contents held in the program component storage means 12. As shown in FIG. As shown in FIG.
10 and so on. FIG. 7 schematically shows that the program component is constituted by the program code and its attribute as described above.

(Program part selecting means 11) The program part selecting means 11 is a means for selecting a program part corresponding to each general processing constituting the general processing procedure from the program part storing means 12 and supplying it to the program combining means. is there. Note that the effect of the present invention occurs regardless of which program component is selected, so the method of selecting the program component is not particularly limited. For example, a method of selecting a program component based on a random number may be used, or an evaluation value of a program synthesized in the past may be fetched from a program evaluation unit, and a correlation between a high / low evaluation value and a program component used in the program may be obtained. A method of selecting so as to obtain a high evaluation value (described in detail in an embodiment described later) may be used. By the way, when the latter method is used, a program with a gradually higher evaluation value can be synthesized by trial and error.

(Program Combining Means 13) The program combining means 13 combines the program parts according to the execution order of the parts and the argument information of the parts described in the general processing procedure to synthesize a program. Here, "combining program components" means an operation of arranging the program components in accordance with the execution order specified in the general processing procedure and determining a method of setting the value of the argument of the program component.

FIG. 9 is a block diagram showing a specific configuration example of the program combining means 13. As shown in FIG. The program combining unit 13 synthesizes a program from the program component selected by the program component selecting unit and the general processing procedure specified by the general processing procedure specifying unit 10.

The common code holding means 90 holds necessary common program codes such as a function of securing a working memory, a function of loading input data, and a function of outputting a result irrespective of the type of the selected program component.

The common code preparation means 91 reads the contents held by the common code holding means 90 and creates a common part of the program to be synthesized. Next, the program part arranging means 92 arranges the program parts according to the execution order of the program parts specified in the general processing procedure, and creates a different part for each search solution of the source code. Next, the component argument setting means 93 determines a setting method of each argument of the program component. Below, the component argument setting means 9
The method of setting the arguments performed in Step 3 will be described.

There are two ways of setting the argument value: (1) copying the value of another variable, and (2) adjusting the value as a parameter.
One of the setting methods (1) and (2) is specified in the argument information described in the description of (2).

FIG. 8 is a diagram showing an example of the argument information of the program component. As shown in the figure, the input / output type, contents, setting method, and value range are specified for each argument of each program component.

In FIG. 8, "kirsch" is a program part for image processing for detecting an edge of an image by a Kirsch operator, and "lap" is a program part for performing a 3 × 3 Laplacian operation having the same function. “ersrgn” is a component for erasing a region whose area is equal to or smaller than a threshold among connected components in an image. Each of these program parts receives an image, an image width, and an image height as input. Further, the part lap takes an operator selection type as a parameter. That is, the argument name type is a switch indicating which of the three types of Laplacian operator is to be applied, and the row of “value range” in FIG. ing. Also, the part ersrgn is an erasure threshold thre as a parameter.
Take s. This specifies the area threshold value of the connected component to be deleted, and can take a value in the range of 10 to 1000, and the step size is 1.

The operation of the component argument setting means 93 which determines the setting method of each argument according to such argument information will be described in detail with reference to the flowchart of FIG.

The process is repeated for all program components and all their arguments (steps A1, A
2). The order in which the program components are processed starts with the components downstream of the general processing procedure and gradually proceeds to the upstream components. The order of processing is not particularly defined for the arguments of the same program component, but may be processed in the order of the argument information, for example. First, the input / output type of the argument is checked from the argument information (see FIG. 8) (step A3). If the input / output type is “output”, there is no need to determine the setting method, so the processing shifts to the processing of the next argument. Only the argument whose type is “input” is set as a target for determining the setting method, and then the setting method specified in the argument information is checked (step A).
4). If the setting method is "connection", another variable from which the value of the input argument is copied, that is, the output argument of another component is determined (step A5). The variables of the copy source include components executed before the component to be processed (upstream components in the general processing procedure) and those having the same contents as the input arguments to be processed. Select (steps A8, A9). If there is more than one that satisfies this condition, the first found argument is used. The effect of the present invention occurs independently of the method of determining the copy source argument. Therefore, the configuration may be such that the copy source argument is determined according to another method. For example, Japanese Patent Application No. Hei 8-2453
The argument connection method described in the specification of Japanese Patent No. 59 may be adopted.

If the variable from which the value is to be copied is not found, the method of setting the value of the argument to be processed is not determined. Therefore, it is considered that the selection of this program component has failed, and the program is rejected. (Step A1
0).

When the setting method is "parameter", the program component parameter adjusting means 14 adjusts the value later. For this preparation, adjust the argument to be adjusted by adjusting information (list of argument names and possible values).
(Step A6). FIG. 10 is a diagram schematically illustrating the data structure of the adjustment target information. The adjustment target information is a number (parameter number) assigned to each argument for each target argument and a value that the argument can take (adjustment range).
Consisting of This adjustment target information is provided to the program component parameter adjustment unit 14. Also, an argument port for setting the value of the argument from outside is incorporated into the synthesized program (step A7).

Using the specific program components shown in FIG. 8 as an example, how the setting method of the argument value is determined will be described. For example, as for the argument of the component lap for which the Laplacian operation is performed, the first argument ip has a type of “input”, and thus is subjected to the setting method determination processing (step A3).
According to the argument information, since the setting method is “connection”, an output argument of another component from which the value is copied is searched for (step A).
4, A5). In the general processing procedure, an argument of a program component that is executed before the component lap and whose output value is determined and whose contents of the argument information match are searched. Choose from among In the case of image processing, processing proceeds while an image is transferred between program components. Therefore, the output image of the program component executed immediately before the component lap may be copied. Since the type of the next argument jp is "output", the next argument jp
The process proceeds to isx (step A3). Since the type of the argument isx is “input”, the parameter isx is set as a processing target for setting method determination (step A3). Since the setting method is “connection”, the same processing as that of the previously processed argument “ip” is performed. The next argument isy is the same. The next argument type is a processing target for setting method determination. Since the parameter is “parameter” according to the setting method, the parameter is adjusted (step A4).
If this is the first argument to be adjusted, the adjustment target information has a parameter number of “1” and an adjustment range of “1, 2, 3” as shown in FIG. That is, the argument type, which is a parameter, takes one of 1, 2, and 3 as its value. Also, if the combined program includes a part ersrgn (see FIG. 8) for erasing a small area, and the erasure threshold thres, which is a parameter argument thereof, is to be adjusted next to the above argument type, the adjustment is made. The target information has a parameter number of “2” and an adjustment range of “10 to 1000, 1”. In other words, the argument thres, which is a parameter, is a value in the range of the lower limit value 10, the upper limit value 1000, and the step size 1 (10,11,
…, 1000). When a program to be synthesized is described in, for example, the C language, an argument port for externally setting a value of the argument to be adjusted may be prepared as, for example, an argument of a main function (main ()). Alternatively, the program component parameter adjusting means 1
4, the setting value may be stored in a specific file, and the program to be synthesized reads the file and sets the corresponding value to the argument to be adjusted. The code required for this purpose may be stored in the common code holding means 90 described in the description of the program combining means 13.

As described above, the program combining means 1
The operation of 3 completes the program synthesis.

(Program part parameter adjusting means 14)
And the program evaluation means 15) The program component parameter adjustment means 14 adjusts the parameters of the individual program components constituting the program synthesized by the program combination means 13, and the program evaluation means 15 evaluates the adjusted program. Note that the effect of the present invention occurs without depending on the method of adjusting the arguments in the program component parameter adjusting means 13, and the method of adjusting the arguments is not specifically limited.

Hereinafter, as an example of the adjustment method, a case will be described in which an evaluation value obtained by executing a program synthesized with all combinations of parameters is calculated, and the combination of parameter values having the highest evaluation value is used as a final adjustment value. Will be specifically described.

FIG. 12 is a flowchart showing a rough flow of a parameter adjustment and program evaluation process performed jointly by the program component parameter adjustment means 14 and the program evaluation means 15.

First, the program component parameter adjusting means 14 creates a combination of all possible parameter values for all arguments in the adjustment target information created by the program combining means 13 (step B1).

In the repetitive processing, first, one of a set of the synthesized program and its parameter value is supplied to the program evaluation means 15. Program evaluation means 1
5 executes the synthesis program and obtains an evaluation value (step B3). Next, the set of parameter values and the evaluation value of the program are recorded inside the program component parameter adjusting means 14 (step B4).

These processes are performed for all combinations of the parameter values to determine the evaluation value of the program. afterwards,
Based on the recorded contents, a set of the highest evaluation value and the parameter value at that time is determined. This set of parameter values is used as the final parameter adjustment value of the synthesized program (step B5). The highest evaluation value is supplied to the program component selection means 11 as the final evaluation value of the program.

FIG. 13 is a block diagram showing the relationship between the program component parameter adjusting means 14 and the program evaluating means 15 and a specific example of each configuration. The program component parameter adjusting means 14 is a parameter value combining means 1
30 and a parameter value combination holding means 131. On the other hand, the program evaluation unit 15 includes a program execution unit 132, an input holding unit 133, an evaluation value calculation unit 134, and an expected output holding unit 135.

First, the parameter value combination means 130 creates all combinations of possible values for all arguments in the synthesis program with reference to the adjustment target information, and records this information in the parameter value combination holding means 131.

Next, the program executing means gives all the parameter values stored in the parameter value combination holding means 131 to the synthesizing program supplied from the program combining means 13 and executes the synthesizing program. That is, every time one stored combination of parameter values is taken out, the parameter value is set in the argument port (described above) of the synthesis program and the program is executed. Then, the program is stored in the input holding unit 13.
3 is loaded, and the processing result is supplied to the evaluation value calculation means 134. On the other hand, the expected output holding means 135 holds an expected output which is expected to be output when the synthesis program is given predetermined input data.

The evaluation value calculation means 134 takes in the output from the synthesis program supplied from the program execution means 132 and the expected output for the current input data supplied from the expected output holding means 135, and evaluates the synthesis program. Calculate the value and store the parameter value combination holding means 1
31. The parameter value combination holding unit records the combination of the parameter value and the evaluation value in association with each other. When all the evaluation values of the synthesis program for all combinations of the parameter values are determined, the parameter value combination holding unit 131 uses the highest evaluation value recorded as the final evaluation value of the program, and selects the component selection unit 11. To supply.

According to the above-described embodiment, first, a rough processing procedure, which is a rough processing of a program to be synthesized, is specified by the rough processing procedure designating means, and then a predetermined processing is performed according to the given rough processing procedure. The program component is selected by the program component selection means, and information on the parameters of the selected program component is supplied to the program component parameter adjustment means. And
The program combining unit combines the program components selected by the program component selecting unit according to the general processing procedure, and synthesizes the program.

Here, the program part parameter adjusting means adjusts the parameters of the program parts included in the synthesized program in cooperation with the program evaluation means. At this time, adjustment is performed so that the synthesis program takes the highest evaluation value.

According to the program synthesizing apparatus of this embodiment, the selection of the program component is performed by, for example, a search, while the parameter adjustment is performed separately. Therefore, it is possible to avoid that the search solution program converges only to the one made up of the same program parts and only the parameter values are different, and it is possible to synthesize a program using various parts.

The present invention is not limited to the above-described embodiments, but can be implemented with various modifications.

[0065]

As described above, according to the present invention, by selecting a program part by searching and then adjusting the parameters, the search solution program is composed of the same program part and only the parameter value is different. It is possible to provide a program synthesizing apparatus and a program synthesizing method capable of generating a search solution using various components while avoiding convergence of only a part.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a program synthesizing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an overall flow of the program synthesizing apparatus according to the embodiment.

FIG. 3 is a block diagram showing a specific configuration example of a schematic processing procedure designating unit according to the embodiment.

FIG. 4 is a diagram schematically showing an example of a man-machine interface screen displayed on a display terminal by a flowchart editing unit according to the embodiment.

FIG. 5 is a view schematically showing a specific example of contents held in a program component storage unit according to the embodiment.

FIG. 6 is a flowchart showing the operation of a component argument setting unit according to the embodiment.

FIG. 7 is a diagram schematically showing a data configuration of a program component according to the embodiment.

FIG. 8 is a view showing an example of argument information of a program component according to the embodiment.

FIG. 9 is a block diagram showing a specific configuration example of a program combining unit according to the embodiment.

FIG. 10 is a diagram schematically showing a data structure of adjustment target information according to the embodiment.

FIG. 11 is a diagram schematically illustrating an example of data of adjustment target information according to the embodiment.

FIG. 12 is a flowchart showing a rough flow of parameter adjustment and program evaluation processing performed jointly by the program component parameter adjustment unit and the program evaluation unit according to the embodiment;

FIG. 13 is a block diagram showing the relationship between the program component parameter adjustment means and the program evaluation means according to the embodiment, and a specific example of each configuration.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Outline processing procedure designating means 11 ... Program part selection means 12 ... Program part storage means 13 ... Program combination means 14 ... Program part parameter adjustment means 15 ... Program evaluation means 30 ... Display terminal 31 ... Flow chart editing means 32 ... Outline processing retention Means 90 ... Common code holding means 91 ... Common code preparation means 92 ... Parts arrangement means 93 ... Parts argument setting means 130 ... Parameter value combination means 131 ... Parameter value combination holding means 132 ... Program execution means 133 ... Input holding means 134 ... Evaluation value calculation means 135 ... Expected output holding means

Claims (5)

[Claims] A schematic processing procedure designating means for designating a general processing procedure of a target program; a program component storing means for storing a plurality of program components each having a component classification and a parameter; Program component selecting means for selecting a program component; program synthesizing means for synthesizing a target program by combining the program components selected by the program component selecting means in accordance with the general processing procedure; and a target program synthesized by the synthesizing means. And a parameter adjusting means for adjusting the parameters of the individual program components constituting the program synthesizing apparatus. 2. The apparatus according to claim 1, further comprising: an evaluation unit that obtains an evaluation value of the target program for which parameters of the individual program components have been adjusted by the parameter adjustment unit; and wherein the program component selection unit has an evaluation value obtained by the evaluation unit. 2. The program synthesizing apparatus according to claim 1, wherein the program component is selected based on the following. A step of specifying a general processing procedure of a desired program based on the classification of the program parts; a part selecting step of selecting a program part corresponding to the general processing procedure from the plurality of program parts; A combining step of combining the program parts selected in the selecting step to combine a target program; an adjusting step of adjusting parameters of program components incorporated in the target program synthesized in the combining step; and a parameter in the adjusting step An evaluation step of evaluating the performance of the adjusted target program to obtain an evaluation value, repeating the component selection step, the combining step, the adjustment step, and the evaluation step until a predetermined termination condition is satisfied. Execution control step to be executed Program synthesizing method characterized in that comprises a. 4. The program synthesizing method according to claim 3, wherein said component selecting step selects a program component by referring to an evaluation value obtained in said evaluating step. 5. A recording medium storing a program for combining a predetermined program component from a plurality of program components classified in advance to synthesize a desired program, wherein the desired program is classified based on the classification of the program component. Means for designating a general processing procedure, means for selecting a program part corresponding to the general processing procedure from the plurality of program parts, means for combining the selected program parts to synthesize a program, and A storage medium storing a program for executing a means for adjusting parameters of program components included in the combined program; and a means for evaluating the performance of the combined program to obtain an evaluation value.