JPH10207943A - Method and device for generating optimum test schedule - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate an optimum test schedule by simultaneously combining and considering numerous test patterns to eliminate a need of inputting again the progress condition of a test corresponding to a real time. SOLUTION: An optimum schedule generator uses an object-oriented expert system and is realized by a computer which reads in a program recorded in a recording medium and has the operation controlled. Post-process DBs 14-1b to 14-nb are provided where information after the end of each test process is recorded with individual parts as objects and with individual test processes as classes. Individual objects have such attributes that times when they are handled in a system are managed as intra-system times, and classes have intra- system times in the same manner, and they are changed to perform simulation where plural times flow in the system, and an optimum schedule is simulated and generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a case where a plurality of test process patterns exist and a plurality of types of components are processed in the same period because a test process is different for each component.
And as the date and time advance, the number of parts to be newly processed,
The present invention relates to an optimum test schedule creation device and an optimum test schedule creation method that are suitable when it is necessary to review the optimum test schedule as needed when the types increase.

[0002]

2. Description of the Related Art In a conventional test schedule creating apparatus,
A schedule was created for a certain process. Further, in the test schedule creation device, when creating an optimal test schedule, it is necessary to input progress information indicating to which test step each component has progressed as input information.

FIG. 4 shows an example of a procedure for creating a schedule in a conventional test schedule creating apparatus. First, a group of target components is selected (step S1), a target test process is selected for the selected target component group (step S2), a target test device is selected (step S3), and assignment test device candidates are selected. Selection (step S4) is performed. Then, the selected target test process, the target test device, and the assignment test device candidate are assigned to the schedule (step S5).

[0004] If there are any other component groups to be tested (step S6), the same procedure as described above is repeated for each target component group, and a schedule is assigned to each target component group. (Steps S1 to S5).

[0005]

In a conventional test schedule creating apparatus, a test schedule for each component is created by the above-described procedure. However, the conventional test schedule creation device has the following problems.

That is, since the test process of each component is different, it is necessary to input the information of the test process for each component to be processed, and to construct the logic for the test process pattern for each component. Must be given to the device. However, there are many test steps,
When an enormous test process pattern can be considered by a combination of these, it has been difficult to determine an optimal test schedule from them and to construct logic for each.

In addition, when a part to be newly processed is added, it is necessary to input the progress of the test.
If the test schedule changes every day, or
In a test process in which a large number of parts are flowing through the test process and it is difficult to grasp the progress information of each component, there is a disadvantage that a huge amount of time must be spent on data entry every time the schedule is reviewed and corrected. Was.

The present invention has been made in view of the above-described circumstances, and considers a huge amount of test processes in combination at the same time, and performs processing for additional parts generated when real time advances. Eliminates the need to re-enter test progress in real time during the procedure
An object of the present invention is to provide an optimum test schedule creation device and an optimum test schedule creation method capable of creating an optimum test schedule.

[0009]

According to the present invention, there is provided an input means for inputting information including at least a date and time when a test of a part to be tested is started at a certain point in time, and the input means for inputting the information. Test equipment master database that records the constraints of the test equipment for testing the parts corresponding to the information, and the test process to be performed for each part to be tested and the test process to be performed for each part A component master database in which the conditions of the test device to be recorded are recorded, and a test process provided in accordance with the number of test processes required for testing the component and recorded in the component master database corresponding to the component to be tested, Selectively used according to the constraints recorded in the test apparatus master database,
A rule means for managing a test for a part, which describes a processing method for each part in the test;
For each component that has completed the test processing by the processing method described in the rule means, at least the time in the system indicating the progress of the test process based on the date and time when the test started from the input means is started. The system is characterized by comprising a process management means having a database after process processing for recording information, and a result output means for outputting a result of a test managed by the process management means.

[0010] With this configuration, the rule means of a plurality of process management means provided in accordance with the number of test steps required for testing a part can perform a test on a part in accordance with the contents of each database. Since it is selectively used, there is no need to prepare logic for continuous test patterns for individual parts,
Processing for a test process corresponding to the test pattern is performed for each component.

Further, since the system time indicating the progress of the test process is managed for each component based on the date and time when the information is input, which is grasped at a certain point in time, the system time for each test process is managed. Can be managed separately),
The progress of the test process for each component can be easily grasped.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the optimum schedule creation device according to the present embodiment. The optimal schedule creation device in the present embodiment is:
It utilizes an object-thinking expert system, and is realized by a computer that reads a program recorded on a recording medium such as a magnetic disk and controls the operation of the program.

As shown in FIG. 1, the optimum schedule creating apparatus according to the present embodiment has an input unit 10, a test apparatus master database (DB) 12a, a parts master database (DB) 12b, and a calendar database (DB) 12
c, a plurality of test process management units 14-1 to 14-n, and a result output unit 16.

The input unit 10 includes a number of parts to be tested, a part number, an arrival date and time of the part, a date and time when the part is required in a later process, and a date and time when the test is started, which is known at a certain point in time. And other data.

The test apparatus DB 12a records the constraint conditions of each test apparatus for performing a test on a component. The component master DB 12b records a test process performed for each component to be tested and a condition of a test apparatus used in the test process performed for each component.

The calendar DB 12c records a calendar that indicates a company operation date, that is, a date on which a test can be performed on a part. Test process management units 14-1 to 14-
n processed the test process for the component in accordance with the contents of the rule portion describing the processing method for each component in each test process, and completed the process in this test process, that is, the process of the rule described in the rule portion. Information on individual parts,
That is, information on the object corresponding to each component and its attribute is recorded in the database after the test process. In addition, the test process management units 14-1 to 14-n add, as one of the attributes, the time required for processing in the corresponding test process to the date and time of the work start date each time an individual component is processed. Have the required time in the system.

For example, the test process management unit 14-1 terminates the process in the test process A, that is, the rule A process, that is, the rule A unit 14-1a describing the processing method for each component in the test process A. A database (DB) 14 after the test process A for recording information on individual parts (information on objects corresponding to individual parts and their attributes).
-1b is provided.

Each of the test process management units 14-2 to 14-n also has a rule unit 14-2a describing a processing method for an individual part in a corresponding test process.
.About.14-na, and a post-termination database (DB) for recording information of individual components (objects corresponding to individual components and information of their attributes) for which rule processing has been completed.
14-2b to 14-nb are provided.

The output unit 16 causes the contents recorded in the database after various tests to be output as an output by, for example, a printer device. In the present invention, information on individual components to be tested is given as attributes of objects, and rules of the rule units 14-1a to 14n-1a of each test process in the test process management units 14-1 to 14-n are defined. , It is routineized by context link (weak binding). The attributes of the object corresponding to each component include, for example, information such as the time in the system, the number of steps to be processed, the number, the date of arrival, and the date of shipment, as shown in FIG.

That is, the optimum test schedule creation device in the present embodiment utilizes an object thinking type expert system, in which individual parts are set as objects, each test process is set as a class, and information after each test process is recorded. DB14-1b to 14-
nb, and each object has an attribute that manages the time at which the object is handled in the system as the system time. Each class also has the same system time, and the system of each class and each object. By changing the internal time individually, by performing a simulation as if a plurality of times flow in the system, the optimum schedule is simulated and created.

Next, a specific configuration of the optimum test schedule creating apparatus according to the present embodiment will be described with reference to FIG. The test process in the present embodiment includes a burn-in process, a baking process, an acceleration test process, a fine leak process, a gross leak process, a thermal shock process,
It is assumed that one step of the function test and two steps of the function test are prepared.

Therefore, as shown in FIG. 3, the optimum test schedule creation device includes an input unit 20, a test device master D
B22a, parts master DB22b, calendar DB22
c, in addition to the result output unit 26, a burn-in process rule unit 24-1a, a DB 24-1b after completion of the burn-in process, and a baking process rule unit 24-2 corresponding to each test process.
a, DB24-2b after completion of the baking process, acceleration test process rule unit 24-3a, DB24-3b after the completion of the acceleration test process, fine leak process rule unit 24-
4a, DB24-4b after finishing the fine leak process,
Gross leak process rule section 24-5a, DB24-5b after gross leak process processing, thermal shock process rule section 24-6a, D after thermal shock process processing
B24-6b, Function test part 1 process rule part 24-7
a, DB 24-7b after completion of one-step processing of functional test, 2-step rule section 24-8a of functional test, 2nd functional test
DB24-8b is provided after the end of the process processing.

Therefore, for example, the burn-in process rule unit 2
4-1a and the DB 24-1b after completion of the burn-in process, a burn-in process management unit configured to perform processing on individual components in the burn-in process according to the processing method described in the burn-in process rule unit 24-1a.
Similarly, the other process rule units 24-2a to 24-8a
And DB24-2b after the end of the corresponding process processing
~ DB24-8b, baking process control unit, acceleration test process control unit, fine leak process control unit, gross leak process control unit, thermal shock process control unit, function test 1 process control unit, function test 2 process control unit (Each management unit is not shown in FIG. 3).

Each of the process rule units 24-1a to 24-
The rule of FIG. 8a is routineized by a context link (weak connection) (a context link is indicated by a broken line in FIG. 3).

Next, the operation in the present embodiment will be described.
This will be described using the optimum test schedule creation device shown in FIG. First, the optimal test schedule creation device creates an object for each component to be tested based on the name, number, and arrival date of each component input from the input unit 20.

Next, a part of the information of the attribute of the object for each part is registered in the part master DB 22b, and the test process to be performed on the part (object) to be tested and the test apparatus used in the test process. Create based on conditions.

As shown in FIG. 2, the objects corresponding to the individual parts include, as attribute information, the time in the system, the remaining processes to be processed (testing processes to be performed), the number,
Information such as the arrival date and shipping date is included.

Next, of all the objects corresponding to the input individual parts, only the objects that need to be subjected to the burn-in process are burn-in process rule units 24-1a.
Flow processing.

Here, those which do not need to perform the burn-in process skip the burn-in process rule section 24-1a and are recorded in the DB 24-1b after the burn-in process is completed (in this case, it is necessary to process the burn-in process). The time in the system, which is one of the attributes of the object, is the arrival date.)

Further, the burn-in process management unit determines the order of processing based on the shipping date, which is one of the attributes of the object for each component, according to the rules of the burn-in process rule unit 24-1a. Then, based on the information recorded in the test apparatus master DB 22a, a combination that can be processed by the same apparatus at the same time is determined in the order of processing.

The burn-in process management unit determines, for an object corresponding to each component that has been processed in accordance with the rules of the burn-in process rule unit 24-1a, the time required for each component to be processed by the test apparatus used in the burn-in process. The waiting time for processing by the test apparatus used in the step is added to the system time, which is one of the attributes of the object, and information indicating that there is no need to perform the burn-in process is newly given as an attribute. After the completion of the process, it is recorded in the DB 24-1b.

Here, the burn-in process management unit uses the time in the system, which is one of the attributes of the burn-in process rule unit 24-1a, every time an individual component is processed, the test apparatus used in the burn-in process. Is obtained by adding the time processed in the above to the date and time of the work start date.

That is, the system time, which is one of the attributes of the burn-in process management unit, is updated as a unique system time by performing the burn-in process. On the other hand, the in-system time, which is one of the attributes of the object for each part, is also updated based on the processing time in the burn-in process and the waiting time in the burn-in process. It will have its own in-system time.

Next, the process proceeds to a baking process.
First, similarly to the processing in the burn-in process management unit, the baking process management unit performs the
Among the objects for the individual parts recorded in 24-1b, those that need to be processed in the baking process and those that do not need to be processed in the baking process are determined, and are stored in the DB 24-1b after the completion of the burn-in process. Read the recorded object for each part.

Next, the baking process management unit records the objects that do not need to be processed in the baking process in the DB 24-2b after the baking process is completed, while the baking process rule unit stores the objects that need to be processed. In the process according to the rule 24-2a, at the time of the system time, which is one of the attributes of the baking process management unit, the DB2
The order of processing is determined based on information on the shipping date, which is one of the attributes of the object for each component, among the objects for each component existing in 4-1b. Then, based on the information indicating the constraint condition of each test apparatus for performing the test on the component recorded in the test apparatus master DB 22a, the processing is performed by the same test apparatus at the same time in the order of processing. Determine and process possible combinations.

Here, the baking process management unit determines the processing time of the baking process and the processing time of the baking process for the processed object for each component in the system time, which is one of the attributes of the object for each component. Add the waiting time. Further, the baking process management unit adds the processing time in the baking process to the system time, which is one of the attributes of the baking process management unit.

In the next routine according to the baking process rule section 24-2a, similarly, in the system time, which is one of the attributes of the new baking process management section, it is recorded in the DB 24-1b after the burn-in process processing is completed. Select the objects to be processed from the objects for each individual part. The baking process management unit performs the baking process on the object corresponding to the selected component as described above.

Hereinafter, the acceleration test process control unit, the fine leak process control unit, the gross leak process control unit, the thermal shock process control unit, the function test first process control unit, and the function test second process control unit are the same as those described above. Then, for the object for the component to be processed, while updating the system time, which is one of the attributes of the object, and updating the system time, which is one of the attributes of each management unit, Of the test process according to the rule section of the above.

In this way, the logic for the continuous test pattern is not constructed for each component, but the remaining components required by each component according to the contents recorded in the component master DB 22b in advance. A test process to be processed is provided, and each time the test process is completed (every time within the system time), each component can execute a process corresponding to the remaining test process to be processed.
In other words, by making the rule part of each test process into a routine by means of a context link (weak connection), the test pattern is changed according to each component, and the test process is performed using the test pattern that is optimal for each component. Can be. Therefore, even if there are a large number of test processes and a huge number of test process patterns can be considered by their combination, it is not necessary to construct logic for each of them.

When the system is operated, in each test process, the time in the system that the process management unit of the process has as an attribute, and the time in the system that the object for each component to be tested has as one of the attributes. Can be independently changed in accordance with the processing according to each rule part, so that a test process can be executed on each object as if a plurality of times were changed in the system. Therefore, since the progress status can be grasped by the time in the system for each component, when a new component to be processed is added, the test schedule is frequently changed, or when a large number of components flow through the test process. Even in such a case, it is possible to easily input the progress of the test for adding a part to be processed.

[0041]

As described in detail above, according to the present invention, an enormous amount of test patterns can be considered simultaneously,
In addition, in the procedure for processing an additional component generated when the real time has advanced, it is not necessary to re-enter the progress of the test corresponding to the real time, and an optimal test schedule can be created. It becomes.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an optimum test schedule creation device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a specific configuration of an optimum test schedule creation device according to the embodiment.

FIG. 3 is a view for explaining attributes of an object corresponding to each component according to the embodiment;

FIG. 4 is a diagram showing an example of a processing procedure for creating a schedule in a conventional test schedule creating apparatus.

[Explanation of symbols]

 Reference Signs List 10 Input unit 12a Test equipment master DB 12b Parts master DB 12c Calendar DB 14-1a Rule A unit 14-1b DB after test process A 14-2a Rule B unit 14-2b DB 14-na after test process B rule x Part 14-nb DB16 after test process x is completed Result output part

Claims (2)

[Claims] 1. An input unit for inputting information including at least a date and time at which a test is to be started on a component to be tested, which is grasped at a certain point in time, and a test is performed on the component corresponding to the information input by the input unit. Test equipment master database that records the constraints of the test equipment to be used, the test process to be performed for each component to be tested, and the conditions of the test equipment used in the test process to be performed for each component. A component master database that is provided according to the number of test processes required for testing the component, and a test process recorded in the component master database corresponding to the component to be tested, and a test process recorded in the test device master database. Is used selectively according to the constraints that have been applied to manage the testing of the parts, Rule means for describing a processing method for each part in the test, and at least the date and time at which the test input from the input means is started for each of the individual parts for which the test processing by the processing method described in the rule means has been completed. A process management unit having a database after process processing for recording information including a time in the system indicating a progress status of the test process as a reference, and a result output for outputting a result of the test managed by the process management unit Means for creating an optimal test schedule. 2. A test apparatus master database for recording a constraint condition of a test apparatus for performing a test on a part corresponding to the information input by the input means, and a test process to be performed on each part to be tested. Record the conditions of the test apparatus used in the test process to be performed on the parts in the parts master database, and enter information including at least the date and time when the test on the parts to be tested is started, which is grasped at a certain point in time, According to the test process recorded in the component master database corresponding to the component to be tested, and selected according to the constraint conditions recorded in the test device master database, according to each test process required for testing the component , For each part that has completed the test processing by the processing method for the individual parts in the test, While recording information including the time in the system indicating the progress of the test process based on at least the date and time when the entered test starts,
A method for creating an optimal test schedule, comprising managing a test on a part and outputting a result of the managed test.