JPS61279927A - Parts list control system - Google Patents

Abstract

PURPOSE:To decrease the quantity of the control data, the number of control processes of a parts list and the number of replacement errors, by controlling the item information, the item constitution information and the specification- based constitution information indepentently of each other. CONSTITUTION:The parts list development information on the number of an item A, the specifications X, etc. is supplied to a part list retrieving part 5 from outside. The item information is retrieved out of an item construction information storage part 3. It is checked through a specification-based constitution information storage part 4 whether the constitution information is effective or not with the specifications X. Then a desired parts list is obtained at parts retrieving part 5. Thus the duplication of control items can be avoided by controlling the item information, the item constitution information and the specification-based constitution information independently of each other.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a management system for a bill of materials whose specifications are subject to frequent changes.

(Prior Art) A parts list is an information list of parts necessary to construct one article. Although the bill of materials differs depending on the specifications of the article, it is common practice to establish a standard specification for one article and then create a bill of materials as the specifications are changed.

FIG. 4 shows examples of parts lists with various specifications. A parts list 41flA is a standard specification parts list for an article, which is composed of a standard specification article AH, articles B and C, and an article BH and further consists of D. Article A with X, Y, and Z specifications is derived as a modification from this standard specification. In the X specification, the article BE is further added with the article E as a component, and in the Y specification, it is not used for the article D, and the composition information of the article C that constitutes the article Ai is different in the two specifications (for example, the number of used articles are different). However, in the conventional parts list management method, dedicated parts lists 41, 42, 43, and 44 in Fig. 4 are created and updated every time specifications are changed.

There is a problem in that there are many duplications in the ninth management item, which targets all of the parts lists 41 to 44 shown in Figure 4, and the amount of data is large. In other words, in Figure 4, there are 4 pieces each for item B, work C (hereinafter, following the convention of parts lists, the word ``article'' is expressed as item), 3 pieces for each item, and 4 pieces for structure gA-H. , same A-C and B
-DiC has three duplicates each.

Well, if such a duplicate part is updated, all the parts lists that use it must be updated, which increases the amount of man-hours required to manage the parts list and increases the possibility of updating errors. There is a point.

Therefore, in the present invention, item information, item configuration, and specification-specific configuration information are managed separately, and the amount of management data is reduced, thereby providing a parts list management method with fewer management steps and fewer update errors. be.

(Defined Means for Solving Problems) The method of the present invention includes an item information storage means for storing unique information of a plurality of items constituting a parts list, and an item configuration information storage for storing configuration information among the items. means, and specification-specific configuration information storage means for storing specification condition information of the configuration information;
a parts list updating means for updating corresponding information in the item information storage means, the item configuration information storage means, and the specification-based configuration information storage means based on update information of the parts list provided by an external device; In response to a parts list creation instruction given from the above, the corresponding information is retrieved from the information stored in the item information storage means, the item configuration information storage means, and the specification-specific configuration information storage means, and the required parts list is created. and a parts list search means to be created.

(Example) Next, embodiments of the present invention will be described with reference to all the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. Is the bill of materials dependent on the bill of materials update information given from the outside in the bill of materials management man-hours shown in Figure 1? A parts list updating unit 1 updates each component information, an item information storage unit 2 stores item information in the parts list, an item configuration information storage unit 3 stores item configuration information in the parts list, and It is comprised of a specification-specific configuration information storage section 4 that stores specification-specific configuration information and a parts list search section 5 that searches for a corresponding parts list in response to external requests.

Item information is unique information about the item itself, such as item number, item name, time required for manufacturing, etc.

Item structure information is unique information about the parent-child relationship between items, such as parent item number, child item number, quantity relationship, etc.
This is data regarding the validity period, etc.

Specification-specific configuration information and specification condition data regarding item configuration information include, for example, data regarding the presence or absence of parent-child relationships between items, changes in quantity relationships, changes in validity periods, etc. for each specification.

The above item information and item configuration information are stored in the parts list update section 1.

In response to the input of update information regarding at least one of the specification-specific configuration information, the corresponding information is registered, changed, and deleted, and in addition, the known memory contents are continuously stored,
Writing is performed using a two-part writing technique.

FIG. 2 shows a parts list diagram of the example of FIG. 4 according to the present embodiment VC. The five items from ■ to ■ are stored in the item information storage unit 2, and the five item configuration information from ■-[phase] configuration information 21 to ■-◎ configuration information 25 is stored in the item configuration information storage unit 3.
In addition, information such as configuration information 26 to 29 by specification is stored in the configuration information storage unit 1 4 by specification.

Next, regarding the operation of the parts list search unit 5 that creates a required parts list from the above item information, item configuration information, and specification-specific configuration information, the block diagram in Fig. 1, the parts table diagram in Fig. 2, and the lE
The case of the X specification will be explained as an example with reference to the flowchart shown in FIG.

First, in order to develop the item At1-X specifications, the parts list development information such as the item number of the item, specification
(step 30). Next, item information storage section 2
The item information is searched from step 31), and the first child structure information of the searched item is searched from the item structure information storage section 3 (step 32). In other words, item AK has configuration information 21.24 and 25, and the first configuration information 21 is searched (YB6 branch of step 33), and this configuration information 21 is
Search the specification-specific configuration information storage unit 4 to determine whether the specification is valid or not (Step 34), and if it is found to be valid (YB6 branch of Step 35), obtain B't-, which is a child item for item AJC (Step 34). 36).

Next, step 31, 32, 33vc first searches for the configuration information 22t for item B, and from the specification-specific configuration information 26 for this configuration information 22 (step 34), it is determined that the configuration information 22 is valid in the X specification. Obviously step 35) to item D1: obtain.

Next, since there is no child composition information for the item number (Step 3
3), to search the item's parent item information from the item configuration information storage unit 3; step 38), search for the parent item B, and search for this item B.
Step 39) to search for the next configuration information following configuration information 22, find configuration information 23 (YB6 branch of step 33), and find that this is valid for the specification X specification. 35 YES
Search for item Ai, search all of the next child configuration information for item person, and search for configuration information 241 (YB in step 33).
6 branch), this is found to be invalid in the X specification according to the configuration information 28 by specification. It is found to be valid and item C is obtained (step 36). Since item C1Cf1 does not have a child structure (step 33), it now returns to the friend item person, and item AK is no longer a child structure, so the expansion is completed (YB6 branch of step 37).
A bill of materials for specifications can be output.

(Effects of the Invention) By separately managing RCA item information, item configuration information, and specification-based configuration information, the amount of data can be reduced, reducing the number of man-hours for managing the bill of materials and reducing errors in updating the bill of materials. It has the effect of being able to.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention. Figure gg2 is a parts list diagram according to Figure 1 VC, l! FIG. 3 is a diagram showing examples of parts lists according to various specifications in the 70-chart of the parts list search section in FIG. 1... Parts list update section, 2... Item information storage section, 3... Item configuration information storage section, 4...
...Specification-specific configuration information storage unit, 5...Parts list search unit, 21-25...Configuration information, 26-29.
...Configuration information by specification, 30-39...Step % 41-44...Specification side 'parts list'. Mine 1 Betsumine 2 buttons! 5th century

Claims (1)

[Scope of Claims] Item information storage means for storing unique information of a plurality of items constituting a bill of materials; Item configuration information storage means for storing configuration information among the items; Specification condition information for the configuration information. and updating corresponding information in the item information storage means, the item configuration information storage means, and the specification-specific configuration information storage means in accordance with update information of the parts list provided from the outside. and a parts list updating means for performing the above, and in response to a parts list creation instruction given from the outside, the parts list is updated from information stored in the item information storage means, the item configuration information storage means, and the specification-based configuration information storage means. A parts list management method comprising: a parts list search means for searching information and creating a required parts list.