Parts list system used for part number management and method for preparing the same

Abstract

A method of preparing parts list system used for part numbers management, composed of a parts table database and a parts list controller. The parts table database includes a parts list which stores a state data and a part number data. The state data indicates a progress state of a part. The part number data includes a number of the part as an identifier. The method comprises preparing a part list storing the state data and part number data, setting the state data to indicate permission to change a part number, assigning a tentative part number, setting the state data after changing design of the part, defining the tentative part number as a normal part number, and checking validation of the tentative part number versus used part numbers and whether the tentative part number complies with predetermined rules for each part number data.

1 . A method of preparing a part list used for part number management in planning and design of parts of a product, the method comprising the steps of:
 preparing a single part list storing state data regarding parts of a product during stages of a parts planning and development process, and storing part number data,   said state data indicates a progress state of each said part during a planning stage, a design stage, and a figure release stage thereof, and   said part number data includes a part number of each said part as an identifier,   each said part number including one of a normal part number data uniquely assigned to said part and a tentative part number data assigned to said part;   setting said state data which indicates permission of change of said part number data;   assigning a tentative part number data serving as said part number data, when said state data indicates the permission of the change of said part number data;   setting said state data which indicates inhibition of the change of said part number data after changing design of said part; and   defining said tentative part number data as a normal part number data;   wherein   said method of preparing said parts list allows unitary management of said part number data continuously during said planning, design and figure release stages.   
   
   
       2 . A method according to  claim 1 , further comprising the step of:
 after assigning said tentative part number data, checking validation of said tentative part number data by comparing said tentative part number data with a previously used part number data.   
   
   
       3 . A method according to  claim 1 , further comprising the step of:
 before defining said tentative part number data as said normal part number data, checking validation of said tentative part number data by checking whether said tentative part number complies with a predetermined setting rule of a part number data.   
   
   
       4 . A method according to  claim 3 ,
 wherein said part includes a master part, which includes a plurality of slave parts, and   the plurality of slave parts,   and said rule includes whether said tentative part number data of said slave part includes a piece of said part number data of said master part.   
   
   
       5 . A method according to  claim 1 , wherein said tentative part number data is assigned when design of said part is changed on a figure of said part linked to said part number data. 
   
   
       6 . A method according to  claim 1 , wherein said single parts list is commonly used for part number management regardless of a progress state of a part. 
   
   
       7 . A method according to  claim 1 , wherein said state data is set for each said part based on a combination of status data of said part and flags pertaining to said part, said status data and said flags are set and updated based on said progress state of said part, and said state data are changed based on change of said combination. 
   
   
       8 . A computer-readable program which prepares a parts list used for part number management in planning and design of parts of a product, the program comprising the operations of:
 preparing a single part list storing state data regarding all parts of a product during stages of a parts planning and development process, and storing part number data,
 said state data indicates a progress state each said part during a planning stage, a design stage, and a figure release stage thereof, and 
 said part number data includes a part number of each said part as an identifier, 
   each said part number including one of a normal part number data uniquely assigned to said part and a tentative part number data assigned to said part;
 setting said state data which indicates permission of change of said part number data; 
   assigning a tentative part number data serving as said part number data, when said state data indicates permission of the change of said part number data;   setting said state data which indicates inhibition of the change of said part number data after changing design of said part; and   defining said tentative part number data as a normal part number data;   wherein   said computer readable program allows unitary management of said part number data continuously during said planning, design and figure release stage.   
   
   
       9 . A computer-readable program according to  claim 8 , further comprising the operation of:
 after assigning a tentative part number data, checking validation of said tentative part number data by comparing said tentative part number data with a previously used part number data.   
   
   
       10 . A computer-readable program according to  claim 8 , further comprising the operation of:
 before defining said tentative part number data as said normal part number data, checking validation of said tentative part number data by checking whether said tentative part number complies with a predetermined setting rule of a part number data.   
   
   
       11 . A computer-readable program according to  claim 10 , wherein said part includes a master part, which includes a plurality of slave parts, and the plurality of slave parts,
 and said rule includes whether said tentative part number data of said slave part includes a piece of said part number data of said master part.   
   
   
       12 . A computer-readable program according to  claim 8 , wherein said tentative part number data is assigned when design of said part is changed on a figure of said part linked to said part number data. 
   
   
       13 . A computer-readable program according to  claim 8 , wherein the single parts list is commonly used for part number management regardless of a progress state of a part. 
   
   
       14 . A computer-readable program according to  claim 8 , wherein said state data is set for each said part based on a combination of status data of said part and flags pertaining to said part, said status data and said flags are set and updated based on said progress state of said part, and said state data are changed based on change of said combination.