Contents
PDM Class #07: PDM Main Functions (3) : Engineering Change Management
in place October 5, 2000, lasted modified October 5, 2000, working
Engineering Change
A set of activities that change the content of parts and their constituent relationships in the product structure, usally in order to enhance the functionality, the quality, the productivity or the maintenability of the product.
Engineering Change Process
see the KEDB Engineering Change Process - It consists of 4 basic sub processes: Problem Identification, Research and Change, Change Review and EC implementation.
Attributes of Engineering Changes (The EC Header)
| Name | Description |
| ID | Identifier or the EC |
| Status | Current Status of EC, it is related to workflows for approval of the EC |
| Type | idicates the type of EC eg. proto EC, pilot EC or urgent EC etc. |
| Cause | cause of EC, eg. quality problem, performance enhance or maintanability etc. |
| Date | date of EC |
| Owner | Creater or the current owner of EC, it is also related to EC |
| Product | The root of the product structure participating to EC |
| Description | Descritpion about EC |
| Technical Info | Related Technical Information |
Attributes of Engineering Changes (The EC History)
| Name | Description | Remarks |
| PART_NO, VERSION, PARENT_PART, PARENT_VER | represents constituent relationship | Comparision Table |
| QTY | number of parts | Comparision Table |
| OPERATION | applied operations | Add, Delete, Replace |
| INTER-OPERABILITY | compatibility between old and new parts | Replace |
A Texanomy of EC
Table: The 3 layered EC model and its properties
| Name | Domain | Description | Department |
| EC of model | The class of the options | New product or new option introduction | Enterprise level including Marketing Steering committee, Marketing |
| EC of option | An instance of option | Enhance existing option, applied to specific products | Manufacturing, Customer Support, Manager from MAG. PCS. |
| EC of assembly | Parts and its constituent relationship | Enhance a part or assembly, should be applied to products through EC of option, engineering knowledge and data is located here. | Manufacturing, Customer Support, Engineering dept.(proto, research) |
An Example Engineering Change
Change of the Product Structure
version up 1650010 --- to 1650010 --A
replace 1650030 --- to 1650030 --A (under 1650010 --A)
replace 1650100 --- to 1650200 --- (under 1650030 --A)
replace 1650010 --- to 1650010 --A (under option 1000 effectivity 100)
replace 1650010 --- to 1650010 --A (under option 1100, effectivity 150)
History of the example engineering change
| EC Type | No |
part |
qty | parent | operation | comp. |
| EC of Option | 1 |
1650010 --- |
1 | OPTION A | Replace | y |
|
1650010 --A |
1 | OPTION A | ||||
| 2 |
1650010 --- |
1 | OPTION A | Replace | y | |
|
1650010 --A |
1 | OPTION A | ||||
| EC of Assembly | 3 |
1650030 --- |
1 | 1650010 --A | Replace | y กก |
|
1650030 --A |
1 | 1650010 --A | ||||
| 4 |
1650100 --- |
1 | 1650030 --A | Replace | n กก | |
|
1650200 --- |
1 | 1650030 --A |
An Example of Engineering Change Object
Engineering Change Info.
| EC ID | EC07 | Status | N |
| Type | ASSEMBLY | Date | 2000.9.12 12:45 |
| Designer | Namchul Do 8723010 | Org. | Engine Design |
| Des | Engineering change for option level | ||
Product Structure Change Info.
ROOT: 16500010 --A wheel
| No | New/Old Part | Operation | |||||||||||||||||||||||||
| Part No | Ver | Name | Parent No | Parent Ver | Parent Name | ||||||||||||||||||||||
| 1 | 16500010 | --A | wheel | 9000 | --- | WHEEL ASSY | REPLACE| old part info | | | | | | 2 | 16500040 | --- | bolt | 9000 | --- | WHEEL ASSY | ADD
| | | | | | | |
Technical Info
Related Docs
 fig1.gif |
data.txt |
Knowledge & Engineering Databases (c) copyright Namchul Do, 2000