I believe you are referring to the overall Design Engineering hierarchy for a given product. The design hierarchy consists of the configuration management system; the control over the revisions of the BOM, Assembly Drawings, Schematics, Engineering change control, software revisions, etc, of the top-end product (finished) and going on down to the circuit cards, the components, the pwb, etc. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Deac Descoteaux Sent: Tuesday, December 06, 2005 1:21 PM To: [log in to unmask] Subject: [TN] question Could someone give me "The Reader's Digest" version of "what is a hierarchical Design is???? Thanks, Deac Deac Descoteaux KAW USA, LTD. 39 Simon St. Bldg.#4 Nashua, NH 03060 "Real People .... Real Solutions" Voice: (800) 747-0693 x202 Fax: (603) 881 8763 Cell: (603) 557-7568 Email: deac <mailto:[log in to unmask]> @kaw.com Web: <http://www.kaw.com> www.kaw.com Confidentiality Notice: This email and any accompanying documents contain information that is confidential, privileged or exempt from disclosure under applicable law and is intended for the exclusive use of the addressee. This information is private and protected by law. If you are not the intended recipient, or have received this email in error, you are hereby notified that any disclosure, copying, distribution or use of the contents of this document in any manner is strictly prohibited. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------