什么是4GD， What is 4GD? NX9.0有何新的优势？

mildcat

What is 4GD?
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- A* r0 K5 J$ I1 W; [NX 8.5 introduced the fourth generation of design (4GD) and NX 9 enhances the existing 4GD functionality.
* W9 p  `4 c3 V3 q# |4GD represents a major change in how NX product assemblies are stored and managed in Teamcenter, and how they
are checked out and used in NX.
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In 4GD, design elements replace traditional assembly components. Unlike assembly components, each design
2 n' Q* {0 V! k' f( Belement is an independently managed occurrence with its own position, access privileges, attributes, revision
+ o2 R0 E0 B/ `. dhistory, unit effectivity, and locking status.
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This means that when you check out any design element, it is displayed in its correct product location, without the
6 w8 R( C' `9 Z- G4 c) fneed to check out a parent assembly.

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