什么是4GD， What is 4GD? NX9.0有何新的优势？

mildcat

What is 4GD?
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4 k' X& F. w9 R! L8 J% [NX 8.5 introduced the fourth generation of design (4GD) and NX 9 enhances the existing 4GD functionality.
! j4 e6 v' k" D+ x4GD 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 h8 r7 E0 s, r0 T/ ^7 \element is an independently managed occurrence with its own position, access privileges, attributes, revision
history, unit effectivity, and locking status.
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" Z4 F( h) X6 p' E6 F9 I+ g: RThis means that when you check out any design element, it is displayed in its correct product location, without the
need to check out a parent assembly.
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