第四代设计（4GD）管理系统的优势

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4GD has several advantages over previous generations of data management systems:
# D8 K8 m  ?- E% ^. N; u8 ]. q) V• Flexible organization of design data
The collaborative design content can change dynamically as the design evolves.
  f( n' A# R9 v' K" S% VDesigners are not limited to viewing the product in predefined subassemblies.
# \5 p) q7 h* ~  |1 t/ Y9 h• Independent lifecycles
$ X8 k. n! a5 `1 R( [7 Q% d6 I4 cEach design element has its own lifecycle. You are not limited by the lifecycle
of traditional assemblies. Each design element has its revision and status.
. M6 n& b0 q3 x2 x; mLikewise, the CAD design owns its position and geometry.
• Multiple hierarchical views
. D& ?5 h6 N( L& G+ |1 c& `# y. _, d3 H* [0 GIn a traditional product structure, each component is placed in an assembly. To
view a component, you must load its parent assembly. Using 4GD, a design
* f1 y' g# Q& y, }element can appear in multiple partitions and subsets of the product. When
a designer views partitions that may contain the same design element, 4GD
5 h* p* g# W5 J( \' B$ A- zdisplays only the unique design elements.
9 e' S1 [$ x  E" i, x& S2 i• Very large data sets
; x; c6 G( E" h( E" L2 h  LBecause there is no concept of a structure, very large data sets can be managed
8 y: O& o) \1 e  [+ h- t! S5 y1 Aefficiently . Teamcenter loads collaborative designs much more quickly than
traditional assemblies.
6 R6 Z. T) Y( n3 r- \• Minimal data locking
  X3 G" Q9 w) \1 ~0 K! X9 lDesigners check out only the design elements they need. To reposition a design
element, there is no parent assembly to check out and lock.
; ^# m7 Z& V0 K9 z" A  U9 ]• Efficient working sets
Designers can work with adjacent design elements, without having to check out
5 T9 S, e/ j8 B- O) }the next highest parent assembly that contains all the design elements.
• Concurrent work capabilities
! O: a2 d# ?2 t- f/ CBecause designers access the design elements in their workset using a dynamic
9 T8 c$ I9 L7 nrecipe instead of a rigid subassembly, the context of the workset can be updated
. a" Z4 i% s' A1 S6 I9 _5 \" Kto include new design elements created by other designers. For example, if the
recipe searches for all design elements within a spatial volume, reapplying the
2 C2 g- y+ @2 Crecipe opens any new design elements within that volume.