Feature Description
What are Assemblies?
Assemblies are hierarchical Objects that allow details from lower-level designs to be inherited into an upper-level design. When calculations are made, the lower level is essentially swapped into the location held by the assembly. Assemblies can be converted from Components, so in the absence of a lower level design there is no need to hold off on modeling.
Assemblies are characterized as being one of three types. Top-down assemblies dictate an interface and the linked design attempts to match it. Bottom-Up assemblies always update to match the linked design. Finally, mixed-mode assemblies allow either top-down or bottom-up behavior to occur on a port-by-port basis. Changes to this behavior can be accomplished through Data Source Administration.
When to Use Assemblies
Assemblies are used to partition a system design into multiple design files. There are many considerations that may drive the way in which a model is hierarchically conceived. Assemblies can be used:
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to represent different levels of indenture within a system design
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to represent different levels of maintenance that must be supported during diagnostics
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to organize the contributions of different individuals/organizations that are responsible for building or modeling different parts of a design
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to create multiple instances of a single (lower-level) design
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to allow lower-level details to be incorporated into an upper-level ("top-down") model that was generated at an earlier point in time
Common Operations on Assemblies
Identification of Selected Assemblies
When an assembly is selected in the main drawing window, the resize handles are now magenta- colored to indicate that the selected object is an assembly.
 Resize HandleHere the Analyst used Magenta color to indicate assembly
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