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One Model, Many Interests, Many Views
Nodes on a BDD represent constraints (the equations governing the system and the corresponding
parameters) as well as their connection points (design parameters on elements in the system
architecture). Most frequently, the design parameters are associated with the physical architecture
(components and links) or behavioral architecture (functions), but they can be drawn from anywhere
in the descriptive system model. Nodes display the element name, the constraints (the equations that
govern the analytics), and the parameters (the design values of interest).
Constraint BDDs are a rather clean representation of constraints and the manner in which they connect
to the physical and logical dimensions of the architecture aspects. Their technical depth makes them
well suited for engineers and other subject matter experts. While they are a useful representation, the
hierarchical tree structure does not strongly convey the nature and complexity of the interactions. The
parametric diagram often does a much better job of visually representing the lines of convergence and
divergence to identify critical parameters in your model.
Mapping for the Constraint Block Definition Diagram