Figure D.24 - Defining Fuel Flow Constraints (Parametric Diagram) [ANNOTATED]

Gallery
Tutorial
TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]
Section
Section: SysML-1.6: HSUV sample
SysML keywords
ConstraintBlock
BindingConnector
constraint property
SysML Parametric Diagram
NestedConnectorEnd
Slide kind
SysML Parametric Diagram
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Figure D.25 - Detailed Internal Structure of Fuel Delivery Subsystem (Internal Block Diagram)
Notes
[ISSUE] SysML-1.6: Figure D.24 does not explicitly show «equal» keyword or '=' on BindingConnectors [suggest this might be good to show this notation on at least one HSUV sample diagram]
[NAMING, POLICY]{STRICT} DO NOT use spaces in Property names or Class/Block names! If you want to communicate familiar names of elements within an organisation use a custom stereotype and tagged values (such as 'aka')!
[CAPABILITY, FEATURE, TIP, TOOL] In MagicDraw/Cameo an assigned stereotype of a Classifier that types an instance-like element (such as a part Property) "shines through" unless it has an instance-level stereotype assigned. This is sometimes called a "secondary stereotype".
[ASSERTION, TOOL] SysML: The «system», «subsystem», «external», «domain» and «system context» keywords are for "user defined" block Stereotypes (they are not part of core SysML); they are supported in MagicDraw/Cameo as Non-Normative Extensions.
[NAMING, POLICY]{STRICT} SysML: Naming: Always use either anonymous or first letter lower case for Property, ObjectNode and InstanceSpecification names; no exceptions (unless using names to "quote text")! Valid: 'lowerCamelCase' OR 'tla' vs TLA acronym OR 'uCC' vs UpperCamelCase
[ISSUE, NAMING] SysML-1.6: Naming inconsistencies 'Figure D.24 is a parametric diagram showing how fuel flowrate is related to FuelDemand and FuelPressure value properties.'
[TOOL] MagicDraw/Cameo: HOWTO Create a nested Property "shortcut" symbol with a dot property path in a Parametric Diagram or Internal Block Diagram
Snippets (quotes/extracts)
  [SysML-1.6] Figure D.24 is a parametric diagram showing how fuel flowrate is related to FuelDemand and FuelPressure value properties.
  [SysML-1.6] A Binding Connector is a connector which specifies that the properties at both ends of the connector have equal values.
  [SysML-1.6] If the properties at the ends of a binding connector are typed by a ValueType, the connector specifies that the instances of the properties shall hold equal values, recursively through any nested properties within the connected properties.
  [SysML-1.6] A constraint property is a property of any block that is typed by a constraint block. It holds a localized usage of the constraint block. Binding connectors may be used to bind the parameters of this constraint block to other properties of the block ...
  [SysML-1.6] Binding connectors, as defined in Clause 8 are used to bind each parameter of the constraint block to a property in the surrounding context.
  [SysML-1.6] A parametric diagram is defined as a restricted form of internal block diagram. A parametric diagram may contain constraint properties and their parameters, along with other properties from within the internal block context.
  [SysML-1.6] All properties that appear, other than the constraints themselves, shall either be bound directly to a constraint parameter, or contain a property that is bound to one (through any number of levels of containment).
  [SysML-1.6] A constraint property may be shown on a parametric diagram using a rectangle with rounded corners. This graphical shape distinguishes a constraint property from all other properties and avoids the need to show an explicit «constraint» keyword. Otherwise..
  [SysML-1.6] A property name shown inside or outside the property box may take the form of a multi-level name. This form of name references a nested property accessible through a sequence of intermediate properties from a referencing context.
  [SysML-1.6] The name of the referenced property is built by a string of names separated by “.”, resulting in a form of path name that identifies the property in its local context.
  [SysML-1.6] A constraint block is defined by a keyword of «constraint» applied to a block definition. Properties of this block define parameters of the constraint, with the exception of properties that hold internally nested usages of constraint blocks.
  [SysML-1.6] The usage of a constraint block is distinguished from other parts by a box having rounded corners rather than the square corners of an ordinary part.
  [SysML-1.6] A parametric diagram is a restricted form of internal block diagram that shows only the use of constraint blocks along with the properties they constrain within a context.
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Related slides (includes other tutorials)
Related slides (backlinks, includes other tutorials)
Useful "user-defined" stereotypes for Blocks: «system context», «system», «subsystem», «external», «domain»