Focus PAD for the Snippet ''an English-language pangram — a sentence that contains all of the letters of the English alphabet'

Gallery
Tutorial
TRAIL: Theory and best practices for the Webel Parsing Analysis recipe for SysMLv1.6+
Section
Topic level
ESSENTIAL
UML keywords
Association
"link" InstanceSpecification
InstanceSpecification
Enumeration
Operation
Connector
State
SysML keywords
Block
part property
SysML Enumeration
ValueType
value property
Keywords
Slide kind
SysML Block Definition Diagram (BDD)
A Block Definition Diagram (BDD) is used as a focus Parsing Analysis Diagram (PAD) for:
Wikipedia: '... an English-language pangram — a sentence that contains all of the letters of the English alphabet. '
Click on the image to view it full size

At least the following Blocks can be immediately elicited from nouns:

- Pangram, English, Language, Sentence, Letter, Alphabet

It seems clear that English is a type of Language. More specifically, it is implied that English is a type of the more abstract AlphabetLanguage, where an Alphabet references one or more Letter (shared aggregation has been used here). A Pangram has at least as many letters as the number of unique letters in theAlphabet it is associated with, and has at least one of each of those letter (this is difficult to express in OCL).

While Generalizations and Associations may be collected as elicited members of a Snippet this can quickly lead to clutter in the /member list display, and has been omitted here.

The analysis has also been supported by an additional Snippet:

Wikipedia: 'The modern English alphabet is a Latin alphabet consisting of 26 letters, each having an upper- and lower-case form.'

In addition to obtaining the multiplicity 26 for the number of letter:Letter with EnglishAlphabet, Partial analysis also yields the following value properties:

- Letter::isUpper:Boolean, Letter::isLower:Boolean

- Alphabet::isLatin[1]:Boolean

- EnglishAlphabet::isLatin[1]:Boolean=true{readonly,redefines isLatin}

A Constraint for isUpper vs isLower could also eventually be included.

The FoxDogPangram is specific to the EnglishAlphabet as a kind of AlphabetLanguage.

Up next
Focus BDD for block EnglishPangram
Notes
[TIP]{EDITORIAL} In Webel Parsing Analysis every Package, Model, or Diagram used to perform Parsing Analysis MUST have the stereotype keyword «pa» applied, and MUST live under a top-level Model or Package 'source' separate from the rest of the project model.
[POLICY, STYLE]{STRICT} Webel «pa» Parsing Analysis Diagrams (PADs) are "scratchpads" used to elicit model elements traceably from text Snippets (extracts from source Documents). While BDDs are a good initial choice, most types of SysML diagram can be used as a «pa» diagram.
[MODELLING, NAMING, POLICY]{STRICT} Webel Parsing Analysis: Acronym: PAD = Parsing Analysis Diagram (may be nearly any diagram type, except those types that must be owned by an elicited model element)
[DISPLAY, MODELLING, POLICY]{STRONG} Webel Parsing Analysis: A "focus" Parsing Analysis Diagram (PAD) for one or more Snippets SHOULD always show the /member tagged value of every Snippet.
[MODELLING, NAVIGATION, PATTERN, TIP, TOOL]{STRONG} Webel: UML/SysML: Navigation: ALWAYS offer a way out of a diagram (usually up a hierarchy, but possibly across) using a navigable symbol (linked to a diagram) and/or a diagram symbol. Avoid "cul-de-sacs"! [But beware of shared package cross-dependencies]
[DISPLAY, STYLE, TIP]{SUGGESTED} Webel Parsing Analysis: If the dashed-line "anchors" from your «snippet» ElementGroup symbols to elicited elements make a «pa» Parsing Analysis Diagram (PAD) too hard to read, try making them light grey using symbol properties.
[MODELLING, NAMING, POLICY]{STRICT} Webel Parsing Analysis: While Generalizations may be collected as elicited members of a Snippet this can quickly lead to clutter in the /member list display.
[MODELLING, NAMING, POLICY]{STRICT} Webel Parsing Analysis: While Associations may be collected as elicited members of a Snippet this can quickly lead to clutter in the /member list display. Often just collecting an end Property as member is sufficient.
[POLICY, STYLE]{STRICT} Webel Parsing Analysis «pa» diagrams are NOT intended as final presentation diagrams! They serve merely to traceably elicit model elements, which may then be shown in other (typically much tidier) presentation diagrams elsewhere.
[TIP]{INFORMATIVE} The Webel Parsing Analysis recipe for SysML1.x does not use the ElementGroup directly, it extends it as a user-defined Snippet stereotype with keyword «snippet» and with MagicDraw Customization.
Snippets (quotes/extracts)
 ... an English-language pangram — a sentence that contains all of the letters of the English alphabet.
 The modern English alphabet is a Latin alphabet consisting of 26 letters, each having an upper- and lower-case form.
  [SysML-1.6] ElementGroup::/member : Element [0..*] Set specifying the members of the group. Derived from Comment::annotatedElement. (derived)
Related slides (includes other tutorials)
Related slides (backlinks, includes other tutorials)
Visit also
Visit also (backlinks)