In this chapter
Notes
Stereotypes, tagged values, and constraints
Modeling comments
Modeling new building blocks
Modeling new properties
Modeling new semantics
Extending the UML
The UML is made simpler by the presence of four common mechanisms that apply throughout the language: specifications, adornments, common divisions, and extensibility mechanisms. This chapter explains the use of two of these common mechanisms: adornments and extensibility mechanisms.
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These common mechanisms are discussed in Chapter 2 . |
Notes are the most important kind of adornment that stands alone. A note is a graphical symbol for rendering constraints or comments attached to an element or a collection of elements. You use notes to attach information to a model, such as requirements, observations, reviews, and explanations.