Uml Cheatsheet
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1UML Cheatsheet
UML is a mechanism for communication. It is intended to convey the meaningful parts of your application.
Include the data which will help someone understand your code, not everything must be included (unless it’s an
exam, then include everything).
Representing Classes
The basic method for representing fields and methods is:
Fields:
Methods:
name: Type
name(paramName1: Type, paramName2: Type): returnType
Below is a general template for representing classes, and a small representation of the String class. If you’re
representing an interface, put <<interface>> above the class name, for an abstract class, put the name in italics.
Template:
String Representation:
Arrows:
Inheritance
Interface
Association
Dependency
(is-a)
Implementation
(has-a field,
(depends on,
(is-a)
or has a field that uses
or uses but is
the type as a type
not a field)
parameter)
MessageWithAttachment
SendHandler is-an
MailFrame has-a
MailFrame
is-a Message
ActionListener
MailPanel field
depends-on
Dimension
Two-Way Association
User has a MailBox field AND
MailBox has a User field
Two-Way Dependency
User depends on MailBox AND
MailBox depends on User
(ex. A MailBox method takes a User as a
parameter, or vice versa)
Cardinality
How many items are in a relationship
Say: “A User has one-to-many MailBoxes”
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Parent category: Education