Glossary of Unified Modeling Language Terms - S

S

• Scenario - a narrative describing foreseeable interactions
• Self-call - a Message from an Object to one of its own Methods
• Sequence diagram - describes the Messages sent between a number of participating Objects in a Scenario
• Signal - an Event which can occur in an Activity diagram in three different ways: as a Time Signal, as a signal which an Activity can listen for and a signal which an Activity can send
• State - an Object exists at one of the States described in a State machine diagram. A state encompasses all the properties of the object along with the values of each of these properties.
• State diagram - synonym for State machine diagram
• State machine diagram - describes the lifetime behaviour of a single Object in terms of in which State it exists and the Transition between those States
• Static attribute - an attribute that does not relate to a specific object but is at class level; that is, an attribute that is common among all objects of that class
• Static modeling - use of class diagrams to describe structure
• Static operation - an operation that does not relate to a specific object but is at class level
• Stereotype - a notation allowing the extension of UML symbols. Some are defined within Profiles. Examples of predefined UML stereotypes are Actor, Exception, Powertype and Utility.
• Structure diagram
• Superstate - construct allowing several States which share common Transitions and Internal Activities
• Swim lane - synonym for Partition
• System model - The logical UML model being represented through one or more UML diagrams