The main difference between communication diagrams and sequence diagrams is that sequence diagrams are good at showing sequential logic but not that good at giving you a "big picture view" whereas communication diagrams are the exact opposite
State diagram represents behavior without noting the classes involved whereas sequence diagram represents behavior, by describing how classes move from state to state
The purpose of a data flow diagram is to show you how the data flows through an information system. A sequence diagram shows you information regarding how the processes work together and in what order they operate.
Activity diagram shows the work flow from start point to the end point detailing many decision points. Sequence shows detail flow of specific use case and it also shows interaction between actors, system and system components
It is a hybrid between Use Case and Sequence Diagram
There is no difference...same thing
The difference between a graph and a diagram is as follows: a diagram is a chart which shows a drawing and a graph is a graph with lines or bars indicating something specific in numbers.
airline reservation system sequence diagram
Communication Diagram in UML 2.x - which was called Collaboration Diagram in UML 1.x - is interaction diagram which shows interactions between objects and/or parts (represented as lifelines) using sequenced messages in a free-form arrangement.Communication diagram corresponds (could be converted to/from or replaced by) to simple sequence diagram without structuring mechanisms such as interaction uses and combined fragments.
google sequence diagram object constructor
A sequence diagram in a Unified Modeling Language (UML) is a kind of interaction diagram that shows how processes operate with one another and in what order. It is a construct of a Message Sequence Chart. A sequence diagram shows object interactions arranged in time sequence. It depicts the objects and classes involved in the scenario and the sequence of messages exchanged between the objects needed to carry out the functionality of the scenario. Sequence diagrams typically (but not always), are associated with use case realizations in the Logical View of the system under development.
In a sequence diagram, the word "message" would most likely appear, as it represents the communication between objects or components over time. Sequence diagrams illustrate the order of these messages exchanged, showing how participants interact during a specific scenario. Other common terms include "actor," "lifeline," and "activation," which help depict the structure and flow of interactions.
difference between cross section and block daigram