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"Sequence diagram is the most common kind of interaction diagram, which focuses on the message interchange between a number of lifelines.
Sequence diagram describes an interaction by focusing on the sequence of messages that are exchanged, along with their corresponding occurrence specifications on the lifelines.
The following nodes and edges are typically drawn in a UML sequence diagram: lifeline, execution specification, message, combined fragment, interaction use, state invariant, continuation, destruction occurrence." [uml-diagrams.org/ sequence-diagrams.html]
The template "UML sequence diagram" for the ConceptDraw PRO diagramming and vector drawing software is included in the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ software-uml
UML sequence diagram
UML sequence diagram, UML sequence diagram symbols, lifeline, execution occurrence, actor
Used Solutions

Diagramming Software for designing UML Sequence Diagrams

Sequence Diagrams shows how objects communicate with each other in terms of a sequence of messages. Also indicates the lifespans of objects relative to those messages.

UML Sequence Diagram

UML Sequence Diagram can be created using ConceptDraw DIAGRAM diagramming software contains rich examples and template. ConceptDraw is perfect for software designers and software developers who need to draw UML Sequence Diagrams.

UML Sequence Diagram. Design Elements

UML Sequence Diagram shows object interactions arranged in time sequence, how processes operate with one another and in what order and illustrate the sequence of messages exchanged between the objects and classes involved in the scenario.

Sequence Diagram Tool

ConceptDraw DIAGRAM diagramming and vector drawing software as a sequence diagram tool provides the Rapid UML Solution from the Software Development Area that contains the UML Sequence library.
The vector stencils library "UML sequence diagrams" contains 50 symbols for the ConceptDraw PRO diagramming and vector drawing software.
"Sequence diagram ... building blocks.
If the lifeline is that of an object, it demonstrates a role. Note that leaving the instance name blank can represent anonymous and unnamed instances.
Messages, written with horizontal arrows with the message name written above them, display interaction. Solid arrow heads represent synchronous calls, open arrow heads represent asynchronous messages, and dashed lines represent reply messages. If a caller sends a synchronous message, it must wait until the message is done, such as invoking a subroutine. If a caller sends an asynchronous message, it can continue processing and doesn’t have to wait for a response. Asynchronous calls are present in multithreaded applications and in message-oriented middleware. Activation boxes, or method-call boxes, are opaque rectangles drawn on top of lifelines to represent that processes are being performed in response to the message (ExecutionSpecifications in UML).
Objects calling methods on themselves use messages and add new activation boxes on top of any others to indicate a further level of processing.
When an object is destroyed (removed from memory), an X is drawn on top of the lifeline, and the dashed line ceases to be drawn below it (this is not the case in the first example though). It should be the result of a message, either from the object itself, or another.
A message sent from outside the diagram can be represented by a message originating from a filled-in circle (found message in UML) or from a border of the sequence diagram (gate in UML)." [Sequence diagram. Wikipedia]
The example "Design elements - UML sequence diagrams" is included in the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.
UML sequence diagram symbols
UML sequence diagram symbols, unknown participant, unspecified participant, stop, state invariant, continuations, port, note, message default, lost message, lifeline, entity, lifeline, control, lifeline, boundary, lifeline, actor, lifeline, interaction use, initiator, gate, found message, execution occurrence, combined fragment,
Used Solutions

Basic Flowchart Symbols and Meaning

Flowcharts are the best for visually representation the business processes and the flow of a custom-order process through various departments within an organization. ConceptDraw DIAGRAM diagramming and vector drawing software extended with Flowcharts solution offers the full set of predesigned basic flowchart symbols which are gathered at two libraries: Flowchart and Flowcharts Rapid Draw. Among them are: process, terminator, decision, data, document, display, manual loop, and many other specific symbols. The meaning for each symbol offered by ConceptDraw gives the presentation about their proposed use in professional Flowcharts for business and technical processes, software algorithms, well-developed structures of web sites, Workflow diagrams, Process flow diagram and correlation in developing on-line instructional projects or business process system. Use of ready flow chart symbols in diagrams is incredibly useful - you need simply drag desired from the libraries to your document and arrange them in required order. There are a few serious alternatives to Visio for Mac, one of them is ConceptDraw DIAGRAM. It is one of the main contender with the most similar features and capabilities.
How to Build a Flowchart
How to Build a Flowchart
This vector stencils library contains 32 SysML symbols.
Use it to design your sequence diagrams using ConceptDraw PRO diagramming and vector drawing software.
"A sequence diagram shows, as parallel vertical lines (lifelines), different processes or objects that live simultaneously, and, as horizontal arrows, the messages exchanged between them, in the order in which they occur. This allows the specification of simple runtime scenarios in a graphical manner. ...
If the lifeline is that of an object, it demonstrates a role. Leaving the instance name blank can represent anonymous and unnamed instances.
Messages, written with horizontal arrows with the message name written above them, display interaction. Solid arrow heads represent synchronous calls, open arrow heads represent asynchronous messages, and dashed lines represent reply messages. If a caller sends a synchronous message, it must wait until the message is done, such as invoking a subroutine. If a caller sends an asynchronous message, it can continue processing and doesn’t have to wait for a response. Asynchronous calls are present in multithreaded applications and in message-oriented middleware. Activation boxes, or method-call boxes, are opaque rectangles drawn on top of lifelines to represent that processes are being performed in response to the message (ExecutionSpecifications in UML).
Objects calling methods on themselves use messages and add new activation boxes on top of any others to indicate a further level of processing.
When an object is destroyed (removed from memory), an X is drawn on top of the lifeline, and the dashed line ceases to be drawn below it (this is not the case in the first example though). It should be the result of a message, either from the object itself, or another.
A message sent from outside the diagram can be represented by a message originating from a filled-in circle (found message in UML) or from a border of the sequence diagram (gate in UML)." [Sequence diagram. Wikipedia]
The vector stencils library "Sequence diagram" is included in the SysML solution from the Software Development area of ConceptDraw Solution Park.
Sequence diagram
Sequence diagram, sequence diagram,
Lifeline
Lifeline, lifeline,
Execution specification
Execution specification, execution specification,
Execution specification 2
Execution specification 2, execution specification,
Interaction use
Interaction use, interaction use,
Combined fragment
Combined fragment, sequence diagram, message, lifeline, combined fragment, alternative combined fragment, interaction operator alt, alternatives,
Combined fragment - Weak sequencing
Combined fragment - Weak sequencing, weak sequencing combined fragment, interaction operator seq,
Combined fragment - Alternatives
Combined fragment - Alternatives, alternative combined fragment, interaction operator alt, alternatives,
Combined fragment - Option
Combined fragment - Option, option combined fragment, interaction operator opt,
Combined fragment - Break
Combined fragment - Break, break combined fragment, interaction operator break,
Combined fragment - Parallel
Combined fragment - Parallel, parallel combined fragment, interaction operator par,
Combined fragment - Strict sequencing
Combined fragment - Strict sequencing, strict sequencing combined fragment, interaction operator strict,
Combined fragment - Loop
Combined fragment - Loop, loop combined fragment, interaction operator loop,
Combined fragment - Critical region
Combined fragment - Critical region, critical region combined fragment, interaction operator critical,
Combined fragment - Negative
Combined fragment - Negative, negative combined fragment, interaction operator neg,
Combined fragment - Assertion
Combined fragment - Assertion, assertion combined fragment, interaction operator assert,
Combined fragment - Ignore
Combined fragment - Ignore, ignore combined fragment, interaction operator ignore,
Combined fragment - Consider
Combined fragment - Consider, consider combined fragment, interaction operator consider,
State invariant / Continuations
State invariant / Continuations, continuation, state invariant,
Coregion
Coregion, coregion,
Creation event
Creation event, message, lifeline, execution specification, creation event,
Destruction event
Destruction event, message, lifeline, execution specification, destruction event,
Duration constraint
Duration constraint, duration constraint,
Duration observation
Duration observation, duration observation,
Time constraint
Time constraint, time constraint,
Time observation
Time observation, time observation,
Message, asynchronous signal
Message, asynchronous signal, asynchronous signal, message,
Message, synchronous call
Message, synchronous call, synchronous call, message,
Reply message
Reply message, reply message,
Lost message
Lost message, lost message,
Found message
Found message, found message,
General ordering
General ordering, general ordering,
Used Solutions

Design Elements for UML Diagrams

The Rapid UML solution from Software Development area of ConceptDraw Solution Park includes 13 vector stencils libraries for drawing the UML 2.4 diagrams using ConceptDraw DIAGRAM diagramming and vector drawing software.

Memory Object Diagram

The vector stencils library UML Object Diagram from the solution Rapid UML contains UML specific symbols such as object symbol, association symbols, link symbols, operation symbols for ConceptDraw DIAGRAM diagramming and vector drawing software. The Rapid UML solution is contained in the Software Development area of ConceptDraw Solution Park.