Sequence Diagram Visual Paradigm Online

Posted : admin On 1/21/2022

Visual Paradigm provides both more formal notation modeling and casual drawing capability. Diagrams under modeling categories such as UML, BPMN, etc. Comes with a data model for further manipulation i.e. Code engineering, syntax & consistency check, etc. Diagram under Casual drawing category provides 150+ types of diagrams charts and business. Jul 14, 2010 An alternative combined fragment is used to specify an area of a group of lifelines/ actors to show conditional flow in a sequence diagram. It also models the if-then-else logic in the sequence diagram. In this article, we will demonstrate how to draw a simple sequence diagram by using an alternative combined fragment. Finding a Free Sequence Diagram Tool? Free web-baed UML drawing tool - Visual Paradigm Online (VP Online) Free Edition. Unlike many other online drawing tools, VP Online has incorporated the Resource Centric interface, which makes Sequence Diagram editing very intuitive and straight forward.

An alternative combined fragment is used to specify an area of a group of lifelines/ actors to show conditional flow in a sequence diagram. It also models the if-then-else logic in the sequence diagram. In this article, we will demonstrate how to draw a simple sequence diagram by using an alternative combined fragment.

  1. Create a sequence diagram as follows:
  2. Select Alt. Combined Fragment in the diagram toolbar. Press on the blank area of the diagram and drag to cover the Person and ATM Machine lifeline.

    Create an alternative combined fragment

  3. Draw a message from ATM Machine lifeline to Person lifeline in the upper compartment of the alternative combined fragment. Name it as Ask for password. Draw another message from ATM Machine lifeline to Person lifeline in the lower compartment of the alternative combined fragment afterwards. Name it as Display invalid card.

    Draw two messages in an alternative combined fragment

  4. Right-click on the combined fragment and select Open Specification… from the pop-up menu to open the Combined Fragment Specification dialog box.
  5. When the Combined Fragments Specification window appears, open the Interaction Operands tab, select Operand, and then click Open Specification… button. In the Interaction Operand Specification dialog box, open the Guard tab and enter Valid card in Constraint text field. Click OK button to confirm the changes.

    Enter Valid card for Operand

  6. Similarly, enter Invalid card in Constraint text field for Operand2by following the previous step.
  7. Guard conditions are displayed in the alternative combined fragment as shown below:

    Guard conditions are displayed

How to try the sample

Sequence Diagram Visual Paradigm Online Diagrams

Sequence diagram visual paradigm online diagram

Visual Paradigm Download Free

Download ATM machine and then unzip it to get the .vpp file.

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Sequence Diagram Visual Paradigm Online Express Edition

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Visual Paradigm Enterprise

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Online Visual Paradigm Tool

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