draw symmetrical sequence diagram online

No two lifeline notations should overlap each other. Each object has a column and the messages exchanged between them are represented by arrows.Ī sequence diagram is made up of several of these lifeline notations that should be arranged horizontally across the top of the diagram. Shows different parts of a system work in a ‘sequence’ to get something done.Ī sequence diagram is structured in such a way that it represents a timeline that begins at the top and descends gradually to mark the sequence of interactions.

In simpler words, a sequence diagram shows how different parts of a system work in a ‘sequence’ to get something done. They illustrate how the different parts of a system interact with each other to carry out a function, and the order in which the interactions occur when a particular use case is executed. Sequence diagrams, commonly used by developers, model the interactions between objects in a single use case. Among the three, sequence diagrams are preferred by both developers and readers alike for their simplicity.

These diagrams are used to illustrate interactions between parts within a system.

There are 3 types of Interaction diagrams Sequence diagrams, communication diagrams, and timing diagrams. In the case of Y-connect loads, the currents in the lines aA, bB, and cC are also the phase currents ( the currents carried by the phase impedances).This sequence diagram tutorial is to help you understand sequence diagrams better to explain everything you need to know, from how to draw a sequence diagram to the common mistakes you should avoid when drawing one. Thus the neutral carries no current in a balanced Y-Y four-wire system.

Draw symmetrical sequence diagram online