From the course: Building a Cloud Architecture Diagram

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UML sequence diagram overview

UML sequence diagram overview

From the course: Building a Cloud Architecture Diagram

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UML sequence diagram overview

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- [Instructor] Sequence diagrams represent interactions between objects or components in a software system, over time. It shows the flow of communication between the different parts of the system and can be helpful to communicate how the system works, especially to a non-technical audience. So we're visualizing the interactions within processes and programs and sometimes across different IT infrastructures. The sequence of interactions is messages and communications between the actors and objects, could be end users and databases, or other external interfaces. Let's take a look at a sequence diagram. On the left, we have the actor, the end user and we've got some other components in this sequence diagram. We have a system log-on process, we have user accounts and we have an online portal. Perhaps this end user wants to go shopping. They will have to identify themselves. They're presented with a log-on dialogue box. They…

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