: For verifying the correctness of diagram standards from that era, the UML 2.5.1 specification , released in December 2017, is the authoritative reference.

If your intent was to a UML diagram using text-based tools (as hinted by "create an text"):

: Often integrated into wikis and documentation (like Azure DevOps Markdown ), this allows you to render diagrams directly from text in your code files. AI responses may include mistakes. Learn more Markdown Syntax for Files, Widgets, Wikis - Azure DevOps

: The Object Management Group (OMG) provides resources for UML certifications that include practice questions and correct interpretations of model diagrams.

: A free tool that specifically lets you create sequence and activity diagrams from plain text.

Since this is a specific archival file name, it is likely hosted on student portals or university-specific resource sites rather than a single global source. Related Resources