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Asked: 2026-05-10T13:45:22+00:00

In college I’ve had numerous design and UML oriented courses, and I recognize that

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In college I’ve had numerous design and UML oriented courses, and I recognize that UML can be used to benefit a software project, especially use-case mapping, but is it really practical? I’ve done a few co-op work terms, and it appears that UML is not used heavily in the industry. Is it worth the time during a project to create UML diagrams? Also, I find that class diagrams are generally not useful, because it’s just faster to look at the header file for a class. Specifically which diagrams are the most useful?

Edit: My experience is limited to small, under 10 developer projects.

Edit: Many good answers, and though not the most verbose, I belive the one selected is the most balanced.

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  1. In a sufficiently complex system there are some places where some UML is considered useful.

    The useful diagrams for a system, vary by applicability.
    But the most widely used ones are:

    • Class Diagrams
    • State Diagrams
    • Activity Diagrams
    • Sequence Diagrams

    There are many enterprises who swear by them and many who outright reject them as an utter waste of time and effort.

    It’s best not to go overboard and think what’s best for the project you are on and pick the stuff that is applicable and makes sense.

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