Diagrams in Modeling Spaces

List the two most important diagrams in one of the three modeling spaces. The three modeling spaces are: the problem space, the solution space, and the architectural space. Some of the diagrams include: Use case, activity, package, class, sequence, interaction overview, and state machine diagrams. More information can be obtained from chapter three of the book: Software engineering with UML by Unhelkar, B., ISBN 9781138297432. Provide a sample diagram created in Lucidchart (https://www.lucidchart.com/pages/).