$1)\_\_\_\_\_\_\_\_\_$ are used to capture the requirements of a system and also can be used tospecify the context of a system$\mathrm{.}2)$ In use case diagrams$\_\_\_\_\_\_\_\_\_\_\_\_$ relation means that use case is optional and comes after the base use case$\mathrm{.}3)\_\_\_\_\_\_\_\_\_\_\_\_$ It is an association that represents a part$-$whole or part$-$of relationship$4)\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ are used to derive the interactions, relationships, and methods of the objects in the system $5)$ Sequence diagrams and$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ can be used to model the behavior of data driven systems Generalization $/$ Flow chart $/$ Use case diagram$($s$)/$ include $/$ DFD diagram$($s$)/$Statechart diagrams$)/$ Sequence diagram$($s$)/$ Class diagram$($s$)/$ Communication diagram$($s$)/$ Aggregation $/$ extend $/$ Context $/$ Activity diagram$($s$)/$ Specialization $/$ states