A.The sequence of messages between system components

B.The structural relationships between entities

C.The dynamic behavior of a system in terms of states and transitions

D.The interactions and collaborations between objects

A.To represent the flow of control between system components

B.To define a set of operations that can be performed by a block

C.To specify a set of constraints on a system

D.To model the behavior of an object in terms of states and transitions

A.Allocating behaviors to structures

B.Allocating resources to structures

C.Allocating physical to logical structures

D.Allocating activities to sequences

A.To specify the points of interaction between a block and its environment

B.To define a set of operations that can be performed by a block

C.To represent the internal structure of a block

D.To model the behavior of an object in terms of states and transitions

A.Flow model

B.Process model

C.State-transition model

D.Activity model