Analisa dan Desain Sistem Berorientasi Objek

Sequence diagram A  sequence diagram  is an interaction diagram that shows how objects operate with one another and in what order. It is a construct of a message sequence chart. A sequence diagram shows object interactions arranged in time sequence. It depicts the objects and classes involved in the scenario and the sequence of messages exchanged between the objects needed to carry out the functionality of the scenario. Sequence diagrams are typically associated with use case realizations in the Logical View of the system under development. Sequence diagrams are sometimes called  event diagrams  or  event scenarios . A sequence diagram shows, as parallel vertical lines ( lifelines ), different processes or objects that live simultaneously, and, as horizontal arrows, the messages exchanged between them, in the order in which they occur. This allows the specification of simple runtime scenarios in a graphical manner. Diagram building blo...

Class diagram In software engineering, a class diagram in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, operations (or methods), and the relationships among objects. The class diagram is the main building block of object-oriented modelling. It is used for general conceptual modelling of the systematic of the application, and for detailed modelling translating the models into programming code. Class diagrams can also be used for data modeling. The classes in a class diagram represent both the main elements, interactions in the application, and the classes to be programmed. In the diagram, classes are represented with boxes that contain three compartments: The top compartment contains the name of the class. It is printed in bold and centered, and the first letter is capitalized. The middle compartment contains the attributes of the class. They are ...

What is an Activity Diagram? An activity diagram visually presents a series of actions or flow of control in a system similar to a  flowchart  or a  data flow diagram . Activity diagrams are often used in business process modeling. They can also describe the steps in a  use case diagram . Activities modeled can be sequential and concurrent. In both cases an activity diagram will have a beginning and an Basic Activity Diagram Notations and Symbols Initial State or Start Point A small filled circle followed by an arrow represents the initial action state or the start point for any activity diagram. For activity diagram using swimlanes, make sure the start point is placed in the top left corner of the first column. Activity or Action State An action state represents the non-interruptible action of objects. You can draw an action state in SmartDraw using a rectangle with rounded corners. Action Flow Action flows, also called edges and paths, illustrat...