UML Sequence Diagrams

6. Conclusion

System concepts can be identified by investigating the requirement document which includes: system function, use cases and other initial reports on the domain. A conceptual model show the static view of associations of concepts, they include as shown in Figure: 3.8 above; Concepts, Relationship or association between concepts and Attributes of concepts. The following elements are not suitable in a conceptual model:

• A software artifact, such as a window or a database, unless the domain being modeled is of software concepts, such as a model of a graphical user interface. 
• Operations (responsibilities) or methods.