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Introduction,sent the widely varying aspects of a software system (e.g., requirements, data structures, data flows, and information flows) within a single framework using object-oriented concepts. Before we venture too deeply into UML, however, in this chapter we first explain why modeling is an indispensable paAnkylo- 发表于 2025-3-23 19:02:35
A Short Tour of UML, how UML came into being and what the “U” for “Unified” actually means. We then answer the question of how UML itself is defined, that is, where do the rules come from that dictate what a valid model should look like in UML? Furthermore, we outline what UML is used for. Finally, we give a short overRODE 发表于 2025-3-24 01:54:20
The Use Case Diagram, address any realization details such as data structures, algorithms, etc. These details are covered by other diagrams such as the class diagram (see Chapter .) or the interaction diagrams (see Chapter .). The use case diagram also models which user of the system uses which functionality, i.e., it eInfirm 发表于 2025-3-24 03:08:21
The Class Diagram,and the relationships between them do not change over time. For example, students have a name and a matriculation number and attend various courses. This sentence covers a small part of the university structure and does not lose any validity even over years. It is only the specific students and coursuperfluous 发表于 2025-3-24 07:22:28
The Activity Diagram,to implement an activity. In UML 2, activity diagrams use flow-oriented language concepts that find their origins in languages for defining business processes. Activity diagrams are also based on established concepts for describing concurrent communicating processes, such as the token concept of PetFlinch 发表于 2025-3-24 11:51:49
All Together Now,en, we have seen that the diagrams each realize different views of a system. Therefore, the diagrams must be interpreted together as a whole, taking into account how they interact with one another, rather than each one being considered in isolation. They supplement each other by illustrating the syscacophony 发表于 2025-3-24 17:15:16
Further Topics,ed how to apply these concepts to create UML diagrams. The diagrams offer different views of a complex system, providing abstraction mechanisms to make the complexity of the system manageable. With these mechanisms, UML offers a strong basis for many applications and we could fill many pages by lookfigment 发表于 2025-3-24 21:55:46
Textbook 2015 or no modeling or software engineering experience – thus reflecting the majority of students in introductory courses at universities. Using UML, it introduces basic modeling concepts in a highly precise manner, while refraining from the interpretation of rare special cases. .After a brief explanati内阁 发表于 2025-3-25 00:38:22
A Short Tour of UML,e rules come from that dictate what a valid model should look like in UML? Furthermore, we outline what UML is used for. Finally, we give a short overview of all 14 UML diagrams in the current version 2.4.1 of the UML standard specification. These diagrams can be used for modeling both structure and behavior.