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OMG-OCUP2-FOUND100 Exam Questions
- Topic 1: Class Diagram: This topic focuses on class diagrams that depict classes, their attributes, operations, and the relationships between them.
- Topic 2: Activity Diagram: Activity Diagram illustrates workflows and processes. It also shows the steps involved in a process, the sequence of these steps, and the conditions that trigger each step.
- Topic 3: Sequence Diagram: Interactions between objects over time are depicted in this diagram. This diagram shows messages exchanged between objects and the sequence of these messages.
- Topic 4: Why We Model: This topic covers software modeling and its benefits. It also explores the necessity of modeling in software development.
- Topic 5: State Machine Diagram: It illustrates the state transitions of an object in response to events. This diagram also shows different states, events, and actions.
- Topic 6: Object Diagram: A specific instance of a class diagram is depicted in this diagram. It not only discusses the objects in a system but also focuses on relationships between them at a particular point in time.
- Topic 7: Package Diagram: Related model elements are grouped together in it. The diagram is helpful in organizing and managing complex UML models.
- Topic 8: Use Diagram: The interactions between actors, systems, and use cases are depicted in this diagram. It shows the functionality of a system from the perspective of a user.
Free OMG OMG-OCUP2-FOUND100 Exam Actual Questions
Note: Premium Questions for OMG-OCUP2-FOUND100 were last updated On Apr. 27, 2026 (see below)
Choose the correct answer:
Consider the following diagram:
Which change could the modeler make to fix the UML error in this model?
In the UML diagram given, we see two classes, ClassA and ClassB, with ClassB inheriting from ClassA. ClassA has two attributes, position of type Integer and description of type String. ClassB introduces an additional attribute, version of type Real.
Looking at the instance specifications (the right part of the diagram), we have three instances: a1 of type ClassA, b1 of type ClassB, and b2 also of type ClassB.
In UML, an instance specification must comply with the structure of its classifier, which means an instance of ClassA must show slots for both position and description, whereas an instance of ClassB must show slots for position, description, and version.
In the provided diagram, instance a1 of ClassA only shows a slot for position. This is an error because it does not show a slot for description, which is a defined attribute of ClassA. To correct this error, we would need to add a description slot to a1.
This means that the correct answer is:
B . Add a description slot to a1.
The other options do not correct the error in the model:
A) Specifying unique values for position does not address the missing description slot in a1. C) Changing the type of ClassB.version from Real to Integer is not required by any UML constraint in the context given. D) Changing the type of ClassA.position from Integer to Real does not address the missing description slot in a1 and is unrelated to the inheritance structure.
Choose the correct answer:
Which statement is true about the following diagram?
The diagram likely represents a UML activity diagram, which is used to model the workflow of a system. The correct answer is D because it reflects the behavior of decision nodes and concurrent flows in UML activity diagrams.
In UML, when an activity reaches a decision node (depicted as a diamond), it chooses one among several alternative flows. In this case, after the completion of action A, the flow must decide between B or D, but not both, which is a fundamental aspect of decision nodes in UML. This is supported by the UML 2.5 specification, which states that a decision node routes tokens to one of the available outgoing edges based on the conditions evaluated at runtime, ensuring that only one path is taken.
Furthermore, the UML specification explains that the notation for decision nodes and the semantics of token flows are such that they support the modeling of conditional and concurrent behaviors within an activity. This is essential for accurately capturing the logic of complex systems and their operations.
For a more in-depth understanding, you can refer to the UML 2.5.1 specification provided by the Object Management Group (OMG), which details the notation and semantics of activity diagrams, including decision nodes and flows. Additionally, studying the official OMG UML 2 Certification Guide can provide further clarification on these concepts.
Choose the correct answer:
Which UML term pair captures complementary ways of looking at a relationship?
The UML term pair that captures complementary ways of looking at a relationship is 'aggregation / composition'. Both terms describe types of associations between classes but differ in the degree of ownership and lifecycle dependency between the involved objects. Aggregation implies a weaker relationship where the parent class contains or is linked to other classes but does not strictly control their lifecycle (e.g., a university and its students). Composition, on the other hand, implies a stronger relationship where the parent class has full responsibility for the lifecycle of the associated classes (e.g., a house and its rooms). Understanding these relationships helps model systems more accurately in terms of object ownership and lifecycle management.
Choose the correct answer:
Consider the following diagram:
According to the diagram, which statement describes the property db?
In UML, a static property is one that belongs to the class itself rather than any instance of the class. In UML diagrams, static properties are denoted by underlining the property name.
Now, let's review the options:
A . There is no UML notation in the diagram that specifies whether the property db is a primary key. Primary keys are a database concept and UML does not have a standard way to denote them.
B . The property db is underlined, which indicates that it is a static property. This is the correct UML notation for depicting a class-level attribute.
C . There is no indication in the diagram that db is inherited from a superclass. Inherited properties typically are not underlined (unless they are also static), and there is no superclass shown in the diagram.
D . Underlining in UML does not signify importance or emphasis by the modeler, it indicates that a property is static.
Therefore, the answer is B: The property db is a static property. This is based on standard UML notation as outlined in the UML 2.5 Specification by the Object Management Group (OMG), which dictates that static members (attributes or operations) are underlined in class diagrams.
Choose the correct answer:
Which UML term pair captures complementary ways of looking at a relationship?
The UML term pair that captures complementary ways of looking at a relationship is 'aggregation / composition'. Both terms describe types of associations between classes but differ in the degree of ownership and lifecycle dependency between the involved objects. Aggregation implies a weaker relationship where the parent class contains or is linked to other classes but does not strictly control their lifecycle (e.g., a university and its students). Composition, on the other hand, implies a stronger relationship where the parent class has full responsibility for the lifecycle of the associated classes (e.g., a house and its rooms). Understanding these relationships helps model systems more accurately in terms of object ownership and lifecycle management.
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