OMG OMG Certifications OMG-OCSMP-MBA400 Questions & Answers

• Question 21:

  Choose the correct answer

  In addition to selecting the methodology activities to be performed, what other tailoring does the systems modeling team need to consider when defining the project methodology?

  A. which activities will interact with external systems

  B. which kind of diagrams will be used to create the domain model

  C. which artifacts need to be produced when executing the tailored activities

  D. which requirements will be allocated to the specialty engineering activities

  Correct Answer: C

  An artifact is a tangible or intangible product or outcome of an activity or process. Examples of artifacts include models, diagrams, documents, reports, etc. When defining the project methodology, the systems modeling team needs to consider which artifacts need to be produced when executing the tailored activities, because this determines what information needs to be captured, communicated, and delivered throughout the project lifecycle. The artifacts should be aligned with the project objectives, scope, deliverables, and quality standards

• Question 22:

  Choose the correct answer An engineer using SysML modeling tool B imports an XMI die produced by SysML modeling tool A (containing a complete model) and makes changes to the model What is the best way XMI provides to introduce the changes back to the original model in the original tool (Tool A)?

  A. Export only the modified and new elements to XMI and import it to Tool A.

  B. Produce a special XMI file expressing the differences from the original XMI and import it into Tool A

  C. Partition the models and exchange parts of the models alter identifying the parts that were changed.

  D. Import the entire model back to Tool A as a separate copy and use the tool's diff/merge utility to merge in the changes

  Correct Answer: B

  XMI is a standard format for exchanging metadata information via XML, such as UML models. XMI supports a mechanism for producing a special XMI file that contains only the differences between two versions of a model, called a difference model. This file can be imported into another tool to apply the changes to the original model. This approach is more efficient and reliable than exporting and importing the entire model or parts of it

• Question 23:

  Choose the correct answer.

  The frame of which diagram corresponds to a model library?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

  The frame of the diagram that corresponds to a model library is the one that has the label "modelLibrary" in its upper left corner. This label indicates that the diagram is contained within a package with the stereotype <> applied to it. Option D shows a diagram with this label.

• Question 24:

  Choose the correct answer

  Which SysML diagram type is a modification of the UML Composite Structure diagram?

  A. Parametric Diagram

  B. Internal Block Diagram

  C. Package Diagram

  D. Block Definition Diagram

  Correct Answer: B

  The SysML diagram type that is a modification of the UML Composite Structure diagram is the Internal Block Diagram (IBD). An IBD shows the internal structure of a block in terms of its parts, ports, connectors, and flows. It is similar to a

  UML Composite Structure diagram, but it adds some features specific to SysML, such as flow ports, flow specifications, item flows, nested connectors, etc. References:

  https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://sysml.org/tutorials/sysml- diagram-tutorial/

• Question 25:

  Choose the correct answer

  Which statement is true about a method?

  A. A method Is generic and can be used out-of-the-box

  B. A method is not necessary to build an effective SysML model.

  C. A method must be adapted to company or project specific needs

  D. A method must be adapted to the specific features of the modeling language

  Correct Answer: C

  A method is a technique or procedure for performing a specific task. A method is not generic and cannot be used out-of-the-box, because it depends on the context and purpose of the task. A method is not unnecessary to build an effective SysML model, because it provides guidance and structure for the modeling process. A method does not depend on the specific features of the modeling language, because it can be applied to different languages with appropriate adjustments. Therefore, a method must be adapted to company or project specific needs, because it should reflect the goals, requirements, constraints, and preferences of the stakeholders involved in the project

• Question 26:

  Choose the correct answer

  A systems engineer's company is considering making a substantial investment In a Product Lifecycle Management (PLM) solution. As a Model Based Systems Engineering expert. The engineer has been asked to advise the team on how MBSE methodology impacts the PLM solution

  Which option lists the most important factors that the engineer should consider"?

  A. how manufacturing, lest and integration methods can be driven by system models, and how this is facilitated by PLM tools

  B. the high cost of maintaining modeling tools and modeling proficiency training, and potential advantages of teaming arrangements with vendors

  C. how well any proposed MBSE methodology interfaces with the company's Model Driven Software Development methodology, and how this is facilitated by PLM tools

  D. the spectrum of models the company uses across the system lifecycle. how model elements can be related to each other, and how these relationships are supported by PLM tools

  E. how outputs of system models, software models, and hardware models are archived in Product Data Management (PDM) tools, and how these models can be organized into libraries within these tools

  Correct Answer: D

  The most important factors that the engineer should consider when advising the team on how MBSE methodology impacts the PLM solution are the spectrum of models the company uses across the system lifecycle, how model elements can be related to each other, and how theserelationships are supported by PLM tools. The spectrum of models refers to the different types, levels and views of models that are used to represent different aspects and phases of the system development, such as requirements, design, analysis, verification and validation. The relationships between model elements refer to the traceability, consistency and dependency links that connect different elements within and across models. The support by PLM tools refers to the ability of the tools to store, manage, access and integrate the models and their relationships throughout the system lifecycle. These factors are important because they affect how well the MBSE methodology can be implemented and executed using the PLM solution. How manufacturing, test and integration methods can be driven by system models is a less important factor that may not be relevant to all systems or projects. The high cost of maintaining modeling tools and modeling proficiency training is a less important factor that may not be specific to MBSE methodology or PLM solution. How well any proposed MBSE methodology interfaces with the company's Model Driven Software Development methodology is a less important factor that may not apply to all systems or projects. How outputs of system models, software models, and hardware models are archived in Product Data Management (PDM) tools is a less important factor that may not reflect the full potential of MBSE methodology or PLM solution. References: OMG-Certified Systems Modeling Professional - Model Builder ?Advanced (OCUP2-ADV) Examination Guide Version 1.0, Section 4.5

• Question 27:

  Choose the correct answer

  Which OMG specifications does UPDM use at L1?

  A. UMLandSysML

  B. UML. SysML. and BPMN

  C. UML, SysML and MARTE

  D. UML, SysML and SOAML

  Correct Answer: A

  The OMG specifications that UPDM uses at L1 are UML and SysML. L1 is the level of abstraction that defines the core concepts of UPDM without any implementation details. It is based on a Domain Metamodel that captures the common elements of DoDAF and MODAF. The Domain Metamodel is mapped to UML and SysML concepts using a Platform Independent Model (PIM). UML and SysML provide the basic metaclasses and diagrams that UPDM uses to represent architectures.

• Question 28:

  Choose the correct answer Where may tagged values be defined?

  A. only as attributes of classifiers

  B. only as attributes of stereotypes

  C. on any model element in a profile

  D. on any model element

  Correct Answer: B

  Tagged values can be defined only as attributes of stereotypes. A tagged value is an extension of a model element with additional information that is not part of its standard properties. A tagged value is defined by an attribute of a stereotype that is applied to the model element. The attribute specifies the name and type of the tagged value.

• Question 29:

  Choose the correct answer

  A system engineer is designing an algorithm that governs the behavior of his system-of- interest He is using SysML for modeling system behavior and related allocations, and plans to auto-generate MATLAB code for algorithm execution and testing.

  Which modeling approach should the engineer use?

  A. use block constructs to represent the algorithm, and create use cases for each of the functions used in the algorithm

  B. use activity constructs to represent the algorithm and its functions, and create actions to represent the use of functions in the algorithm

  C. use block constructs to represent the algorithm and its functions, and create part properties to represent the use of the functions in the algorithm

  D. use activity constructs to represent the algorithm and its functions, and create containment relationships to represent the use of functions in the algorithm

  E. use package constructs to represent the algorithm and its functions, and create containment relationships to represent the use of functions in the algorithm

  F. Code generation is outside the scope of SysML. so the system engineer should use UML

  Correct Answer: B

  This modeling approach should be used by the system engineer because it allows him to capture the behavior of his system-of-interest using SysML activities and actions. An activity is a behavior that specifies the coordination of actions. An action is a behavior that specifies a transformation or processing of data. By using activities and actions, the engineer can model the algorithm and its functions in terms of inputs, outputs, control flows, object flows, parameters, etc. He can also use allocations to relate the activities and actions to other model elements, such as blocks or requirements. This way, he can generate MATLAB code from his SysML model for execution and testing.

• Question 30:

  Choose the correct answer

  What are two cross-cutting mechanisms within SysML that can be used to establish traceability between the systems model and a UML software model?

  A. packages and parametrics

  B. profiles and stereolypes

  C. allocations and stereotypes

  D. requirement relationships and allocations

  Correct Answer: C

  Two cross-cutting mechanisms within SysML that can be used to establish traceability between the systems model and a UML software model are allocations and stereotypes. Allocations are dependencies that indicate a relationship between elements in different models or domains. Stereotypes are extensions of existing metaclasses that add additional information or semantics to model elements. By using allocations and stereotypes, different aspects of the systems model and the software model can be linked and traced.