OMG-OCSMP-MBA400 Online Practice Questions and Answers

Correct Answer: D

The SysML diagram type that is a modification of the UML Class diagram is the Block Definition Diagram (BDD). A BDD shows the definition of blocks in terms of their features, such as properties, operations, ports, etc. It is similar to a UML Class diagram, but it adds some features specific to SysML, such as value types, units, flow properties, etc. A block is an extension of the UML Class metaclass that can be used to model any system component with structure and behavior.

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

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.

Correct Answer: C

If a systems modeling tool conforms to the XMI specification and includes the XMI representation of the UML Profile for SysML and the XMI representations of Model Libraries defined by SysML, the tool provides the import and export of both SysML diagrams and model data from one tool to another. XMI (XML Metadata Interchange) is a format specification that enables the interchange of objects and models through an XML formatted file. It is based on a metamodel that defines the abstract syntax and semantics of the model elements. By conforming to the XMI specification, a tool can serialize and deserialize SysML models in terms of XML elements and attributes. The tool can also include the XMI representation of the UML Profile for SysML, which defines the mapping of SysML concepts to UML concepts, and the XMI representations of Model Libraries defined by SysML, which provide predefined types and units for SysML models. This way, the tool can import and export both SysML diagrams and model data from one tool to another, ensuring consistency and interoperability. References: https://www.omg.org/ocsmp/ocsmp- adv-exam.htm https://www.omg.org/spec/XMI/2.5.1/About-XMI/

Correct Answer: C

The typical stakeholder views of a design are composed of both behavioral and structural diagrams, depending on the purpose and perspective of the view. Behavioral diagrams show how the system or part behaves or interacts in different scenarios or states, such as activity, state and sequence diagrams. Structural diagrams show how the system or part is composed of parts, ports, connectors and properties, such as block definition and internal block diagrams. Both types of diagrams are important to convey the functionality and architecture of the system or part to different stakeholders. Use case and requirements diagrams are not sufficient to populate the stakeholder views of a design, as they only capture the functional and non-functional aspects of the system or part. References: OMG- Certified Systems Modeling Professional - Model Builder ?Advanced (OCUP2-ADV) Examination Guide Version 1.0, Section 4.4

Correct Answer: C

The forward temporal order of these development stages is based on the typical sequence of activities in a system engineering process. Needs analysis is the first stage, where the problem and the stakeholder needs are defined. System design is the second stage, where the system architecture and requirements are developed. Trade study is the third stage, where alternative solutions are evaluated and compared based on various criteria. System acceptance is the final stage, where the system is verified, validated, and delivered to the customer.

Correct Answer: D

A measure of model quality is a metric that evaluates how well a model satisfies some desired characteristics, such as correctness, completeness, consistency, clarity, etc. The number of actions and activities with no incoming object or control flows is a measure of model quality that indicates how well the model captures the dependencies and sequences of events in the system. A high number of such actions and activities may imply that the model is incomplete or inconsistent, and may lead to errors or ambiguities in the system behavior.

Correct Answer: B

MOF stands for Meta-Object Facility, which is a standard for defining metamodels. Metamodels are models of modeling constructs, such as classes, attributes, associations, etc. SysML stands for Systems Modeling Language, which is a standard for modeling complex systems using diagrams and textual notations. SysML models represent real world entities and processes, such as components, behaviors, requirements, etc. The key distinction between SysML modeling and MOF modeling is that SysML models are instances of a metamodel defined by MOF. References: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://www.omg.org/mof/https://www.omg.org/sysml/

Correct Answer: C

The most important aspect of system development methodologies that the engineer is likely to discuss with the director of field support is how the system model can be used to facilitate change proposals, support plans, and training in the operational environment. The system model can provide a consistent and comprehensive view of the system's structure, behavior and performance throughout its lifecycle, and can help identify and evaluate potential changes, improvements or issues in the field. The system model can also help document and communicate the support requirements, procedures and resources for the system's operation and maintenance. The system model can also help design and deliver effective training programs for the system's users and operators. How field support operations can be modeled using MBSE methods, how software design patterns can be used to suggest Pre Planned Product Improvement (P3I) opportunities, and how operational evaluation (OPEVAL) plans can be developed and cross-checked in a system modeling environment are less important aspects of system development methodologies that may not be relevant or applicable to the director of field support's concerns. References: OMG-Certified Systems Modeling Professional - Model Builder ?Advanced (OCUP2-ADV) Examination Guide Version 1.0, Section 4.5

Correct Answer: C

The diagram fragment that correctly expresses the requirement that the model must only be built using the constructs defined in the Quality profile is Option C. This option shows an Apply relationship between the model and the profile with the {strict} keyword applied. This means that only elements with stereotypes from the Quality profile can be created as instances of the extended metaclasses. References: https://www.omg.org/ocsmp/ocsmp-adv-exam.htm https://www.ibm.com/docs/SSB2MU_8.2.0/com.ibm.rhp.sysml.doc/topics/rhp_c_ dm_sysml_profile_features.html