MBSE with CORE 100821

CORE Systems Metamodel Concepts

Systems metamodel (also known as the System Definition Language) is an extended natural language in ERA format

CORE Concept

English Equivalent

CORE Example

• Requirement Accept Requests • Function Accept And Format Request • Component Command Center Subsystem • Requirement basis of Functions • Functions are allocated to Components

Class / Element

Common Noun / Particular Noun

Relationship

Verb

Attribute

Adjective

• Description • Number

Resource consumed by Function • Amount • Acquire Available (hold partial)

Relationship Attribute

Adverb

Parameter

N/A

Design-dependent variables (mass, size, reliability, etc.)

Structure

N/A

Viewed as activity diagram or enhanced FFBD

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Seeing a Partial Systems Engineering Example

DOCUMENT

documents (documented by)

documents (documented by)

• Number • Description • Type

REQUIREMENT

COMPONENT

• Number • Description • Type • Origin

specifies (specified by)

• Number • Description • Type

FUNCTION

specified by (specifies)

performs (allocated to)

• Number • Description • Duration • Exit Logic

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MBSE with CORE