Beginners Guide to Model-Based Systems Engineering

12/18/2018

Key Semantics of Activity Diagrams, cont.

• Items

• Typically name only • Drawn as rectangle

• Shows only local relationships • Input relationship represented as single arrowhead with <> decoration • Triggering relationship represented as single arrowhead without decoration

Additional information available in Chapter 9 of A Practical Guide to SysML

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Mapping Activity Diagrams

elicits

Requirement

Use Case

elaboratedby

refinedby

basedon / specifiedby

verifiedby

specifiedby

includes/ extends/ kindof

Verification Requirement

verifiedby

fulfilledby

involves/ describes

executedby

Verification Event

Resource

employs

includes

Test Configuration

Test Activity

captures/ consumes/ produces

formedby

Test Procedure

decomposedby

Level of Detail: Highest Audience: System and software engineers Content: Composition, triggering, and allocation Use: Full specification of system behavior; best at lower levels of decomposition (design view)

Component

Function

performs

incorporates

exhibits

exitsby

built from / kindof

exposes

decomposedby

joined to

State

enters

exitedby

inputs/ outputs/ triggeredby

Exit

Interface

Port

decomposedby

includes

comprisedof

Event

Transition

responsible for

connectsto

triggeredby

Link

Item

transfers

includes

decomposedby

constrains/ usesparameter from

generates

results in

causes

assignedto

Organization

Constraint Definition

Concern

Risk

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