Beginners Guide to Model-Based Systems Engineering

12/18/2018

Key Semantics of Requirements Diagrams

reqAcceptRequests fromCertifiedCustomers

• Nodes represent objects

<>

AcceptMedia of Requests

The systemshallaccept requests via any of the followingmedia: 1) Hardcopy Forms; 2)Verbal; 3)Phone-verbal; 4) Phone-electronic file; 5) Web-based electronic file.

<>

• Type, name, and description standard

<>

AcceptRequests

• Lines represent relationships •

The systemshallaccept information requests.

<

AcceptRequests

<>

Verify:The systemshall accept intelligence data collection requests fromthe certifiedusers.

<> AcceptRequests from CertifiedCustomers The systemshallaccept information requests from certified customers.

<> - partitioning of a complex requirement without adding meaning • <> - more detailed requirement arrived at via analysis • <> - assertion that a model element satisfies the requirement • <> - reference to a test case or verification aspect

<> CheckCertification Response

For validated customer certification, the system shall format the customer's request into a common form for subsequent systemuse. Rejected requests shallbe returned to the customer and rejectionmetrics prepared.

<>

<>

ValidateCertifiedCustomers

The systemshallvalidate the customer's certification to order imagery products.

<> Notify Customer of Disapproval

The systemshallprepare the customer's certification disapprovalnotification. The certificationdisapproval notification shall include the customer's order identifier, the customer's identifier and the reason for the certificationdisapproval.

<>

Additional information available in Chapter 13 of A Practical Guide to SysML

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reqAcceptRequests fromCertifiedCustomers

<> Media of Requests: Hardcopy Forms

<>

<>

The systemshallaccept requests via hardcopy forms.

Mapping Requirements Diagrams

AcceptMedia of Requests

<>

AcceptRequests

The systemshallaccept requests via any of the followingmedia: 1) Hardcopy Forms; 2)Verbal; 3)Phone-verbal; 4) Phone-electronic file; 5) Web-based electronic file.

<>

The systemshallaccept information requests.

<>

Media of Requests:Verbal

<>

The systemshallaccept verbal requests.

<> CheckCertification Response

<> Media of Requests:Verbal Telephonic

For validated customer certification, the system shall format the customer's request into a common form for subsequent systemuse. Rejected requests shallbe returned to the customer and rejectionmetrics prepared.

<>

<>

The systemshallaccept requests via telephone.

elicits

Requirement

Use Case

<> AcceptRequests from CertifiedCustomers The systemshallaccept information requests from certified customers.

elaboratedby

<>

<> Media of Requests: TelephonicElectronic File

ValidateCertifiedCustomers

<>

The systemshallvalidate the customer's certification to order imagery products.

<> Notify Customer of Disapproval

The systemshallaccept requests via telephonic electronic file.

refinedby

basedon / specifiedby

verifiedby

specifiedby

includes/ extends/ kindof

The systemshallprepare the customer's certification disapprovalnotification. The certificationdisapproval notification shall include the customer's order identifier, the customer's identifier and the reason for the certificationdisapproval.

<>

<> Media of Requests:Web Services

<>

Verification Requirement

The systemshallaccept requests via via aWeb service.

verifiedby

fulfilledby

involves/ describes

executedby

Verification Event

Resource

employs

includes

Test Configuration

Test Activity

captures/ consumes/ produces

formedby

Test Procedure

decomposedby

Component

Function

performs

Level of Detail: Medium Audience: System/software engineers Content: Names, relationships, and descriptions Use: Limited (toy representation); context for limited set of requirements

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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