NWS NWS Requirements Management Requirements Management

Process OverviewProcess Overview

NOAA SAB briefing

March 21, 2002

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Briefing Outline

BACKGROUND NWS OPERATIONAL REQUIREMENTS

MANAGEMENT PROCESS SCIENCE REVIEW AND APPROVAL

PROCESS SUMMARY

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BackgroundBackground

NWS’ existing requirements process is ad-hoc

Requirements and Change Management Branch established within the Office of Services October 2001

New NWS Operational Requirements Management Process was developed

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Requirements Management Process

System RequirementsTraceability, Operational Requirements to System RequirementsTest ResultsDocumentation of the DesignDocumentation of the Components

DeploymentRequirements

ValidationSolutionAnalysis

SolutionSelection

SolutionDevelopment/

PreparationStart

Acceptance TestFinal Science Check

Implementation Checklist Items

Business Case DevelopmentDevelopment Decision

Financial DecisionCCB/PMC Decision

Needs

Proof of ConceptDevelopment OptionsFinancing Options

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Requirements Validation

Identify, Validate, Translate need Define thresholds and objectives Validate operational requirements Assign mission importance Publish operational requirements Stage operational requirements for Solutions

Analysis Track requirements throughout process

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Solutions Analysis

Identify possible solutions Investigate science, feasibility, cost,

schedule, etc., of identified solutions Transmit documented results to Solution

Selection

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Solution Selection

Review analysis data and select solution strategy

Prepare Business Case and determine approval path

Appropriate level will assess Business Case approve or return for further investigation

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Solution Development/Preparation

Plan solution Develop solution Document solution including trace-ability to

operational requirements Test and evaluate solution

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Deployment

Conduct Deployment reviews and verification

Prepare Deployment documentation (procedures, training, maintenance, etc.)

Make deployment decision

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Science Review and Approval Process

Is under review Will ensure scientific merit of proposed

changes to NWS operational analyses, techniques, and products

Establishes criteria for evaluating scientific merit

Establishes levels of approval authority

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Summary

The NWS Operational Requirements Management Process

Provides the framework for functional steps leading from recognized needs to implementation of solutions

Ensures that solutions achieve the desired operational outcome of improved service and operational effectiveness