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National Instruments Requirements Gateway (NIRG)

LabVIEW Users GroupCassie WeissertJune 4, 2009

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Outline

Overview NIRG as a Traceability Solution LabVIEW coverage NIRG Project Configuration Supported Views Supported Reports Demos Summary

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What is NIRG?

Requirements Traceability Software Solution• Provides automated requirements management• Reduces time required to produce requirements management

products Traceability between higher-level and lower-level requirements Verification Matrices Impact Analysis

• Supports Compliance CMMI 21 CFR Part 11 DO-178B

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NIRG as a Traceability Solution

Link development and verification documents to formal requirements• Requirements may be in documents and/or databases

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NIRG as a Traceability Solution

Multiple Formats Supported• Supports any Text Document

=> C,C++, Perl, Java, … may all be covered

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LabVIEW Coverage

Identifies requirements coverage by:• VI Description• Indicator / Control Label or Caption• Coverage is all customizable

Driven by regular expressions This is where the effort is required – the rest is truly automated

• NIRG V1.1 adds support for checksum type, *.lvproj and *.lvlib

Relationships are Endless• Requirements• Design Documentation / Schematics• Code from multiple sources• Test Plans• Automated test scripts / TestStand

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Key is use of Requirement IDs Add coverage comments to code / documents

referencing the Requirement ID Customize Project Types

Requirement Reference

Capturing Traceability Information

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Example

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NIRG Project Configuration

Configure Documents / Code• Type of traceability information to obtain from each• Relationships between them• Specified graphically

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NIRG Project Configuration Example

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NIRG Type Specification

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Regular Expression Tester

Useful tool for verifying Regular Expression for Type modifications From Type – clicking on Re Expressions loads the

Regular expression to be tested

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Management View

Provides high level view of project• Elements of each document• Summary coverage information

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Coverage Analysis View

For selected element of a document• Displays one level up and one level down from other documents

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Impact Analysis View

For selected element of a document• Displays all levels of covered elements

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Graphical View

Displays each document graphically• Tree view with lines connecting requirement elements to

covering elements• Choose only select relationships or documents to simplify view

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Requirements Details

Shows all Requirements with Text and coverage summary

Info is available in other views or double-click to open source document

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Reporting Capabilities

Based on customizable templates Capability to take snapshots of projects at different

stages of development• Use to document changes in coverage and progress

Export results as linkage back up into DOORS

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NIRG Traceability Report

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NIRG Analysis Report

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Lessons Learned

LabVIEW coverage in top level controls only• Tab Control vs. controls on the tab

LabVIEW Covers statements only a single requirement• Word: [Covers: REQ-1, REQ-2, REQ-3]• LabVIEW: [Covers: REQ-1] [Covers: REQ-2]

Code File Types (text files)• Advanced Options – Apply Filter; include subdirectories

Configure Intermediate XML file use for large files• LabVIEW and DOORS

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Conclusions

NIRG provides a robust, flexible requirements management solution for LabVIEW integration

Customers love it and believe your reports The traceability is endless