Requirements Types

Functional

What does the product do? 

Example Requirement:  The system shall provide an RS-232 interface.

 

Performance

How well does the required function have to work?

Example Requirement:  The RS-232 interface shall support a baud rate of 9600.

 

Requirements Verification Methods

Inspection

Inspection is a nondestructive examination of the product using one or more of the five senses.  No manipulation or test equipment is required.

Example Requirement:  Warning LED shall be visible to the operator.

Example Verification:  Sit in the operatorís seat and verify that the LED is visible.

Demonstration

Demonstration is the manipulation of the product as it is intended to ensure that it functions as specified.  Typically no test equipment is required.

Example Requirement:  The system shall have a lamp test button.

Example Verification:  Press the lamp test button and visually verify that the lamps illuminate.

Test

A controlled test that usually uses special test equipment, a written test plan, and test procedure.

Example Requirement:  The system audio output shall have a Signal-to-noise ratio (SNR) of 60dB or greater.

Example Verification:  Use the Audio SNR test set to measure and verify that the SNR is at least 60dB

Analysis

is the verification of a product or system using models, calculations and testing equipment.  Analysis allows someone to make predictive statements about the typical performance of a product or system based on the confirmed test results of a sample set or by combining the outcome of individual tests to conclude something new about the product or system.  It is often used to predict the breaking point or failure of a product or system by using nondestructive tests to extrapolate the failure point.

 

Spec #

Spec Title

AC 43.13-1B

ACCEPTABLE METHODS, TECHNIQUES, AND PRATICES - AIRCRAFT INSPECTION AND REPAIR

AC 43.13-2B

ACCEPTABLE METHODS, TECHNIQUES, AND PRATICES - AIRCRAFT ALTERATIONS

 

 

APR1870

Aerospace Systems Electrical Bonding and Grounding for Electromagnetic Compatibility and Safety

AS50881

Wiring Aerospace Vehicle

 

 

IPC/WHMA-A-620B

Requirements and Acceptance for Cable and Wire Harness Assemblies (the bible for cable assy)

IPC-2221

Generic Standard on Printed Board Design

IPC-2222

Design Standard for High Density Interconnect (HDI) Printed Boards

IPC-4101

Specification for Base Materials for Rigid and Multilayer Printed Boards

IPC-4202

Flexible Base Dielectrics for Use in Flexible Printed Circuitry

IPC-4303

Adhesive Coated Dielectric Films for Use as Cover Sheets for Flexible Printed Circuitry and Flexible Adhesive
Bonding Films

IPC-4404

Flexible Metal-Clad Dielectrics for Use in Fabrication of Flexible Printed Circuitry

IPC-4552

Specification for Electroless Nickel/Immersion Gold (ENIG) Plating for Printed Circuit Boards

IPC-6011

Generic Performance Specification for Printed Boards

IPC-6012

Qualification and Performance Specification for Rigid Printed Boards

IPC-6013

Qualification and Performance Specification for Flexible Printed Boards

IPC-A-620

Requirements and Acceptance for Cable and Wire Harness Assemblies

IPC-HDBK-840

Solder Mask Handbook

 

 

MIL-DTL-2212

CONTACTORS AND CONTROLLERS, ELECTRIC MOTOR AC OR DC, AND ASSOCIATED SWITCHING DEVICES

MIL-HDBK-1857

HANDBOOK FOR GROUNDING, BONDING AND SHIELDING DESIGN PRACTICES

MIL-HDBK-310

GLOBAL CLIMATIC DATA FOR DEVELOPING MILITARY PRODUCTS

MIL-HDBK-454

GENERAL GUIDELINES FOR ELECTRONIC EQUIPMENT

MIL-PRF-28800

TEST EQUIPMENT FOR USE WITH ELECTRICAL AND ELECTRONIC EQUIPMENT, GENERAL SPECIFICATION FOR

MIL-PRF-31032A

PRINTED CIRCUIT BOARD/PRINTED WIRING BOARD, GENERAL SPECIFICATION FOR

MIL-PRF-87252

COOLANT FLUID, HYDROLYTICALLY STABLE, DIELECTRIC

MIL-R-47196A

RIVETS, BUCK TYPE, PREPARATION FOR AND INSTALLATION OF

MIL-STD-1275

CHARACTERISTICS OF 28 VOLT DC INPUT POWER TO UTILIZATION EQUIPMENT IN MILITARY VEHICLES

MIL-STD-1310H

SHIPBOARD BONDING, GROUNDING, AND OTHER TECHNIQUES FOR ELECTROMAGNETIC COMPATIBILITY, ELECTROMAGNETIC PULSE (EMP) MITIGATION, AND SAFETY

MIL-STD-1316

FUZE DESIGN, SAFETY CRITERIA FOR

MIL-STD-1399

INTERFACE STANDARD FOR SHIPBOARD SYSTEMS

MIL-STD-1399 -300B

INTERFACE STANDARD SECTION 300B ELECTRIC POWER, ALTERNATING CURRENT

MIL-STD-1553

DIGITAL TIME DIVISION COMMAND/RESPONSE MULTIPLEX DATA BUS

MIL-STD-1686C

ELECTROSTATIC DISCHARGE CONTROL PROGRAM FOR PROTECTION OF ELECTRICAL AND ELECTRONIC PARTS, I ASSEMBLIES AND EQUIPMENT (EXCLUDING ELECTRICALLY INITIATED EXPLOSIVE DEVICES)

MIL-STD-1760

AIRCRAFT/STORE ELECTRICAL INTERCONNECTION SYSTEM

MIL-STD-1901

MUNITION ROCKET AND MISSILE MOTOR IGNITION SYSTEM DESIGN, SAFETY CRITERIA FOR

MIL-STD-198

CAPACITORS, SELECTION AND USE OF

Mil-STD-199

RESISTORS, SELECTION AND USE OF

MIL-STD-331

FUZE AND FUZE COMPONENTS, ENVIRONMENTAL AND PERFORMANCE TESTS FOR

MIL-STD-461

REQUIREMENTS FOR THE CONTROL OF ELECTROMAGNETIC INTERFERENCE CHARACTERISTICS OF SUBSYSTEMS AND EQUIPMENT

MIL-STD-464C

ELECTROMAGNETIC ENVIRONMENTAL EFFECTS REQUIREMENTS FOR SYSTEMS

MIL-STD-704

AIRCRAFT ELECTRIC POWER CHARACTERISTICS

MIL-STD-810

ENVIRONMENTAL ENGINEERING CONSIDERATIONS AND LABORATORY TESTS

MIL-STD-882

STANDARD PRACTICE SYSTEM SAFETY

 

 

NASM47196

PREPARATION FOR AND INSTALLATION OF BUCK-TYPE RIVETS

 

 

NEMA WC 2700-2005

Standard For Aerospace And Industrial Electrical Cable

 

 

PD-ED-1214

Electrical Grounding Practices for Aerospace Hardware, NASA

 

 

 

 

end