1. RAM Commander
Reliability and Safety Software
30 YEARS OF SYSTEM SAFETY LEADERSHIP
RAM Commander
Reliability and Safety Software

2. RAM Commander
Reliability and Safety Software
30 YEARS OF SYSTEM SAFETY LEADERSHIP
RAM Commander by ALD is far more than just a Reliability & Safety
Software – it is a comprehensive RAMS toolkit covering all tasks
required from reliability and safety engineers as well as designers’
need for a quick MTBF Evaluation, Availability Calculation,
Maintainability, Safety and Risk Analysis.
The Most advanced RAMS Toolkit in the Market!
All RAMS Analysis in One Package:
MTBF calculation
RBD
FMECA
FTA
MARKOV
ETA
FHA
SSA
RCM / MSG-3

3. 30 YEARS OF SYSTEM SAFETY LEADERSHIP
The main block of RAM Commander is the Bill of Material, which can be either
imported from external applications or built manually in RAM Commander.
The Product Tree (BOM) forms the basis for the rest of the RAM Commander RAMS
modules which are interdependent and can be accessed by a one-click switch;
from Reliability Prediction to FMECA and Testability, RBD, FTA, etc.
RAM Commander is a modular application - modules may be used and purchased
separately, or as an integrated RAMS toolkit.
RAM Commander Software supports the following Reliability Prediction methods:
Electronic Components Reliability Prediction Methods:
MIL-HDBK-217 (All versions), RADC-TR-85-91, Reliability Toolkit (1995), 217Plus,
ALCATEL, BELLCORE Issue 5,6, BRITISH TELECOM HRD4, HRD5, CNET RDF93
rev. 02/95, IEC 62380, UTE C 80-810, FIDES Guide 2004, 2009, ITALTEL IRPH93,
Telcordia SR-332 Issue 1, 2 & 3, Siemens SN 29500, GJB 299C, Stress/Strength
Analysis, GPRD (for user defined failure rates).
Mechanical Components Reliability Prediction Methods:
NSWC-98/LE1 Mechanics, NPRD-95, NPRD 2011,Stress/Strength Analysis, GPRD.
RAM Commander Component Libraries:
Easy to use built-in libraries containing over 400,000 widely used components by
world leading manufactures, include powerful decoding mechanism, user-defined
libraries and enhanced search features.
45.38
41.70
3.52
---
Capacitor
Antenna
Switch
IC-Digital
Motor
3.31
2.85
2.38
Pareto analysis (by item code)
Graph Generator for RAM Commander
RAM Commander
Reliability and Safety Software
Importable Product Tree (BOM)

4. RAM Commander
Reliability and Safety Software
30 YEARS OF SYSTEM SAFETY LEADERSHIP
GPRD - Generalized Part Reliability Data -
General Part Data Weibull
A useful general distribution for describing failure time data
of mechanical or electro-mechanical equipment with aging,
resulting in a Shape parameter (Beta) and a Scale parameter
(Teta).
RBD - Reliability Block Diagrams
with Monte Carlo Simulation
Calculation of functional Reliability and Availability analysis
of systems with various reliability distributions including all
types of redundancy and repair factors.
Markov Chains
A powerful tool for analyzing the evolution, performance and
reliability of physical systems, calculation of steady-state
mode, time-dependency mode, availability, unavailability,
failure & repair rate & frequency, MTBF, MTTF, MTTR,
reliability/unreliability and other system parameters.
RBD STANDARD for Project TUTORIAL Drive C:
State1 - A ok, B ok,
Init.prob.=1,
Performance=20
State2 - A failed,
B ok, Init.prob.=0,
Performance=10
State4 - A and B
failed, Init.prob.=0,
Performance=0
Unit A Repair, Rate=0.01
Unit A Failure Rate, Rate=0.0001
Unit B Failure Rate,
Rate=0.0002
Unit A Failure Rate, Rate=0.0001
Unit B Repair
Rate, Rate=0.02
B Failure Rate,
Rate=0.0002
State4 - A ok, B
failed, Init.prob.=0,
Performance=10
Markov Diagram Example

5. RAM Commander
Reliability and Safety Software
30 YEARS OF SYSTEM SAFETY LEADERSHIP
Derating
Provides a tool for defining derating guidelines to analyze the overstressed
components under current temperature conditions.
Maintainability Prediction
Used to predict maintainability of systems and equipment of any type at any level of
maintenance.
MSG-3
Including System, Zonal and Structural Analysis. Used by aircraft manufactures &
aircraft operators to perform aircraft scheduled maintenance development analysis
according to ATA MSG-3 procedure.
RCM
Utilizes a systematic approach to understand how equipment fails and what
maintenance tasks can be done to minimize failures, maximize reliability, understand
why certain maintenance tasks are performed and eliminate unnecessary preventive
maintenance activities.
FMECA
Serves for automated failure mode, effects and criticality analysis, both hardware
and functional approaches fully complys with MIL-STD-1629 and GMP. Integration of
Testability features for in-depth testability analysis.

6. RAM Commander
Reliability and Safety Software
30 YEARS OF SYSTEM SAFETY LEADERSHIP
Process & Design FMEA
Performs P&D potential failure mode and effects analysis based on
MIL-STD-1629.
FTA
A widely used method in system reliability and failure probability
analysis, used to determine various combinations of hardware,
software and human error failures that could result in specified risk
or system failure.
Includs FT+, CAFTA and Aralia SIMtree import.
Safety Toolkit
Implements safety tasks defined by the various safety assessment
standards/ recommendations according to SAEARP4754 A, ARP
4761, MIL-STD-882, FAR25-1309b.
WWW.ALDSERVICE.COM
ALD Software Ltd.
contact us at: support@ald.co.il
FTA Tutorial for project TUTORIAL on Drive C:
2.32e-006
1.47e-006
1.83e-006
7.32e-00711.3e-0079.83e-0072.7e-0079.83e-007
Repairable
FR=8.35
MTTR=0.117667
Repairable
FR=6.6583
MTTR=0.0333333
Probability
q=0.01
Repairable
FR=2.94567
MTTR=0.127333
Repairable
FR=0.751307
MTTR=0.354
Repairable
FR=3.996
MTTR=0.0946667
Repairable
FR=0.288
MTTR=0.0946667
Repairable
FR=3.4
MTTR=0.0333333
Repairable
FR=8.35
MTTR=0.117667
Repairable
FR=3.44531
MTTR=0.0946667
2.22e-007
4.06e-007
3.78e-007
3.26e-007
3.73e-0073.75e-007
3.75e-0092.665e-007
00.1
sample Fault Tree for project
TUTORIAL - according to project’s
Product Tree and FMCA
FTA Tutorial for project TUTORIAL on Drive C:
OR
OR OR
OR
ORAND
Communication
failure
Receiver /
Transmitter
PS
Power Supply
Antenna failure
Communication
System general
failure
PS
Power Supply
Control failure
HardDrive
Total drive fail
Mother Board -
CPU Fail
Mother Board -
Memory Fail
System Block
Failure
MotherBoard
Keyboard
Total keyboard fail
OR
Receiver failure
Transmitter
failure2
Transmitter
failure
Alternative
transmitter failure
Partial List of ALD Customers: