ALTA: Accelerated Life Testing Data Analysis Software Tool

Accelerated life tests... quantifiable resultsTM

Click to see a picture of the software interface...ReliaSoft's ALTA software provides an intuitive and user-friendly way to utilize tremendously complex and powerful mathematical models for  quantitative accelerated life testing data analysis.

Quantitative accelerated life testing techniques in conjunction with powerful QALT data analysis methodologies give design and reliability engineers the power to significantly reduce test times, which can provide faster time to market, lower product development costs, lower warranty costs and other benefits!

Software Features

ALTA provides a comprehensive toolset for accelerated test planning and quantitative accelerated life testing data analysis, plots and reporting. The software tool is available in two versions and both provide a complete array of utilities for designing accelerated life tests, evaluating the fit of the model, calculating reliability metrics, generating plots and performing related statistical analyses.

ALTA Standard provides the life-stress relationship models required to analyze accelerated life test data with 1 or 2 constant stresses.

ALTA PRO offers advanced capabilities for analyzing accelerated life test data with up to 8 simultaneous stress types where stress is constant or varies with time!

Synthesis Integration

With the release of Version 8, ALTA analyses are stored in a centralized database that supports simultaneous access by multiple users and shares relevant reliability information between Synthesis-enabled software tools. For enterprise-level repositories, both Microsoft SQL Server® and Oracle® are supported.

Available Training

ReliaSoft offers two training courses that specifically address the subject of quantitative accelerated life testing data analysis (ALT analysis, QALT analysis) and related techniques. By combining a solid theoretical foundation with practical application examples and hands-on software training, these courses will give you the knowledge and skills you will need to successfully apply these useful methodologies to meet the specific challenges you face.

Applications and Benefits

Some of the potential applications and benefits for using quantitative accelerated life testing data analysis techniques and ReliaSoft's ALTA software tool include the ability to:

  • Understand and quantify the effects of stress (or other factors) on product life.
  • Design accelerated tests that will be the most effective to achieve desired objectives.
  • Significantly reduce the test time required to obtain reliability metrics for a product, which can result in faster time-to-market, lower product development costs and improved designs.
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Software Capability Highlights

Data Types (individually or in groups)

  • Complete
  • Right Censored
  • Left Censored
  • Interval Censored
  • Free-Form

Life-Stress Relationship Models
(single or multiple stress; stress is constant stress or varies with time)

  • Arrhenius
  • Eyring
  • Inverse Power Law
  • Temperature-Humidity
  • Temperature-NonThermal
  • Proportional Hazards
  • General Log-Linear (with user-defined transformations)
  • Cumulative Damage
  • Generalized Eyring

Lifetime Distributions

  • Weibull
  • Lognormal
  • Exponential

Analysis Methods

  • Maximum Likelihood (MLE)
  • Fisher Matrix Confidence Bounds

Calculated Results

  • Reliability
  • Probability of Failure
  • Mean Life
  • Reliable Life (aka Warranty Time)
  • BX% Life
  • Acceleration Factor
  • Failure Rate

Plot Types (some 2D and some 3D)

  • Probability
  • Reliability vs. Time
  • Unreliability vs. Time
  • Failure Rate vs. Time
  • pdf Plot
  • Life vs. Stress
  • Standard Deviation vs. Stress
  • Acceleration Factor vs. Stress
  • Standardized Residuals
  • Cox-Snell Residuals
  • Standardized Residuals vs. Fitted Values

Degradation Analysis

  • Linear
  • Exponential
  • Power
  • Logarithmic
  • Gompertz
  • Lloyd-Lipow

Accelerated Test Plans

  • 2 Level Statistically Optimum Plan
  • 3 Level Best Standard Plan
  • 3 Level Best Compromise Plan
  • 3 Level Best Equal Expected Number Failing Plan
  • 3 Level 4:2:1 Allocation Plan

Integrated Utilities

  • Distribution Wizard
  • Quick Calculation Pad
  • Likelihood Ratio Test
  • Overlay Plots (aka Multi-Plots)
  • Side-by-Side Plots
  • RS Draw® Metafile Graphics Editor
  • Monte Carlo Data
  • SimuMatic®
  • Data Set Life Comparison
  • Spreadsheets and Report Templates
  • Function Wizard
  • Quick Parameter Estimator
  • Quick Statistical Reference

Import Types

  • Microsoft Excel® Files
  • Text Files (*.txt. *.csv, *.prn, *.smc)
  • Weibull++/ALTA 6, 7 Files

Centralized Data Storage

  • Standard Repository (*.rsrp)
  • Microsoft SQL Server®
  • Oracle®
  • Simultaneous Access by Multiple Users
  • Shared Analysis Settings and Data
  • Flexible User Access Levels

Integration

Integration with all other Synthesis Platform applications (Weibull++, BlockSim, Xfmea and RCM++).

Multiple Languages Supported

For details, please visit www.ReliaSoft.com/languages/index.htm

Available Services

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