Publishing Models from Analysis Results

For reliability growth data analysis only.

Once a data sheet has been analyzed, you can publish the results as a model. To publish a model based on the analysis results, click the Publish to Model icon on the Publishing page of the control panel.

The type of model that will be published depends on the data type and growth model that you are working with:

• For discrete data types (Multi-Phase Mixed data sheet and Discrete data sheets), the results are in terms of the demonstrated reliability, so the published model will be a fixed reliability value.
• For all other developmental data, the results are based on the reliability growth process; therefore, the published model will be a 1-parameter exponential distribution with a mean time equal to the demonstrated MTBF.
• For fielded data analyzed with the Power Law model, the published model will be a 2-parameter Weibull distribution, where the beta parameter indicates whether the system is exhibiting wearout, infant mortality or a constant failure rate (beta = 1). If the data are analyzed with the Crow Extended model, the published model will be a 1-parameter exponential distribution with a mean time equal to the instantaneous MTBF at the termination time.

All other tools for working with the published model, such as displaying its properties and tracing its usage, are on the Publishing page of the growth data folio's control panel.