Create a Reliability Growth Analysis From Cumulative Operating Time Using an Existing Query or Dataset

If you record event-based data using operating time instead of failure dates (e.g., a failure occurred after the piece of equipment was running for 10 days), then you can create a Reliability Growth Analysis using event-based data and cumulative operating time (COT).

Note: A minimum of three failure datapoints are necessary to perform a calculation.

Steps

  1. Access the RA Overview page.

  2. In the upper-right corner of the page, select New Analysis, and then select Reliability Growth.

    The Reliability Growth Builder window appears.

    Define New Analysis

    Note: All required information is provided, but for additional information, consult the Reliability Growth and Measurement Data topics.

  3. Enter values in the Analysis Name and Description boxes for the new analysis, and then select Next.

    The Select Data Source Type screen appears. The Data will be based on an existing Query is selected by default.

    Select Data Source Type

  4. If you want to load data using an existing query, select Next.

    The Select Query screen appears.

    Select Query

    -or-

    If you want to load data using an existing dataset, select Data will be based on an existing Dataset, and then select Next.

    The Select Dataset screen appears.

    Select Dataset

  5. Select Browse to search for an existing query or dataset in the GE Digital APM Catalog.

    The Query Browser or Dataset Browser screen appears, depending on whether you selected Data will be based on an existing Query or Data will be based on an existing Dataset in the previous step.

    The following image shows the screen to select a query:

    Select a Query From a Catalog

  6. Select the needed query or dataset from the Catalog, and then select Open.

    The complete path to the query or dataset is displayed in the Query or Dataset box. The fields that exist for the selected query or dataset appear in the Available Fields list.

    The following image shows the path to a selected query and the fields in the Available Fields list:

  7. In the Includes Data From the Following Sites list, select the site(s) whose data from which you want to create an analysis.

    Note: If you are creating an analysis in a database that has only one site stored in the Site Reference family, then the Includes Data From the Following Sites list will not appear on the Select Query screen.

  8. Select Next.

    The Select Data Format screen appears.

    Select Data Format

  9. On the Select Data Format screen, specify the following:

    Note: These instructions assume that you will select Data is event count (e.g. Number of failures) and leave the Measurement Name box with the default value Failures.

  10. Select Next.

    The Select Data Fields screen appears.

    Select Data Fields

  11. Select the columns from your query or dataset that you want to map to the Reliability Growth Analysis. The available columns are:

  12. Select Next.

    The Analysis Start Time screen appears. The I want to use the time of the first data point as the start time for this analysis check box is selected by default.

    Analysis Start Time

  13. Specify the start time of the analysis.

    Note: If you did not select a field in the Date list on the Select Data Fields screen, the field is disabled. If you selected a field that did not contain a date in every row, a message will appear, stating that one or more failure dates are missing and that dates will not be estimated in the analysis.

  14. Select Finish.

    The GE Digital APM system generates the analysis and the Reliability Growth page appears, displaying the analysis results.

    Analysis Summary

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