Weibull Analysis Irregular Input of Test Units in suspended Data

[Pooja]

We are producing some component, which takes 2 Months or so, once the component is ready we are putting it for testing to observe failure time. In this process our input of new component to test-bed is continuing and failure time of failed component is under recording, Now we want the test to terminate at this time and rest of the components are treated as suspended time.
Using Weibull++6, How to enter this data is not very clear to me.

[tarik]

In Weibull++ 6, when you create a new project, you can specify that the type of data you have in the Data Type Expert window. According to your description, you need to chose “Times to Failure” and “with Right Censored Data (Suspensions)”, you might need to make additional choices depending on the type of data you have.
Once you are in the Folio, then you can enter failure times and specific the state as “F” (failure) and suspensions times and specify the state as “S”.
For more info about data types refer to: http://www.weibull.com/LifeDataWeb/data_and_data_types.htm, http://www.weibull.com/LifeDataWeb/data_types_and_weibull++.htm (http://www.weibull.com/LifeDataWeb/data_types_and_weibull++.htm).

[Pooja]

My Data is not matching the data type described in references. Please give me more information, a sample data available with me is like this:
Unit-1, Test Start date 21.01.04, Working
Unit-2, Test Start Date 02.03.04, Failed
Unit-3, Test Start Date 07.07.04, working
Unit-4, Test start Date 09.09.04, working
Unit-5, Test start date 01.12.04, working
unit-6, Test Start Date 04.03.05, Failed
and so on...
In this case all components (Units) start time is not same.
Pooja

[tarik]

In that case you should calculate the time duration between the start date and the failure date or suspension date and enter that time duration into the folio.

You can also enter the data you have with the dates using another data type (called dates-to-failure (under Warranty)), which will be available in the next version of Weibull (Weibull 7), due to be released very soon.