Abstract: A method, implemented on a computing device, for determining defects per unit of a product is disclosed. The method initiates with generating a data retrieval session between a processor and a database server. Thereafter, a product test data from the database server is retrieved based on a query executed by the processor. A data updating session between the database server and a plurality of data sources is then generated. The data updating session is terminated during retrieval of the product test data. Additionally, the product test data retrieved is inaccessible by the plurality of data sources. Moreover, the defects per unit is displayed through a display unit. The database server reactivates the data updating session with the data sources in response to the conclusion of the display of the defects per unit.