You are auditing Quick Technologies, Inc. $($QTI$).$ QTI is a manufacturer of various computer technologies and works hard on bringing new technologies to market. QTI has approximately $4,000$ customers $($some with multiple locations$).$ On average, QTI sells its inventory every $45$ days, and it takes approximately $33$ days to collect receivables. QTI has also experienced a high degree of competitiveness and technological obsolescence. The company has found that the average product life is between $9$ and $15$ months.

Identify a potential application for ADA in the audit of QTI. Explain the account and the assertion$($s$)$ tested by the application.