A summary of the provided content in a paragraph. The audit of Double Ink Printers Ltd (DIPL) can be affected by three types of factors: accounting, operational and technological. Accounting factors refer to the method of recording transactions, which if incorrect, can lead to faulty audits and affect materiality. Operational factors include business policies such as print-on-demand, which can vary preliminary sales figures and depreciation rates. Technological factors represent the adoption of new and better methods of technology, which can provide accurate audit results and full material evidence. These factors can influence the preliminary figure for materiality, making it important to consider them in the auditing process.