Our main focus is to accurately and efficiently identify and provide accurate, timely, and comprehensive diagnoses to aid in the prevention and control of pig diseases in the swine industry. Using PDDES, veterinarians, farmers, and other swine industry professionals can quickly identify and treat diseases to minimize their impact on pig production and profitability. PDDES can analyze various data inputs, including clinical symptoms, laboratory test results, and epidemiological information of twelve pig diseases, to accurately diagnose the disease and provide recommendations for treatment and prevention measures to control the spread of the disease. Based on the data available and instructions given by the veterinarians and subject-matter experts, the twelve pig diseases and their clinical indications or symptoms were determined and Aiken's value index was calculated. The weighted matrix was created for a number of different clinical indicators or symptoms related to swine illnesses. Based on this, an expert system was developed as a computer program or online application.