The development of digital technology today impacts every sector of human life. The need for fast, precise, accurate information is the key and a strong reason to implement technology in the management of business activities. Leksana Batik Jaya is one of the manufacturing industries engaged in batik crafts that require an integrated and computerized transaction processing system to manage its business activities. The design and construction of the system are carried out by the Prototyping method with the Unified Modeling Language. This system can process purchases and sales transactions into a purchase report, purchase return report, sales report, consignment receivables report, cash receipt and disbursement report, and profitability report.