<p class="MsoNormal" style="margin-bottom: 0cm; line-height: normal;"><span lang="EN-US" style="font-size: 10.0pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; color: black; background: white; mso-ansi-language: EN-US;">This volume constitutes the refereed proceedings of the </span><span lang="EN-US" style="font-size: 10.0pt; mso-ansi-language: EN-US;">7th International Workshop on AI System Engineering: Math, Modelling and Software, AISys 2025 and the First International Workshop on Optimisation of Industrial Production with AI Algorithms, AI4IP, co-located with</span><span lang="EN-US" style="font-size: 10.0pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; color: black; background: white; mso-ansi-language: EN-US;"> the 36th International Conference on Database and Expert Systems Applications, DEXA 2025, which took place in Bangkok, Thailand, during August 25-27, 2025.<br></br></span><span lang="EN-US" style="font-size: 10.0pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; color: black; background: white; mso-ansi-language: EN-US;">The 11 full papers were thoroughly reviewed and selected from a total of 23 submissions. They are organized in topical sections as follows: AI System Engineering: Math, Modelling and Software; and Optimization of Industrial Production with AI Algorithms.</span></p>