This book focuses on decision-making within information systems for managing technical projects. It emphasizes the development of mathematical and algorithmic tools to support informed decision-making through advanced information technologies. The first part examines decision-making procedures from a systems perspective, applied to the most common methods. The content is supplemented with numerical examples and practical recommendations for using software tools. Intended for university students studying in the field of Radioelectronic Devices Design and Technology (specialty 200800), as well as related programs 210200 and 211000. It is suitable for those exploring theoretical courses, laboratory work, coursework, and diploma projects that involve computer-supported decision-making in project design. The book also serves engineers, graduate students, and educators engaged in scientific research in automation of design and technological processes, as well as expert systems.