This book presents a scientific theory of Networked information technology (NIT) systems and logically develops the fundamental principles to help synthesize control and coordination algorithms for these systems. The algorithms described are asynchronous, distributed decision-making (ADDM) algorithms, and their characteristics include correct operation, robustness, reliability, scalability, stability, survivability, and performance. The book explains through case studies the conception, development, experimental testing, validation, and rigorous performance analysis of practical ADDM algorithms for real-world systems from a number of diverse disciplines. Practitioners, professionals, and advanced students will find the book an authoritative resource for the design and analysis of NIT systems algorithms. Topics and features: Develops a logical and practical approach to synthesizing ADDM algorithms for NIT systems Utilizes a scientific method to address the design testing of NIT systems Incorporates case studies to clearly convey principles and real-world applications Provides a full context for engineers who design, build, deploy, maintain, and refine network-centric systems spanning many human activities Offers background on core principles underlying the nature of network-centric systems