الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
This thesis is directed towards investigating the various aspect of the new concept of consolidity which is one of the important elements in the formulation of the system change pathway, which is essentially based on the newly developed system paradigm of ”Time driven-event driven-parameters change”, was revealed a huge impact when applied. This gives rise of the necessity of emphasizing ”consolidity” concept in the modeling, design and analysis of real life man-made and natural systems together with the two previously well known system concepts controllability and stability. The attained results in many applications (solving the problem of selecting the arbitrary matrix in Lyapunov equation, also the Kalman Riccati matrix in solving LQR, some application such as temperature control also by appropriate choice of parameters for some application such as temperature control, liquid-level control and design of many applications such as ship autopilot process and are the disk drive, the national economy and the drug concentration) confirm the importance of incorporation of the system consolidity as an essential pillar in both system analysis and design. Finally, steps towards building new types of systems with strong consolidity while maintaining excellent controllability and stability are strongly emphasized.