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SYSTEM ENGINEERING
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SYSTEM ENGINEERING
I consider system engineering, or truly system and safety engineering, the main nucleus of my methodic, rational and engineering approach
in respect to problem solutions.
The concept of "system"
The concept of system is based upon physical-mathematical theories, included in the context of information and communication theory.
In particular, the concept of system achieved complete meaning and a deep root in Cibernetics , or rather in the theory of automatic controls, with extended consequences, not simply in engineering fields, but also in biological fields.
Indeed, starting from different physical systems with different engineering applications, in a strict sense (i.e., mechanical systems, electromagnetic systems, etc), we can investigate biological systems (with organic and inorganic chemistry skills) as multicell systems.
Besides the different possible applications, we have to underline the strong degree of abstraction and the importance of a complete and correct knowledge of physical-mathematical rigorous and formal methods, without which analysis and synthesis of systems wouldn't be possible.
In particular, the concept of system achieved complete meaning and a deep root in Cibernetics , or rather in the theory of automatic controls, with extended consequences, not simply in engineering fields, but also in biological fields.
Indeed, starting from different physical systems with different engineering applications, in a strict sense (i.e., mechanical systems, electromagnetic systems, etc), we can investigate biological systems (with organic and inorganic chemistry skills) as multicell systems.
Besides the different possible applications, we have to underline the strong degree of abstraction and the importance of a complete and correct knowledge of physical-mathematical rigorous and formal methods, without which analysis and synthesis of systems wouldn't be possible.
Performances, reliability and safety
A system has got to be characterized in definite, objective, so measurable, way, through the individuation of indicators of performance, hence, of efficiency.
These indicators (or parameters) of performance have to be identified in univocal, complete and coherent way in system analysis phase, assessing criteria and procedures of measurement of physical quantities involved in the generation of such indicators (parameters).
Going on over, a system has to guarantee reliability, determinable through the observation, the measurement and the calculation of the percentage of failure or damage.
However, in a rigorous way, with correct technics of analysis we have to distinguish between different types of system failure and damage, to have at disposal also efficient tools for prevention, as well as of diagnosis.
I mean that we have to overcome the simpe statistical approach (percentage and probability of system failure), that would tend to be riductionist and partial, completing the method with elements of prevention and of individuation of procedure of failure or damage system recovery.
Following this methodic path, it's clear that the passage from reliability assessment to considerations about system safety is quite short and logical.
Hence, the analysis of risks caused by malfunctioning systems becomes a direct consequence and a completion of the assessment for system reliability.
These indicators (or parameters) of performance have to be identified in univocal, complete and coherent way in system analysis phase, assessing criteria and procedures of measurement of physical quantities involved in the generation of such indicators (parameters).
Going on over, a system has to guarantee reliability, determinable through the observation, the measurement and the calculation of the percentage of failure or damage.
However, in a rigorous way, with correct technics of analysis we have to distinguish between different types of system failure and damage, to have at disposal also efficient tools for prevention, as well as of diagnosis.
I mean that we have to overcome the simpe statistical approach (percentage and probability of system failure), that would tend to be riductionist and partial, completing the method with elements of prevention and of individuation of procedure of failure or damage system recovery.
Following this methodic path, it's clear that the passage from reliability assessment to considerations about system safety is quite short and logical.
Hence, the analysis of risks caused by malfunctioning systems becomes a direct consequence and a completion of the assessment for system reliability.
Analysis and synthesis of systems: logical-matematical methods
System analysis and synthesis have got to be directed using accurate methods based on logic and, in particular, on mathematical logic.
Analysis method and tools exist, based not simply on natural language, but also on specific languages to define technical specifications and functional properties of a system.
Synthesis is created using formal tools of different types, in function of system type, too.
In particular, in information processing systems graphical tools are used, based on mathematical tools such as charts: tree charts, powerful and versatile tools, represent an important example.
Analysis and synthesis in time domain and in frequency domain.
In physical systems, analysis and synthesis in time domain represent two typical aspects, through which we can individuate mathematical tools, coming from differential calculus.
Anyway, there are also mathematical tools, that allow to have a domain, where you don't use a time variable, but a spectral variable such as frequency.
In this case you must be familiar with Fourier analysis, till the point of introducing and using the more recent and new wavelet analysis, that has got particular application in image processing.
Anyway, besides the abilities based on capacity of abstraction and of formalization of systems and of the related problems, we have to be able to read correctly and in a wise way the results and above all the formal tools offered by physical-matematical definitions.
Analysis method and tools exist, based not simply on natural language, but also on specific languages to define technical specifications and functional properties of a system.
Synthesis is created using formal tools of different types, in function of system type, too.
In particular, in information processing systems graphical tools are used, based on mathematical tools such as charts: tree charts, powerful and versatile tools, represent an important example.
Analysis and synthesis in time domain and in frequency domain.
In physical systems, analysis and synthesis in time domain represent two typical aspects, through which we can individuate mathematical tools, coming from differential calculus.
Anyway, there are also mathematical tools, that allow to have a domain, where you don't use a time variable, but a spectral variable such as frequency.
In this case you must be familiar with Fourier analysis, till the point of introducing and using the more recent and new wavelet analysis, that has got particular application in image processing.
Anyway, besides the abilities based on capacity of abstraction and of formalization of systems and of the related problems, we have to be able to read correctly and in a wise way the results and above all the formal tools offered by physical-matematical definitions.
Some remarks
System and safety engineering has got to have a wide vision and an analytical and coordinated approach, that presume
capacity of analytical and complete observation, ability of synthesis, good skills for an effective implementation and aimed to methodologies of validation and traceability.
System engineering methodologies have to lead to "de facto" standards, that can then become normative and legislation standards.
The results have to be obtained in efficient and transparent manners, passing through logical, formal, mathematical accuracy, pursued in the course of time and trained day by day.
In substance, in system and safety engineering, logical-mathematical and physical-mathematical abilities of abstraction, of analysis and of validation applied to system synthesis find an outstanding expression.
Starting from these formal and rational premises, the distinction appears in a clear way, in social-economical fields, between a human system based on efficient and traceable organization, aimed to the objectives, compared to a red-tape system based on nepotism principles.
System engineering methodologies have to lead to "de facto" standards, that can then become normative and legislation standards.
The results have to be obtained in efficient and transparent manners, passing through logical, formal, mathematical accuracy, pursued in the course of time and trained day by day.
In substance, in system and safety engineering, logical-mathematical and physical-mathematical abilities of abstraction, of analysis and of validation applied to system synthesis find an outstanding expression.
Starting from these formal and rational premises, the distinction appears in a clear way, in social-economical fields, between a human system based on efficient and traceable organization, aimed to the objectives, compared to a red-tape system based on nepotism principles.