Designing a system is a process of creating components, elements, etc for a known desired outcome or specification.
Any system can be defined as below,
When desired output and available input resources are already known then a system is created in such a way that desired output can be achieved.
Difference between system design and system analysis
In the process of system design,
Both desired output, as well as available inputs, are known and a system is designed that meets the requirements.
On the other hand,
When a system is analyzed the inputs are known, the system is already in place, and output is predicted.
We will study the example of a used engine below, Let's first understand what analysis means.
Suppose I have found a used engine in a working condition and I do not know its specifications and I do not know what brand it is. I want to find out how it performs. So, I test this engine in a lab.
Suppose I have a total of 10 liters of fuel with me. But, I can only fill one liter of fuel in the engine tank at a time. So, I decide to do 10 different experiments. Each time, I put one liter of fuel in the engine and I check how much time the engine would run at a specific speed. I repeat this experiment 10 times for 10 different speeds. I plot a graph of different speeds vs engine running times. When I want to know the engine running time at an intermediate speed I can easily predict from the above data. This is nothing but an analysis of the system.
Now let's understand what designing a system means.
Suppose, I don't have an engine in the first place. I only know that I have only one liter of fuel. I also know that the engine must run at some specific speed and for the exact given amount of time. Now I design an engine (system) to meet the above specifications. This is nothing but a system design approach.
What does designing a system mean?
Designing a system is a process of creating components, elements, etc for a known desired outcome or specification.
Any system can be defined as below,
When desired output and available input resources are already known then a system is created in such a way that desired output can be achieved.
In the process of system design,
Both desired output, as well as available inputs, are known and a system is designed that meets the requirements.
On the other hand,
When a system is analyzed the inputs are known, the system is already in place, and output is predicted.
We will study the example of a used engine below, Let's first understand what analysis means.
Suppose I have found a used engine in a working condition and I do not know its specifications and I do not know what brand it is. I want to find out how it performs. So, I test this engine in a lab.
Suppose I have a total of 10 liters of fuel with me. But, I can only fill one liter of fuel in the engine tank at a time. So, I decide to do 10 different experiments. Each time, I put one liter of fuel in the engine and I check how much time the engine would run at a specific speed. I repeat this experiment 10 times for 10 different speeds. I plot a graph of different speeds vs engine running times. When I want to know the engine running time at an intermediate speed I can easily predict from the above data. This is nothing but an analysis of the system.
Now let's understand what designing a system means.
Suppose, I don't have an engine in the first place. I only know that I have only one liter of fuel. I also know that the engine must run at some specific speed and for the exact given amount of time. Now I design an engine (system) to meet the above specifications. This is nothing but a system design approach.