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So what are the design models used in this scenario of business? first is entity of relationship.
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Where it is known as a graphical representation that depicts relationship among places, people, objects, concepts or events within an information technology system.
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For example, this is a representation of customers in the bank sector.
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Like what is their identity? what is their account? what is from which place they are from? everything is being based in collection in this representation.
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Second is hierarchical model.
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In hierarchical model, this database consists of collection of records that are connected to each other through links.
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That is, this record is similar to the record in the network model.
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Each record is a collection of fields or attributes.
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Each which contains only one data value, a link which is association between precisely two records...