What is the importance of lock and key?

Question

The systematic control of locks and keys is one of the most important components of any security program. Without proper key control, locks provide little deterrence to illegal or unauthorized entry into a facility.

What is the importance of a key?

You must have some means of accurately identifying each instance, and a key is the device that allows you to do so. They help establish and enforce various types of integrity. Keys are a major component of table-level integrity and relationship-level integrity.

What is the importance of locks in our daily life?

For centuries locks have been part of our lives we all want to keep our belonging save and our homes too. Door locks are used for security and protection. No one wants to live in a house that does not have a door and locks. It is important to have door locks so that we feel secure in our homes.

What are the lock and key?

A lock and key refers to the combination that enables a door to be securely closed. The combination relies upon the individual fit of a protruding object (the key) and a receptor (the lock).

Why is it important that a metal key and the lock it fits into be made of the same or similar materials?

In terms of thermal expansion, why is it important that a key and its lock be made of the same or similar materials? If they expanded differently, as for different materials, the key and lock wouldn't match.

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