Question

Explain the advantages and disadvantages of coarse-grained access control with an example.

Answer 1

A coarse grained access control system is formed of larger components fewer in number . The fine grained services are wrapped together to form a coarse grained system.

The example of a coarse grained system can be a bank account Consisting of Name , address , balance, last update and  transaction details of a customer.

The other example can be a hospital system where patients have no access of inside system by healthcare providers have access to all patients.

The advantages and Disadvantages of Coarse-grained access control are :

Advantages:

A system performs very well when a group of fine grained operations are brought together to form coarse system for example shared memory where threads belong to a process

Small number of cells are required to perform many operations in coarse grained access control system

Disadvantages :

If a access control system is too much coarse grained the transactions in the system are not performed correctly .

It has high design complexity when compared to fine grained access control system.