Abstract factory pattern

The Universal Call Center company is growing very fast, and they have a small Force.com application where agents can log a request to place an order for a new computer. Developers have just learned about the factory method design pattern and are very excited to implement the same design pattern in this scenario as well. They decided to create an interface of the computer type and its different implementations, such as high-configuration and low-configuration computers. However, they were disappointed when they heard that they need to support various types of configurations other than low and high configurations. For example, some computers need high end processors but small monitors and less storage. There were a few requests regarding an average processor but an LCD monitor and SSD storage.

By this time, developers realized that the factory method pattern cannot be used in this scenario. Let's see how they solved this problem.

The abstract factory pattern is used...