What is a potential disadvantage of the Single Application Model?

The Single Application Model can present a potential disadvantage in terms of scalability. This model typically involves developing and deploying a single, monolithic application that encompasses all required functionalities. As the demand for performance or additional features grows, scaling this type of application can become challenging.

Monolithic architectures often require the entire application to be updated or redeployed when a change is necessary, which can lead to downtime and increased complexity in managing the application's growth. This contrasts with more modular approaches, such as microservices architecture, where individual components can be scaled independently, thus allowing for more agile responses to increased load or changing requirements.

While other aspects like hardware costs, compatibility, and software complexity may also pose challenges, the limited scalability in the Single Application Model is particularly noteworthy as it can hinder an organization's ability to respond effectively to evolving needs over time.