What is DFX in ICP?

Could you please explain what DFX stands for in the context of the Internet Computer Protocol (ICP)? I'm curious to understand how it fits into the overall architecture and functionality of the ICP ecosystem. As a practitioner in the field of cryptocurrency and finance, I'm particularly interested in its potential implications for decentralized finance (DeFi) and other emerging use cases. Additionally, I'd like to know if there are any specific benefits or advantages that DFX offers over other similar frameworks or solutions within the ICP environment.