What is the difference between 1inch and OpenOcean?

Can you elaborate on the key differences between 1INCH and OpenOcean in the realm of cryptocurrency and decentralized finance? Are there specific features or functionalities that set them apart, catering to different user needs and preferences within the DeFi ecosystem? Additionally, how do their approaches to liquidity aggregation and transaction execution compare, and what implications might this have for traders seeking to optimize their performance and cost-efficiency?