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  ## 4. Paddle Serving Underlying Framework
  -![Paddle-Serging Overall Architecture](framework.png)
  +![Paddle-Serging Overall Architecture](../framework.png)
  **Model Management Framework**: Connects model files of multiple machine learning platforms and provides a unified inference interface
  **Business Scheduling Framework**: Abstracts the calculation logic of various different inference models, provides a general DAG scheduling framework, and connects different operators through DAG diagrams to complete a prediction service together. This abstract model allows users to conveniently implement their own calculation logic, and at the same time facilitates operator sharing. (Users build their own forecasting services. A large part of their work is to build DAGs and provide operators.)
  