Key Concept

Node

Nodes are the key components of a workflow. By connecting nodes with different functionalities, a series of operations within the workflow are executed. Nodes are categorized by type:

• Basic Nodes：Start, End, Answer, LLM, Knowledge Retrieval, Applications (coming soon)

• Question Understand：Quesition Classifier，Question Rewriting (coming soon), Sub-question Splitting (coming soon)

• Logic Processing：IF/ELSE, Merge (coming soon), Loop (coming soon)

• Transformation：Code, Template， Variable Assigner, Function Extraction (coming soon)

• Others：HTTP Request

• Tools：Built-in Tools, Custom Tools

Variables

Variables are crucial for linking the input and output of nodes within a workflow, facilitating the implementation of complex processing logic throughout the process.

• Workflows need to define input variables for initiating execution or conversation.

• Nodes require input variables for initiation; for instance, the input variable for a question classifier typically consists of the user's question.

• Variables referenced within a node can only be those from preceding process nodes to ensure coherence and avoid duplication.

• To prevent variable name duplication, node names must be unique.

• The output variables of a node are fixed by the system and are not subject to modification.

Differences between Chatflow and Workflow

Application Scenario Differences

• Chatflow: Targets conversational scenarios and represents an advanced orchestration mode for Chatbot application types.

• Workflow: Geared towards automation and batch processing scenarios.

Differences in Nodes

Node	Chatflow	Workflow
Start	Utilizes system-built variables for user input and file uploads	Utilizes system-built variables for file uploads
End	Not support End node	Uses an End node to output structured text at the conclusion of execution, which is not designed for mid-process output.
Answer	The Answer node is used for streaming output or fixed text replies and can be utilized mid-process.	Not support Answer node
LLM	Memory is automatically enabled to store and pass on the history of multi-turn dialogues.	Not support Memory configuration
Question Classifier	Memory is automatically enabled to store and pass on the history of multi-turn dialogues.	Not Support Memory configuration

Application Entry Division

• Chatflow Entry:

• Workflow Entry: