use markdown mermaid, create a flowchat, The system's data model would consist of user profiles, knowledge database, and feedback data. User profiles would store user preferences and past interactions with the system. The knowledge database would contain relevant information on various topics. Feedback data would be used to improve the system's responses over time.

flowchart LR
A[User Profiles] --> B(Knowledge Database)
B --> C(Feedback Data)
C --> B

The above flowchart shows the data model of the system, which consists of user profiles, knowledge database, and feedback data. The user profiles store user preferences and past interactions with the system. The knowledge database contains relevant information on various topics that the system uses to provide responses to user queries. The feedback data is used to improve the system's responses over time. As users interact with the system, their feedback is collected and used to update the knowledge database and improve the accuracy and relevance of the responses provided by the system.

相关问题

Imagine that you are stakeholder and need to write ORD. Describe all wanted features, function, needed inputs and outputs. Also add collection of scenarios (system usage) and systems interaction with other system. Identify and draw 2-3 models (data, process and behavior) for the system by markdown mermaid.

As a stakeholder, I want to develop an online food ordering and delivery system that allows users to browse menus, place orders, and track deliveries. The system should have the following features and functions:

Features:
- User registration and login
- Menu browsing
- Order placement and modification
- Payment processing
- Delivery tracking
- Rating and feedback system
- Restaurant management interface

Functions:
- Users can browse menus from multiple restaurants
- Users can add items to their cart, modify their order, and place the order
- Users can pay for their order through the system
- Users can track their delivery status in real-time and receive notifications
- Users can rate their experience and provide feedback
- Restaurants can manage their menu, orders, and delivery status through an interface

Inputs:
- User login information
- Restaurant menu and order information
- Payment information

Outputs:
- Confirmation of order placement
- Delivery status updates
- Receipt of payment

Scenarios:
1. A user logs in to the system and browses menus from different restaurants. They add items to their cart, modify their order, and place the order. They pay using the system and receive confirmation of their order placement. They then track their delivery status and receive updates until the food is delivered.
2. A restaurant logs in to the system and updates their menu. They receive an order from a user, confirm the order, and update the delivery status. They receive feedback from the user and use it to improve their service.

System Interactions:
- The system interacts with payment gateways to process payments
- The system interacts with delivery services to provide real-time tracking
- The system interacts with restaurant management interfaces to update menus, orders, and delivery status

Data Model:

graph TD
A[User] -->|places order|B(Order)
B -->|contains|C(Item)
D[Restaurant] -->|offers menu|C
B -->|has payment information|E(Payment)
B -->|has delivery information|F(Delivery)

Process Model:

graph TD
A[User] -->|places order|B(Order)
B -->|selects items and quantity|C(Add Items)
B -->|modifies order|D(Modify Order)
B -->|confirm order|E(Confirm Order)
E -->|process payment|F(Payment)
F -->|initiate delivery|G(Delivery)
G -->|update delivery status|H(Delivery Status)

Behavior Model:

stateDiagram
[*] --> Login
Login --> Browse: User logs in
Browse --> Add: User selects items
Add --> Modify: User adds item to cart
Modify --> Confirm: User modifies order
Confirm --> Payment: User confirms order
Payment --> Delivery: Payment is processed
Delivery --> Feedback: Delivery status is updated
Feedback --> Browse: User provides feedback

markdown mermaid

Markdown Mermaid 是一种在 Markdown 编辑器中使用的库，用于绘制流程图、状态图、时序图和甘特图等。它可以通过在代码块中编写 Mermaid 代码来实现。Mermaid 是一个基于 JavaScript 的库，可以在本地进行渲染。它已经集成到了许多常见的 Markdown 编辑器中，例如 Typora。使用 Markdown Mermaid 可以方便地创建各种图表并将其嵌入到 Markdown 文档中。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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- *3* [Markdown绘图mermaid实用教程](https://blog.csdn.net/qq_32460819/article/details/121574296)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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