The rise of artificial intelligence$-$powered chat$-$bots has revolutionised the way

businesses interact with their customers and users. Chat$-$bots like ChatGPT have

become integral parts of numerous online platforms, offering personalised assistance,

engaging conversations, and efficient information retrieval.

Your task is to design an entity$-$relationship diagram $($ERD$)$ for an advanced

chatbot system that can handle a wide range of functionalities and data management

tasks. The system should be capable of managing user accounts, facilitating

conversations between users, storing and retrieving messages, tracking user

preferences, integrating with external services, and logging system activities.

Requirements:

The system should support the registration and management of user accounts.

Users can have various attributes such as username, email, profile picture, and

user$-$specific details like age, gender, and location. User roles $($e$.$g$.,$ admin,

moderator, regular user$)$ should also be considered.

Users should be able to engage in conversations, which can be one$-$on$-$one or

group conversations. Each conversation should have metadata such as creation

time, participants, and conversation type.

The system should allow users to send and receive messages within

conversations. Messages may contain text, media files, or attachments. Message

metadata such as sender$,$ recipient, timestamp, and message content should be

stored.

Topics can be assigned to conversations to categorize discussions. Each topic

should have a unique identifier, a name, a description, and a category.

Users should be able to set preferences such as preferred topics, notification

settings, and language preferences. These preferences should be stored and

associated with each user account.

The system should support integration with external services, enabling additional

functionalities such as accessing external databases, performing actions on

external platforms, or fetching real$-$time information from external sources.

All system activities, including user logins$,$ logouts$,$ message exchanges, and

interactions with external services, should be logged for monitoring, analysis, and

security purposes. Logged data should include timestamps, user identifiers,

actions performed, and relevant details.

You are required to create an entity$-$relationship diagram $($ERD$)$ that captures the

various entities, attributes, and relationships involved in the design of the chat$-$bot

system. The diagram should be well$-$organized, clearly illustrating the structure of the

database schema and the connections between different components of the system. please DONT USE CHATGPT and PLEASE BE CREATIVE. Try to make the diagram simple yet explainable