In Python code: Process: The user (client) requests data from the (server) database. The database sends back the data to the user. At acquisition of the data an XYPlot is drawn. DataFile: USAStates2020.csv User Layer: The user selects a country, and passes the country name to the Business Layer. Use TKinter to produce a UI for the user to select a country. Send the selected country to the Business Layer. Business Layer: Receives the information from the User Layer and constructs a SQL query to send to the Data Layer. The query extracts the yearly data (1970,2020) for the requested country. The data may be queried either country year-by-year or in one query for year range. After receiving the JSON string back from the Data Layer, send the data to the Graphic Layer for plotting. Data Layer: Construct a SQL Database based on the data from the DataFile. Processes the queries from the Business Layer. Sends back a JSON string for the requested query. Graphic Layer: Create a graphics class to plot the MatPlotLib XYPlot. Server Layer: The database access is controlled by the Server Socket. The client sends a query, and the server sends a JSON string. Client Socket: Requests data from the server. After receiving the data from the server, the client displays the data.
In Python code:
Process:
The user (client) requests data from the (server)
DataFile:
USAStates2020.csv
User Layer:
The user selects a country, and passes the country name to the Business Layer. Use TKinter to produce a UI for the user to select a country. Send the selected country to the Business Layer.
Business Layer:
Receives the information from the User Layer and constructs a SQL query to send to the Data Layer. The query extracts the yearly data (1970,2020) for the requested country. The data may be queried either country year-by-year or in one query for year range. After receiving the JSON string back from the Data Layer, send the data to the Graphic Layer for plotting.
Data Layer:
Construct a SQL Database based on the data from the DataFile. Processes the queries from the Business Layer. Sends back a JSON string for the requested query.
Graphic Layer:
Create a graphics class to plot the MatPlotLib XYPlot.
Server Layer:
The database access is controlled by the Server Socket. The client sends a query, and the server sends a JSON string.
Client Socket:
Requests data from the server. After receiving the data from the server, the client displays the data.
1. Programming is the process of creating a set of instructions that tells a computer how to perform a task.
2. Programs can be written in computer programming languages such as JavaScript, Python, and C++.
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