Please Create a Level 1 dfd diagram based on the usecase below Use case name: data retriving Actor: business analyst description of problem: Business analysis is carried out using Excel Spreadsheets. The documents, invoices, and other data must be manually looked for and obtained before a judgment is made. Due to the lengthy procedure, the analyst is obliged to make conclusions without the required information. The objective is to automatically extract data from paper or digital invoices and deliver it to the analyst in a timely and effective manner to help his decision-making. preconditions: analyst has access to the invoice data he needs to perform his business analysis. The data is available in a paper or computerized format. information for the steps (course of action): After logging into the system, the analyst chooses to retrieve invoice data for analysis. In order to focus the search for the required data, the system asks the analyst to define the date range and other relevant criteria The analyst sends the query after entering the necessary data. The system extracts the necessary data from the paper or digitized invoices using optical character recognition (OCR) or other technology. The analyst can easily analyze the structured format in which the system presents the retrieved data, such as an Excel spreadsheet or a dashboard. The analyst reviews the data and uses it to make informed decisions about the business. post conditions: The analyst has the information required to complete his business analysis quickly and effectively. The invoice data was retrieved by the system, and it was then saved in a database or other repository for later use..

1. Please Create a Level 1 dfd diagram based on the usecase below
Use case name: data retriving
Actor: business analyst
description of problem: Business analysis is carried out using Excel Spreadsheets. The
documents, invoices, and other data must be manually looked for and obtained before a judgment
is made. Due to the lengthy procedure, the analyst is obliged to make conclusions without the
required information. The objective is to automatically extract data from paper or digital invoices
and deliver it to the analyst in a timely and effective manner to help his decision-making.
preconditions:
analyst has access to the invoice data he needs to perform his business analysis.
The data is available in a paper or computerized format.
information for the steps (course of action):
After logging into the system, the analyst chooses to retrieve invoice data for analysis.
In order to focus the search for the required data, the system asks the analyst to define the date
range and other relevant criteria
The analyst sends the query after entering the necessary data.
The system extracts the necessary data from the paper or digitized invoices using optical
character recognition (OCR) or other technology.
The analyst can easily analyze the structured format in which the system presents the retrieved
data, such as an Excel spreadsheet or a dashboard.
The analyst reviews the data and uses it to make informed decisions about the business.
post conditions:
The analyst has the information required to complete his business analysis quickly and effectively.
The invoice data was retrieved by the system, and it was then saved in a database or other
repository for later use.