You are required to make a Vendor Application Inventory Platform in C#

Requirements for a Vendor Application Inventory Platform

Mandatory Functionality

$$ A data repository that stores and links together both structured and unstructured data for a vendor and their products. This type of information will be both in a structured and an unstructured format $($e$.$g$.,$ PDF documents, etc.$)$

$$ A user$-$friendly interface that allows authorized users to enter, maintain and view the vendor and their associated product$($s$)$ data. What a user can do in the system depends on their assigned access rights.

$$ User profile setup and maintenance with the ability to specify which type of functionality they can do in the system $($e$.$g$.,$ set up a new system record, maintain a system record, view information, etc.$).$

$$ Searching capabilities based on multiple user$-$selected criteria. Display the search results and be able to drill down into a specific result to get more details about the vendor and$/$or application.

$$ Be able to store and select a link to a vendor$$s website.

$$ Be able to select and open a PDF document that is attached to a specific vendor and$/$or their product$($s$)$ from within the system so that it can be viewed online.

Optional Functionality

$$ Create an on$-$line report that contains details of the selected system or systems. This report should be in PDF format and be able to be saved and$/$or printed. Optionally, create an Excel spreadsheet with the data.

$$ Identify when a new vendor entry is added to the system and when an existing vendor entry is updated. This can be done using a screen available in the system or by sending an email to users who indicate that they wish to receive one.

$$ Indicate when the information for a vendor should be reviewed based on the last review date entered. This can be done using a screen available in the system. The System Administrator should be able to specify the number of days from the current date after which the entry should be reviewed.

$$ If a specific vendor or product is selected, identify potentially similar applications $($e$.$g$.,$ like the, $$Frequently bought together$,$ functionality in Amazon.

$$ Allow users to leave comments for, and rate out of $5$ stars, the vendor and$/$or specific application. Be able to show the comments.