Your start$-$up company develops apps for other businesses $($B$2$B$).$ You have three clients: one makes educational toys, another makes culinary equipment $($bread and pasta makers, etc.$)$ and another makes PPEs $($Personal Protective Equipment such as medical face masks, smocks, rubber gloves, etc.$)$

During the current pandemic, there is a strong demand for all of these products, so your client companies are busy. However, your clients must reduce face to face contact as much as possible.

Therefore, these client companies all need an app $($the same app should be able to work for all three companies$)$ that will allow them to communicate with their suppliers $($companies that provide them with parts for their products$)$ and also with their retail outlets $($stores that sell the products to the public$).$ The app should be able to create sales and informational meetings with their distributors and retail outlets, to have webinars on how to do business under pandemic conditions, and also to survey their suppliers and distributors to find out how their needs have changed.

Possible Use Cases

$***$Note that you may add others $$ only short summaries for this scenario.

Upload a Contact $($could be at the Client, or at a Retailer or a Supplier$)$

Upload and identify a new $$Product$$ this is just an item that gives a Product a name, description, version number, and attaches a Group $($of Contacts at suppliers and distributors$)$ to the Product.

Form Groups of Contacts by Product of interest $($say$,$ face mask or bread maker, etc.$)$ who will participate in sales meetings, get information about new products from your client, attend Webinars and also they will be forwarded interesting developments in the field

Message Product team members

Create focus groups of Contacts $($to solicit information on specific Products$)$

Create list of posted Webinars $($date$,$ time, length of seminar, link$)($Background: For example, $$New ways to do business in the pandemic environment$,$Innovations in the field$,$ etc.$)$

Q$23>>(36$ marks$=18+18)$ Based on this $$Scenario A$,$ you will answer$/$deliver the following:

Draw one $(1)$ Use Case DIAGRAM that includes all the above cases

Draw one $(1)$ Class Diagram $($that might work for the above cases$)$