Summary of Data and Procedures A stock maintenance system is a combination of technology (hardware and software) and processes and procedures that oversees the monitoring and maintenance of products stocked by a company. These products can be either company assets, raw materials, or finished products that are ready to be sent to vendors or end consumers. The new stock maintenance system for the company is to replace the existing maintenance system which is inefficient. The new stock maintenance system should allow the employee to record information of the items available and generate report based on the total amount of sales. The stock maintenance must take care of sales information of the company and must analyze the potential of the trade. The main aspects of stock maintenance system are described as follows: Stock Manager The stock manager logs in with the user name and the password. He analyses the stocks and identifies the list of items needed if items are out of stock or expired. Then he prepares purchase order with the list of items to be bought. Then he calls the company for quotations. After receiving the quotations from the companies, the stock manager choose the best quotation. Then the stock manager purchases the needed goods from the corresponding company. After delivery of all the goods by the company, payment is done and the goods are delivered by the company. Then the stock manager sells the goods to many customers and updates all the details in the database. By processing these steps the stock manager manages the stock available. Customer The customer has to login to the system and order for items. Supplier The supplier checks the order, supplies the items and receive payment Employee The employee can add, change, delete the information from the system and check the stock. New features/Requirements Mariya trading LLC has also requested that the following features should be incorporated into their new system: a) Reports Customer report This should provide the details of a customer and their purchase during certain time period. Quotation report This should provide the details of the quotations received from different companies for buying an item. b) Additional Features/Requirements You may also add any additional features which could be used within the new system. These must be discussed within the team and must be clearly documented. Note that the current system is a manual system - which uses various Forms. The new Software system will no longer use Forms - it will be fully computerised. 1 Develop a Use-Case Model a) Create a single Use Case Diagram for the new Software system b) Write Use Case Scenarios for THREE of the use cases you have identified. All of these Use Cases MUST be non trivial and NOT be similar to each other (One of the Use cases must be a Report or Invoice) Alternativel sad scenarios must be clearly identified - e. g in BOLD