The reason for this is that this level describes the processes (if any) that fall under the level 1 sub-process.Īt this point, let’s focus on a crucial aspect of the data flow diagram.įor example, Databases DFD Level 2 for Inventory Management System DFD Level 2 for Inventory Management SystemĪmong the preceding levels, DFD level 2 has the highest concept abstraction. The next level, though, might pique your interest due to what it is and how it functions. You can stop working at this point because you already understand how the project will function overall. The suggested idea can be used as is or altered to serve your intended purpose. Then the transactions were saved in the database for inventory purposes.īe aware that the basis for these concepts comes from the basic activities associated with managing practical inventories. The system also manages the transactions and payments of each customer to complete the overall function. Its management will be based on the count of products and purchasing inputs. This enables the admin (owner) to manage the business efficiently. In the case of inventories, the system possesses an algorithm that automatically monitors and manages stocks for the establishment. Now, the system also has to keep track and manage the business sales, which happens when a customer buys something from the store through the system. This data is used for transactions, purchasing, and inventory purposes. The process of managing customer information includes the gathering of the customer’s basic data. Each of them complements in showing how exactly the inventory management system works. The given example reveals the sub-processes under inventory management. This level represents the context diagram’s “ extended viewpoint.” Level 1 DFD for Inventory Management System The first level DFD of the inventory management system describes each of the system’s primary sub-processes.
Level 1 DFD for Inventory Management System The external entities that cause the system to perform a certain function are as follows:Īs a result, the following illustrations begin at the system’s DFD level 0.
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