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Activity Description: The aim of this activity to check students' understating about modeling the system functionality using the Data Flow Diagram (DFD) technique. Student will learn how draw the logical DFD for the given case study using Online Visual Paradigm editor. The expected outcome is neatly create and labeled diagrams, which represents context and level 0 DFD.

Activity Description: The aim of this activity to check students' understating about modeling the system functionality using the Data Flow Diagram (DFD) technique. Student will learn how draw the logical DFD for the given case study using Online Visual Paradigm editor. The expected outcome is neatly create and labeled diagrams, which represents context and level 0 DFD.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Activity Description: The aim of this activity to check students' understating about modeling the system functionality using the Data Flow Diagram (DFD) technique. Student will learn how draw the logical DFD for the given case study using Online Visual Paradigm editor. The expected outcome is neatly create and labeled diagrams, which represents context and level 0 DFD. Activity: Case Study (2): World's Trend Catalog Division Case -2: World's Trend Catalog Division World's Trend is a mail order supplier of high-quality, fashionable clothing. Customers place orders by telephone, by mailing an order form included with each catalog, or via the Web site. When customer orders come in, the item master and the customer master files are both updated. If an item is out of stock, the inventory control department is notified. If the order is from a new customer, a new record is created in the customer master file. Picking slips are produced for the customer order and sent to the warehouse. A shipping statement is prepared. The process of shipping a customer order involves getting the goods from the warehouse and matching up the customer shipping statement, getting the correct customer address, and shipping it all to the customer. The customer statement is generated, and a billing statement is sent to a customer once a month. An accounts receivable report is sent to the accounting department. Step-1: Identify Entities Customer ● Inventory Warehouse ● Accounting Step-2: Identify Processes ● Add Customer Info. Add Customer Order ● Produce Picking Slip ● Prepare Shipping Statement ● Ship Customer Order Create Customer Statement Produce Account Receivable Step-2: Identify Data Stores ● Customer File Items File If you know that the parent process (3) - PRODUCE PICKING LIST have the following child subprocesses: 1. Read Item Record (from Items File) 2. Create Order Record (to Order Item File) 3. Sort Item by Location in Warehouse (to sorted orders file) 4. Get Customer Records (from Customer File) 5. Print Order Picking Slip Question: Draw the child DFD (Level 3 Data Flow Diagram) for the mentioned process.
Transcribed Image Text:Activity Description: The aim of this activity to check students' understating about modeling the system functionality using the Data Flow Diagram (DFD) technique. Student will learn how draw the logical DFD for the given case study using Online Visual Paradigm editor. The expected outcome is neatly create and labeled diagrams, which represents context and level 0 DFD. Activity: Case Study (2): World's Trend Catalog Division Case -2: World's Trend Catalog Division World's Trend is a mail order supplier of high-quality, fashionable clothing. Customers place orders by telephone, by mailing an order form included with each catalog, or via the Web site. When customer orders come in, the item master and the customer master files are both updated. If an item is out of stock, the inventory control department is notified. If the order is from a new customer, a new record is created in the customer master file. Picking slips are produced for the customer order and sent to the warehouse. A shipping statement is prepared. The process of shipping a customer order involves getting the goods from the warehouse and matching up the customer shipping statement, getting the correct customer address, and shipping it all to the customer. The customer statement is generated, and a billing statement is sent to a customer once a month. An accounts receivable report is sent to the accounting department. Step-1: Identify Entities Customer ● Inventory Warehouse ● Accounting Step-2: Identify Processes ● Add Customer Info. Add Customer Order ● Produce Picking Slip ● Prepare Shipping Statement ● Ship Customer Order Create Customer Statement Produce Account Receivable Step-2: Identify Data Stores ● Customer File Items File If you know that the parent process (3) - PRODUCE PICKING LIST have the following child subprocesses: 1. Read Item Record (from Items File) 2. Create Order Record (to Order Item File) 3. Sort Item by Location in Warehouse (to sorted orders file) 4. Get Customer Records (from Customer File) 5. Print Order Picking Slip Question: Draw the child DFD (Level 3 Data Flow Diagram) for the mentioned process.
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A DFD , 'data flow diagram'  is a graphical representation of the drift of the information thru an records machine. A DFD provide an outline of the machine which  can be complex  further at exclusive degrees. A DFD  has 0,1,2 or past degrees. Specifically 3 levels are used that are:

level 0 DFD
level 0 DFD
level 2 DFD

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