Draw the Entity- Relationship Diagram (ERD) for the following scenario: A salesperson may manage many other salespeople. A salesperson is managed by only one salespeople. A salesperson can be an agent for many customers. A customer is managed by one salespeople. A customer can place many orders. An order can be placed by one customer. An order lists many inventory items. When the order is made for number of inventory items‚ the date and the amount is recorded. An inventory item may be listed
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The procedure for producing a data flow diagram • Identify and list external entities providing inputs/receiving outputs from system; • Identify and list inputs from/outputs to external entities; • Draw a context DFD Defines the scope and boundary for the system and project 1. Think of the system as a container (black box) 2. Ignore the inner workings of the container 3. Ask end-users for the events the system must respond to 4. For each event
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Pher Pher A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system‚ modeling its process aspects. Often they are a preliminary step used to create an overview of the system which can later be elaborated.[2] DFDs can also be used for the visualization of data processing (structured design). A DFD shows what kinds of data will be input to and output from the system‚ where the data will come from and go to‚ and where the data will be stored. It
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3.9.2 Data Flow Diagram (DFD) DFD or Data Flow Diagram is a graphical representation that showing the flow of data of information system. It also shows the structured design of the program to replace the flowchart or pseudo code as program tool. Basically DFD can be divided into four components such as entity or external entity‚ process‚ data store and data flow. DFD start with an overview of the system that needs to be designed. This DFD known as context DFD that contain the entity and the process
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SYSTEMS ANALYSIS AND DESIGN DOCUMENTATION OUTLINE PRELIMINARIES PAGE Title Page i Evaluation Sheet ii Dedication iii Acknowledgement iv Abstract v Table of Contents vi List of Tables vii List of Figures viii CHAPTER 1 CURRENT SYSTEM A. Company Background 1. History of the Company 2. Company Products / Service and Clients 3. Organizational Charts / Divisions and Departments 4. Locale of the Study (with Map) B. Overview of the Current System C. Context Diagram
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EXISTING POINT OF SALES BLOCK DIAGRAM PACKAGING OF ITEMS GENERATING RECEIPT (MANUALLY) COMPUTING OF TOTAL PRICE SEARCHING OF ITEM ORDER OF ITEM CONTEXT DIAGRAM ORDER OF ITEM SEARCHING OF ITEM COMPUTING THE TOTAL PRICE GENERATING RECEIPT (MANUALLY) PACKAGING OF ITEMS CUSTOMER PHARMACIST FIRST LEVEL DATA FLOW DIAGRAM 1 PLACE AN ORDER 2 SEARCHING OF ITEM PHARMACIST PACKAGING OF ITEMS CUSTOMER ITEM NAME ORDERED
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American Home Products Corporation 1. How much business risk does American Home Products face? How much financial risk would American Home Products face at each of the proposed levels of debt shown in case Exhibit 3? How much potential value‚ if any can American Home Products create for its shareholders at each of the proposed levels of debt? A combination of business risk and financial risk shows the risk of an organization’s future return on equity. Business risk is related to make a firm’s
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Product Information Product information should be more thorough because it will help us become more ethical consumers and take better care of our health. We do have the right to know whether a product has been made by unethical means before purchasing it‚ or if the product is harmful to our health. Our market has expanded to the point where we are presented to an enormous number of products and have built the tendency to buy things without knowing where they come from or how they were made
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Process Modeling: Context Diagrams and Data Flow Diagrams (DFDs) Introduction Figuring out the business processes for complex systems can be complicated. For example‚ if the goal is to streamline an existing supply chain process‚ your investigation will cross multiple business units‚ perhaps starting with an on-line order‚ a retail store pick-up‚ or a telephone order. How does the current process work to replace items in inventory storage and on retail shelves? Computer systems make these processes
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TOPIC 1 INTRODUCTION TO INFORMATION SYSTEM 1.0 THE BASIC CONCEPT OF DATA AND INFORMATION In an organization‚ ‘Information’ is one of the most valuable and important resources. With the right information‚ from the right source‚ at the right time and place‚ the organization can make the best decision to achieve their goals. Information can be defined in so many ways. The term ‘information’ however is often confused with the term ‘data’. In some cases the term ‘information’ and ‘data’ has been used
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