The Entity Relationship Diagram (ERD) depicts a conceptual data model that incorporates some of the important scientific information about the real world. It adopts a natural view that the real world consists of entities and relations (Chen‚ 1976). One objective of the ERD is to create a simple‚ easy to understand and conveniently presented data model consisting of entities‚ attributes‚ relationships and cardinalities. The model serves as tool for database design‚ where the model can facilitate communication
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Entity-Relationship Diagrams (ERD) Data models are tools used in analysis to describe the data requirements and assumptions in the system from a top-down perspective. They also set the stage for the design of databases later on in the SDLC. There are three basic elements in ER models: Entities are the "things" about which we seek information. Attributes are the data we collect about the entities. Relationships provide the structure needed to draw information from multiple entities. Generally
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Secondary Research Further‚ Stewart and Kamins (1993) also suggest that secondary sources provides an opportunity to learn what is already known‚ and what remains to be learned‚ about a particular topic. In addition secondary research includes government reports‚ industry studies‚ archived data sets‚ and syndicated information services as well as the traditional books and journals. Secondary research was conducted using books and journal articles and online sources (Athens). Books will be
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Case Study for Business Administration MPEN-BA-14 2014-45 Case 2: Kongstrup Machine Factory (page 174-180 of book “Organizational Theory and Design” by R.L. Daft‚ 2nd EMEA ed.) Weight: 30% of Assessment part (TOETS 2 30%) of Business Administration MPEN-BA- 14 Learning goal: • Describe the different strategic approaches in decision making process. • Apply the various concepts involved in international business. • Comment on the design of an organization engaged in international business
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Food Web Diagram Snake (D) Hawk (D) Coyote (D) Insects (C) Scorpion (C) Lizard (C) Quail (C) Mouse (C) Cactus (P) Grass (P) When you are explaining an ecosystem you have producers‚ consumers‚ and decomposers. Producers are the plants and the tress in the ecosystem that provide the energy to the ecosystem. As for the desert the producers are cactus and grass. The consumers of the ecosystem are in three different kinds‚ they are herbivores‚ carnivores‚ and omnivores. Herbivores are the consumers
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6 Pg 305 2. What is a data flow diagram? Why do systems analysts use data flow diagrams? Answers: A picture of the movement of data between external entities and the processes and data stores within a system. Systems analysts use DFDs to help in the analysis phase by accomplishing the following three things: 1. Requirements Determination 2. Requirements Structuring 3. Alternative Generation and Selection 3. Explain the rules for drawing good data flow diagrams. Answers: Process: A. No process
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Topology Diagram Topology Name Logical Characteristics Physical Characteristics Star Data passes through the hub to reach other devices on the network. Several devices having its own cable that connects to a central hub‚ or sometimes a switch‚ or even a Multi-station Access Unit (MAU). Data passes through the hub to reach other devices on the network. Ring Information is passed from one computer to another in either clock-wise direction or counter clock-wise direction and
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Component Diagram Notations The component diagram’s main purpose is to show the structural relationships between the components of a system. In addition‚ component diagrams are useful communication tools for various groups. In creating a component diagram‚ there are different notations that can be used to show the different relationship of each component within the system. The component diagram notation set now makes it one of the easiest UML diagrams to draw: * COMPONENT A component can
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CALIFORNIA PIZZA KITCHEN The case we studied this time is CPK‚ which is a restaurant with creative menu‚ high quality of foods‚ nice dinning environment‚ good dinning atmosphere‚ convenient traffic location and etc. The case discussion this time was more focused on the numerical data instead of strategy analysis. Although it’s not so easy for me to catch up with all information that the present group show‚ I think it’s really interesting. The main problem we need to discuss is how to raise the declining
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them that Shakey’s is not just all about food but about fun family and pizza. With its vision to be the leading and preferred pizza restaurant‚ it consistently serves the best tasting‚ high quality food through fast‚ efficient and friendly service in a clean‚ fun and wholesome environment. Shakey’s Pizza was the first important pizza chain restaurant in the United States and in many ways pioneered the concept of the chain pizza parlor. It is noted for its unique features: The chains are decorated
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