Entity Relationship Diagram The bellow diagram is what is refered to as an "Entity Relationship Diagram". Its purpose is to show the relationship between different data in the hotel management program ‚ and the actions that are performed on it. And how data from different objects relate to each other. Legend The Data Entities represent data that will need to be stored on the system‚ in general terms. The Relationships represent actions that will occur to the Data Entities‚ or Weak Entities.
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Go Along With Motto Good evening‚ ladies and gentlemen‚ A quarter of my college life has almost passed. Looking backwards‚ we need to think two questions carefully. No.1‚ what’s your initial intention to go to the university? For a certificate or the acquisition of knowledge? No.2‚ have you ever cheated in the examination? These are the most common problems‚ but they will effect our own development‚ or even the whole life. Therefore‚ it’s really necessary for us to practice the motto of
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INTRODUCTION The price of a commodity such as wheat increases when there is an increase in demand and decrease in supply. This particular case is currently being experienced in China and South Africa. Preceding the price change‚ changes in demand and supply has to occur. There are factors which cause this change in demand and supply. FACTORS WHICH CAUSE CHANGES IN DEMAND AND SUPPLY China recently experienced a drought causing the low production of wheat. Low production of wheat resulted in a low
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Turtle Diagram Inputs Supplier . Materials/Equipment Measure(s) Process Support Process(es) Outputs Customer Competence/Skills/Training 1 Turtle Diagram Process Steps that make up the process Explanation of how to do the process Could include Procedures and Work Instructions Or parts of Procedures and Work Instructions 2 Turtle Diagram Process Questions Does the process meet the requirements of the standard? Compare what is written to the standard How do you do the process? Have them
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DFD Yourdon Recently reviewed In the late 1970s data-flow diagrams (DFDs) were introduced and popularized for structured analysis and design (Gane and Sarson 1979). DFDs show the flow of data from external entities into the system‚ showed how the data moved from one process to another‚ as well as its logical storage. Figure 1 presents an example of a DFD using the Gane and Sarson notation. There are only four symbols: Squares representing external entities‚ which are sources or destinations
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5.4 Activity Diagram: In this project‚ the activity diagram explains about it start from user want to register‚ login and successful login and user order submission and search techniques through element level search and set level search and get results. And another activity login to accept user request to create response to user and submitting response to logout to end point. Fig7: Activity Diagram 4.5.5 Object Diagram: Fig8: Object Diagram In this project‚ the object diagram mainly consists
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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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The Hertzsprung-Russell Diagram or‚ the H-R Diagram for short‚ is a graph which plots stars according to their temperature and absolute magnitude. This graph reveals a pattern‚ which in fact is quite interesting. The H-R Diagram is named for the two astronomers‚ Ejnar Hertzsprung and Henry Russell‚ who discovered this pattern of stars. These two astronomers independently discovered that comparing magnitudes and spectral class (color) of stars yielded a lot of information about them. <br><br>One key
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None of the above. Answer: C 4) Suppose the demand for Digital Video Recorders (DVRs) is given by Q=250 - .25p + 4pc‚ where Q is the quantity of DVRs demanded (in 1000s)‚ p is the price of a DVR‚ and pc is the price of cable television. How much does demand for DVRs change if the p rises by $40? A) drops by 10‚000 DVRs B) increases by 16‚000 DVRs C) drops by 2‚500 DVRs D) increases by 4‚000 DVRs Answer: A 5) Consider the demand function Qd = 150 - 2P. The effects of other determinants
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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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