working on their degree. * Each graduate student has another‚ more senior graduate student (known as a student advisor) who advises him or her on what courses to take. * Design and draw an ER diagram that captures the information about the university. Use only the basic ER model here; that is‚ entities‚ relationships‚ and attributes. Be sure to indicate any key and participation constraints. Exercise 2. Notown Records has decided to store information about musicians who perform
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Entity Relationship Diagram - ERD Database – is a large data repository that stores a shared collection of logically data. A database can be modeled as: A collection of entities and relationship among entities. What is Entity Relationship Diagram? An entity-relationship (ER) diagram is a specialized graphic diagram that illustrates the relationships between entities in a database‚ simply it illustrates the logical structure of databases. ER diagrams often use symbols to represent different types
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in mathematics. Developed at the end of the 19th century‚ set theory is now a ubiquitous part of mathematics‚ and can be used as a foundation from which nearly all of mathematics can be derived. In mathematics education‚ elementary topics such as Venn diagrams are taught at a young age‚ while more advanced concepts are taught as part of a university degree. A set is a well defined collection of objects. Georg Cantor‚ the founder of set theory. A set is a gathering together into a whole of definite‚ distinct
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BAR DIAGRAMS Bar diagrams are one of easiest and the most commonly used devices of presenting most of the business and economic data. These are satisfactory for categorical data or series. They consist a group of equidistant rectangles‚ one of each group or category of the data in which the values or the magnitudes are represented by the length or height of the rectangles‚ the width of the rectangles being arbitrary and immaterial. These diagrams are called one-dimensional because in such diagrams
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You should spend about 20 minutes on this task. The following diagram shows how greenhouse gases trap energy from the Sun. Write a report for a university lecturer describing the information shown below. Write at least 150 words. Complete the answer by filling the gaps with a word or phrase from the box below. lead to release result in subsequently fell reach less decades amounts as a result of Energy from the Sun .................... the Earth as heat. Some of this heat
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Aloe Vera’s Profile Lavanessa Young American Public University Whitney Elmore 06/17/14 Introduction Aloe is often described as a succulent stemless or very short-stemmed plant with a slimy and soothing sap. Binomially‚ this plant is known as Aloe vera‚ but it is a species with a good number of synonyms‚ including Aloe vulgaris‚ Aloe indica‚ Aloe perfoliata ‚ and Aloe barbadensis. It’s important to point out the fact that Carl Linnaeus was the first scientist to describe this species. Aloe vera
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Currently‚ the finance team has to collect and process vast information coming from internal and external sources. This information has to be manually entered by the team into excel sheets to generate reports. It generates separate reports for medical and dental claims. It further details on Inpatient‚ Outpatient‚ Prescription drug and Major medical claims separately. Since the filing and data entry procedure is manual‚ it can cause errors in the generated reports. The finance team has to collect data from
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Activity Diagram Administrator Inventory System Use Case Descriptions Inventory Use case: Search Item Actor: Sales Clerk Description: The system will search the item. Use case: Look Up remaining stocks. Actor: Sales Clerk Description: The will Look Up if they are enough stocks for the item. Use case: Look Up Item Price Actor: Sales Clerk Description: The system will look up the item price. Use case: Produce item details Actor: Sales
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Behavior Diagrams Definition: Behavioral models describe the internal dynamic aspects of an information system that supports the business processes in an organization. During analysis‚ behavioral models describe what the internal logic of the processes is without specifying how the processes are to be implemented. Later‚ in the design and implementation phases‚ the detailed design of the operations contained in the object is fully specified. Use case diagrams are behavior diagrams used to describe
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large clusters and having a very short life and are said to pervade each and every part of universe‚ even in tissues of plants and flesh of animals.[21] However‚ the earliest known idea to indicate the possibility of diseases spreading by yet unseen organisms was that of the Roman scholar Marcus Terentius Varro in a 1st-century BC book titled On Agriculture in which he warns against locating a homestead near swamps:… and because there are bred certain minute creatures that cannot be seen by the eyes‚
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