main components of ER models are entities (things) and the relationships that can exist among them. Entity-relationship modeling was developed by Peter Chen and published in a 1976 paper.[1] However‚ variants of the idea existed previously‚[2] and have been devised subsequently such as supertype and subtype data entities[3] and commonality relationships.In software engineering‚ an entity–relationship model (ER model) is a data model for describing the data or information aspects of a business domain
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Question 1 Characteristics of bad systems To be useful‚ the information system must possess the characteristic of reliability‚ relevance‚ understandability‚ complete‚ accurate and comparability. However‚ in order for Encik Khalid to detect problems occur with the current or new system are based on the characteristics of bad system which are unreliable‚ irrelevance‚ not understandable‚ incomplete‚ inaccurate‚ and incomparable. The first characteristic is unreliable. Encik Khalid may detect the
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Learning Team Reflection Week Three ECO/561 Learning Team Reflection Week Three Learning Team B discussed and summarized the objectives for week three. The objectives are as follows: determine pricing strategy to meet organizational goals‚ determine ways to create nonprice barriers to entry based on market structure‚ determine ways to increase product differentiation based on market structure and determine ways to reduce costs for an organization. Determine pricing strategy to meet
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Drugs and the Different Between Them Chiet Garvin Kaplan University CJ411: Drugs and Alcohol in the Criminal Justice System Pages 1 The three drugs that I decided to explore a little more are alcohol‚ crack‚ and ecstasy. In this essay I will be discussing the difference between each drug. I will also be talking about how each drug effect the person
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of Patient-Centered Care. Annals of Family Medicine‚ 9 (2)100-103. doi:10.1370/afm.1239 Bertakis‚ K.‚ Azari‚ R. (2010). Patient Centered- Care is Associated with Decreased health care utilization. Journal of the American Board of Family Medicine‚ 24 (3) 22-239. doi: 10.3122/jabfm.2011.03.100170
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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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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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computers should be able to view and update the data from any of the three offices. In other words‚ the data storage server within each LAN should be accessible to all computers‚ no matter where they are located. Draw a network diagram that will support this configuration. 3. A small start-up company has a Web-based customer sales system that is written by using PHP and JavaScript. The company is deciding whether to host the system on its own servers‚ contract with a hosting company for a virtual
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her mother that she also lied. This response may involve which fallacy? Student Answer: CORRECT Ad hominem (tu quoque) Ad verecundiam (ex libris) INCORRECT Ad misericordiam (ex ante) Ad baculum (antebellum) 3. Question : “That coin‚ when flipped‚ will either come up heads or tails" may commit which fallacy? CORRECT No fallacy committed INCORRECT False dichotomy Begging the question 4. Question : "If that wasn’t illegal
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Fishbone Diagram Part 1 Individual Project Fishbone diagram allows Hotel Escargo to turn the problem upside down working through the roots so that the issue is fixed. It is also easier to fix the smaller problems that lead to the main problem. Looking at the check-in delays‚ there are a lot of small issues that have led to this occurrence. The first issue is computer malfunctions. Often times‚ computers tend to freeze due to glitches in the used software
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