Chapter 4 The Enhanced E-R Model and Business Rules Chapter Objectives The purpose of this chapter is to present some important extensions to the E-R model (described in Chapter 3) that are useful in capturing additional business meaning. In particular we describe two types of extensions to the E-R model. The enhanced entity-relationship (EER) model includes constructs for supertype/subtype relationships. The inclusion of new notation for business rules allows the designer to capture
Premium Entity-relationship model Object-oriented programming Object
To Miss C.O. y R. by José Rizal (A Translation from the Spanish by Nick Joaquin) Why ask for those unintellectual verses that once‚ insane with grief‚ I sang aghast? Or are you maybe throwing in my face my rank ingratitude‚ my bitter past? Why resurrect unhappy memories now when the heart awaits from love a sign‚ or call the night when day begins to smile‚ not knowing if another day will shine? You wish to learn the cause of this dejection delirium of despair that anguish
Premium Psychology Avicenna Depression
. Frank R. Stockton is the author of this awesome story. Of love‚ jealousy‚ and anguish. The lover of the princess is life is danger. When her father finds out about it her lover get put in a fair death sentence. This is a story of love not hate. This semi-barbaric king had a daughter as blooming as his most fluoric and fancies. And with a soul as reverent and impervious as his own. This means that she is just like the king but she is kinder and love and kindness overpowers anger and jealousy
Premium Love Marriage William Shakespeare
Whale Watching in Australia Just Got Easier Every Australian spends hours of their life surfing on the golden beaches‚ located right on their doorstep‚ having a drink with the mates‚ only eating sausages cooked on the BBQ (unless of course they are eating vegemite by the spoonful)‚ and acting like the mad sports nuts they are. Somehow above all these assumptions about the people of ‘Down Under’ there is one belief people really can’t get out of their minds‚ that every Australian has the perfect
Premium Nutrition Obesity Health
Analyze J&R Electronics using competitive forces and value chain models. What is its business model and business strategy? How does it provide value? • J&R’s use of Loyalty’s Labs’ Blue Martini software is a classic example of Michael Porter’s approach to using the internet as an “enabling strategy” and as a “complement to and not a cannibal of traditional ways of competing”. Unique visitors are customers that go directly to the J&R site versus arriving through another site. Once there‚ J&R offers
Premium Strategic management Sales Marketing
“Doctor in the House” by R. Gordon The text under analysis is taken from the book “Doctor in the House” written by Richard Gordon. Richard Gordon was born in 1921. He has been an anaesthetist at St. Bartholomew’s Hospital in London‚ a ship’s surgeon and an assistant editor of the British Medical Journal. He left medical practice in 1952 and started writing his “Doctor” series. “Doctor in the House” is one of Gordon’s twelve “Doctor” books and is noted for witty description of a medical student’s
Premium Final examination School terminology Emotion
R v Brown [1994] 1 AC 212 is a case most law students could tell you the facts of even years after graduating‚ so remarkable are they. The House of Lords‚ by a 3–2 majority‚ decided that the consensual infliction of harm on another person for sexual gratification was not an act the law should permit. The judgment has received criticism in some academic circles because‚ it is thought‚ if the facts had been different and involved heterosexual sadomasochistic activity it would have been found lawful
Premium Law Sexual intercourse Common law
West Indian Reports/Volume 19 /R v Worrell - (1972) 19 WIR 180 (1972) 19 WIR 180 R v Worrell COURT OF APPEAL OF BARBADOS DOUGLAS CJ‚ WARD AND WILLIAMS JJ 29 MARCH 1972 Criminal Law - Standard of proof - Directions to jury - Jury told that before there can be a verdict of guilty‚ the prosecution must make the jury feel sure that the verdict is the right one - Imprecise. Criminal Law - Defence of automatism - Unsworn statement of accused - No foundation for defence. The
Premium Jury Law Appeal
CASE STUDY US MAGNESIUM SEEKS PROTECTION In Feb 2004‚ US Magnesium‚ the sole surviving US producer of magnesium‚ a metal that is primarily used in the manufacture of certain automobile parts and aluminum cans‚ filed a petition with the US International Trade Commission (ITC) contending that a surge in imports had caused material damage to the US industry’s employment‚ sales‚ market share‚ and profitability. According to US Magnesium‚ Russian and Chinese producers had been selling the metal at prices
Premium International trade World Trade Organization United States
The company I chose was US Airways Group mostly because they were listed as a least admired company for every attribute listed including Product Quality. They are in the airline industry and are headquartered in Tempe‚ AZ. US Airways supplies air travel both domestically and internationally to its customers. They have been in business since 1939 when they started out as All-American Airways providing air-mail delivery in Western Pennsylvania and the Ohio Valley. Over the years‚ through buy outs
Premium Airline US Airways Aircraft