Weekly Outline for Systems Analysis and Design (2013 by Dr. Liping Liu Week 2: Lecture 1: Three Different Class and Objects Real world objects ( Conceptual objects ( Programming Objects Real World Classes ( Conceptual classes ( Programming classes [pic] These are real world objects‚ and their groups are real world classes. Model objects are the representation of real world objects using symbols‚ and the groups of the same kind is a conceptual class. In UML‚ here is an example of a conceptual
Premium Object-oriented programming Subroutine Java
According to the article “But I’m Not Tired!” by Alice Park‚ she states that last year the National Sleep Foundation reported that nearly 60% of 7-12 year-olds said they felt tired during the day‚ and 15% nodded off at school. Kid’s now are not getting as much sleep as they should be getting a good education. For kids to do well in school the article states that for the most school-age children‚ 10 ½ hours of sleep is ideal. A lot of parents and kids think that the right amount of time to sleep
Premium Sleep High school Sleep deprivation
rate of reaction in the potato or liver will increase when the surface area is increased. Materials- • 100 mL graduated cylinder • Ice and water 250mL beaker (2) • Stirring Rod • 4 Test Tubes • Test Tube Clamp • Hot Plate • Potatoes • Timer • Test Tube Rack • Mortar and Pestle • Test Tube Brush • Tweezers • Ruler • Balance • Chicken Liver • Knife • Strainer Procedure- Testing Temperature 1. Gather all materials. 2. With a knife‚ cut a piece of chicken liver that has
Premium Chemical reaction Reaction rate Liver
interrupted when someone is standing at the gate or passing through it. The transmitter circuit (see Fig. 1) is built around timer NE555 (IC1)‚ which is wired as an astable multivibrator producing a frequency of about 38 kHz. The infrared (IR) beam is transmitted through IR LED1. The receiver circuit is shown in Fig. 2. It comprises IR sensor TSOP1738 (IR RX1)‚ npn transistor BC548 (T1)‚ timer NE555 (IC2) and some resistors and capacitors. IC2 is wired as a monostable multivibrator with a time period of around
Premium Electronics Loudspeaker Infrared
encourage him to retire (he is old enough). You also know that this gentleman is well liked within the company. Pose several hypotheses that might account for the dropped or misrouted calls. How would you test these hypotheses? Analysis #1. "Short Timers Disease" This is the disease also known as the "Couldn ’t care less syndrome. Perhaps the man knows that he wants to retire or is getting ready to announce it. He could be thinking on terms of time left and doesn ’t really care what happens‚ so
Premium Null hypothesis Scientific method Psychology
one fork‚ one spatula and a cutting board. Be sure to have all your standard cooking items available; this includes an apron‚ meat thermometer‚ and oven mitts. For keeping time‚ I like to use my microwave oven‚ but if your microwave does not have a timer function‚ a wall clock or your cell phone will suffice. First‚ preheat the oven to 400 °F. While the oven is preheating‚ cut the butter into consistent slices and line the bottom of the 9x13 baking dish‚ keeping the slices ½ inches apart. Sprinkle
Premium Cooking
| Logo Chart Product Product Name : Adidas Response Sequence Product Code Name : ADP3014 Types : watches‚ sportswear Case Material : Polyurethane Strap Material : Polyurethane Features : two alarms‚ chronograph‚ timer/interval timer‚ 50-lap memory and shadow race mode Product Specifications Brand Name | adidas | Model number | ADIDAS-ADP3014 | Part Number | ADIDAS-ADP3014 | Dial window material
Premium Adidas Adolf Dassler
Here’s How: 1. Ask for the essay’s required length. When your teacher tells you it’s an essay test‚ ask these two questions: 1. Will there be one essay topic or more than one? 2. What is the approximate length of the response or responses (if more than one) Some teachers give essay tests and require one long essay in response to one prompt. Others give essay tests and give two or three (or more) prompts. You’ll need to know more facts and details to support your answer/s if
Free Essay Writing Albert Einstein
Investigation 4.2: Factors Affecting Viscosity Question How does changing the temperature (°C) of glycerin affect the viscosity s -1 of glycerin (l)‚ when tested by dropping a marble from a constant height into the glycerin (l) and timed with a stopwatch until the marble hits the bottom? Design Independent Variable: The independent variable of this experiment is the temperature (°C) of the glycerin (l). Dependent Variable: The dependent variable of this experiment is the viscosity s -1 of the glycerin
Premium Glycerol Viscosity Liquid
Delayed Gratification Angela Chang‚ Helen Lee‚ Ching Yang Background Research Summary Why should people be able to postpone their desire? Desire is a sense of hoping for something. Scientists have discovered that if people could control their inner desire‚ they would be more likely to have self-discipline‚ higher SAT scores and are more successful. Delayed gratification is a person’s ability to control his/her desire for something for a period of time. The Marshmallow Experiment conducted
Premium English-language films Management Crime