. You have been asked to build a course registration system for your university
Develop an entity-relationship diagram that describes data objects, relationships and attributes.
Draw a context-level model (level 0 DFD/CFD) for your system. Write a context level processing narrative for the system.
Draw a level 1 DFD/CFD for your system.
2. What is the difference between cardinality and modality? (Pressman 6.4.3 7th Ed or Pressman 8.3.4 6th Ed)
i. An automatic washing machine which has different programs for at least two different types of clothes. The washing cycle should be suspended whenever the lid of the washing tub is raised and resumed when it is lowered. (Assume the washing machine is a simple older type with limited electronic control)
ii. A coffee vending machine that can dispense coffee with or without sugar and milk. The user deposits a coin and makes his or her selection by pressing a button on the machine. This causes a cup with instant coffee plus other ingredients to be output. The user then places the cup under a tap, presses another button and hot water is dispensed.
. You have been asked to build a course registration system for your university Develop an...
Imagine you are working in a company that designs and manufactures industrial washing machines.You are asked to make a 1-program machine with 2 buttons. Design requirements are as follows: ✓ If the user presses only X then Program1 will run. (PS: Please note that the buttons are toggle button) ✓ The wash cycle for program should be 25 minutes. ✓ After completing a wash, wait 10 minutes before starting a new wash. Even if the user logs in, the new...
You have been asked to develop a system to mix and bottle orange juice from concentrate. a. Low level detectors in the water (I1) and concentrate (I2) tanks prevent operating the water (Q1) and concentrate (Q2) pumps. b. The orange juice tank has a high level detector (I4) which stops the pumps in the water and concentrate tanks. c. The conveyor belt motor (Q4) is initiated by a start (I6) and stop (I7) button. d. When a bottle is detected...
write a software or business system that has one topic in each categorie 1. Software Development Mode Waterfall Model Evolutionary Model Boehm's Spiral Model 2. Team Structure Democratic Team Chief Programmer Team Hierarchical Team 3. Project Evaluation in terms of: Individual Ability . Team Communication Product Complexity . Appropriate Notation . Level of Technology Level of Reliability Available Time . Required Skills 4. Cost Estimation using COCOMO Use Effort Multipliers Perform Sensitivity Analysis Calculate FSP(Fulltime Software Personnel) - . ....
You have just been hired by FAB Corporation, the manufacturer of a revolutionary new garage door opening device. The president has asked that you review the company's costing system and "do what you can to help us get better control of our manufacturing overhead costs.:"You find that the company has never used a flexible budget, and you suggest that preparing such a budget would be an excellent first step in overhead planning and control. After much effort and analysis, you...
23. On your new job you have been asked to design a monitoring system for a water treatment process. You have chosen a dissolved-oxygen (DO) detector that operates at a frequency of 30 Hz. You have found that there is a significant source of noise at 5.0 kHz, with roughly the same amplitude as the measurement signal. You decide to minimize (90% reduction) the noise at this wavelength by building an RC filter. Diagram the signals in terms of amplitude...
You have just been hired by FAB Corporation, the manufacturer of a revolutionary new garage door opening device. The president has asked that you review the company's costing system and "do what you can to help us get better control of our manufacturing overhead costs." You find that the company has never used a flexible budget, and you suggest that preparing such a budget would be an excellent first step in overhead planning and control. After much effort and analysis,...
the case: XYZ Pty Ltd is an established company (the 'Company') that has been selling hardware tools and paints for the last 30 years using traditional "brick and mortar" business model, based on tradesmen coming to the store and selecting the goods they want to buy. They are currently seeking to expand their business to include on-line catalogue with ability to be browsed, select items to be put in the shopping bag and to make an on-line payment with goods...
could you please help me with this problem, also I need a little text so I can understand how you solved the problem? import java.io.File; import java.util.Scanner; /** * This program lists the files in a directory specified by * the user. The user is asked to type in a directory name. * If the name entered by the user is not a directory, a * message is printed and the program ends. */ public class DirectoryList { public static...