Both Class Diagrams and Use Case Diagrams are used in the requirements determination of object oriented development. Object oriented development is an approach to system development that uses the object as the basic unit of systems analysis and design. Use case shows the relationships among actors and use cases within a system. Class diagrams are widely used to describe the types of objects in a system and their relationships The purpose of Use case diagram is that it shows the interaction
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TERNARY PHASE DIAGRAMS An Introduction Guna Selvaduray San Jose State University Credit for Phase Diagram Drawings: Richard Brindos Credit for scanning the phase diagrams: Brenden Croom G. Selvaduray - SJSU - Oct 2004 Utility of Ternary Phase Diagrams Glass compositions Refractories Aluminum alloys Stainless steels Solder metallurgy Several other applications G. Selvaduray - SJSU - Oct 2004 References on Ternary Phase Diagrams A. Prince‚ Alloy Phase Equilibria‚ Elsevier Publishing
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The Iron-Carbon Diagram There are two iron-carbon equilibrium diagrams: - stable iron-graphite Fe-Gr - metastable iron-cementite Fe-Fe3C The stable condition usually takes a very long time to develop. The metastable diagram is of more interest. Fe3C iron carbide called cementite because it is hard. Following phases exist on Fe-Fe3C diagram: - liquid solution of iron and carbon (L) - ferrite ( ) – an interstitial solid solution of carbon in Fe (bcc). At room temperature ferrite is ductile but
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as Phase Diagrams By _________________ _________________ Material Science Lab #11 Report Introduction The purpose of this lab is to obtain the cooling curves for tin‚ lead and various alloys of these two metals. A phase diagram will be generated from these cooling curves. When a material is heated by adding energy at a constant rate‚ the temperature of the material will increase linearly with time‚ provided a phase transformation does not occur. As temperature of the sample becomes
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Figure 1.0: Entity Relationship Diagram of Generic Academic Performance Monitoring System Figure 2.0: Context Diagram of Generic Academic Performance Monitoring System The figure 2.0 represents the two (2) users of the Generic Academic Performance Monitoring System namely the Administrator and the Professor. The Administrator entity shows the capability to access the system; manage account by modifying account’s profile; managing member’s account such as creating new user profile and updating
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of the Problem According to research‚ unemployment is one of the main problems in Jamaica.This study intends to discover the effects of unemployment on family lives in Brown’sTown‚ and the factors contributing to the increase in the number of unemployed persons.The study also seeks to determine the causes of unemployment in the society andthe factors which are likely to get you into the unemployment queue. According toobservations and some books‚ unemployment creates a depressive impact-familyinstability
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HIGH UNEMPLOYMENT RATE: WHO’S TO BE BLAMED? A case study Presented to The Faculty of the College of Management and Business Technology Nueva Ecija University of Science and Technology Sumacab Campus‚ Cabanatuan City In Partial Fulfillment of the Requirement for the Subject Basic Economics with Agrarian Reform and Taxation Economics 1 By: Glenda L. Estipular Joanne Abigail C. Ramones Jennavy N. Dela Cruz Irma Joy P. Castro Mary Grace A. Arzanan Jonnalyn L. Alberto Introduction
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individuals actively seeking jobs remain unhired. Unemployment is expressed as a percentage of the total available work force. The level of unemployment varies with economic conditions and other circumstances. Unemployment describes the state of a worker who is able and willing to take work but cannot find it. As indicated by the unemployment rate and other yardsticks‚ unemployment is an important measure of the economy’s strength. A high unemployment rate generally indicates an economy in recession
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The causes and consequences of unemployment Unemployment causes There are three main causes of unemployment‚ the first is cyclical unemployment which is unemployment arising from a lack of aggregate demand. Demand for most products are likely to be low and unemployment may be high. Since not a lot of people are buying a product‚ firms do not need as much labour and will reduce it leading to unemployment. This in turn will lower disposable income and decrease demand for certain products‚ hence
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consequences of unemployment * Improve the current account position Less spending on imports Some products for the domestic market will be sold to the export market instead Good because it may increase AD * Hysterisis -The hysteresis effect describes a possible consequence of a country experiencing persistently high rates of long term unemployment. Hysteresis means “to be behind” and it relates to the economic costs of unemployment because of the damage that unemployment does to the skills
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