and explain a Use-Case diagram for a Library Management System. Introduction: Capturing the dynamic behaviour of a system is one the key aspects to create a model. Dynamic behaviour means the behaviour of the system under operation. Use case diagrams are used in Unified Modeling Language‚ a standard modelling language for the modeling of real-world objects and systems. A use case diagram is to explicitly define the working of a system with in a system boundary. Each system is primarily divided into
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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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Class Diagram A class diagram is at the heart of UML. It represents the core purposes of UML because it separates the design elements from the coding of the system. UML was set up as a standardized model to describe an object-oriented programming approach. Since classes are the building block of objects‚ class diagrams are the building blocks of UML. The diagramming components in a class diagram can represent the classes that will actually be programmed‚ the main objects‚ or the interaction between
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FISHBONE DIAGRAM The cause-and-effect diagram was initially developed by Japanese quality expert Professor Kaoru Ishikawa. In fact‚ these diagrams are often called Ishikawa diagrams; they are also called fishbone charts for reasons that will become obvious when we look at an example. Cause-and-effect diagrams are usually constructed by a quality team. For example‚ the team might consist of service designers‚ production workers‚ inspectors‚ supervisors‚ quality engineers‚ managers‚ sales representatives
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DISSERTATION SYNOPSIS Modular Housing System in the Indian Context Guide: Mr. M.L.Bahri ‘ Akshay Malik A/1850 Contents ▪ Introduction i. Preface ii. Need Identification iii. Aim and Objective iv. Scope ▪ Case study – Analysis ▪ “Modular” Housing system ▪ Flexibility (High-rise Group housing) ▪ Value – addition ▪ Un(dis) – organised sector ▪ The inevitable – Growth
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Exercise 1 1. Draw an E-R diagram for each of the following situations (if you believe that you need to make additional assumptions‚ clearly state them for each situation): a. A hospital has a large number of registered physicians. Attributes of PHYSICIAN include Physician_ID (the identifier) and Specialty. Patients are admitted to the hospital by physicians. Attributes of PATIENT include Patient__ID (the identifier) and Patient_Name. Any patient who is admitted must have exactly one admitting
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The Use of Cooling Curves in the Determination of the Phase Diagram for a Lead-Tin System V.O.L.Tabell Department of Mining‚ Metallurgical and Materials Engineering University of the Philippines‚ Diliman vo_tabell@yahoo.com Abstract This paper discusses the use of the cooling curves in the determination of the phase diagram of a Lead-Tin system. The inflection points of these cooling curves were obtained by melting a series of mixtures of lead and tin at varying compositions. These critical
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Cost Benefit Analysis Developing and installing a new IT system is an investment and can help the business create profit. Carrying out a cost benefit analysis helps to give management an idea of the costs of the new system‚ its benefits and risks. Each phase of the development/implementation has a cost and when analysing the new system you should take into account the cost of: • Personnel • Equipment • Supplies • Overheads • Consultant’s Fees Some costs are a one time charge eg Development
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Scatter Diagram MGT350 October 1‚ 200 Tool and Techniques Paper: Scatter Diagram When faced with a problem‚ one can utilize various tools and techniques to try to solve the said problem. Depending on the way a person process his or her thoughts would greatly affect which tools or techniques might be the best for one to use. For example‚ if a person understands better by seeing the information‚ one might use a visual tool like a pie chart‚ bar graph or perhaps a scatter diagram; which
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Interaction Diagram:- means a situation or occurrence in which two or more objects act upon one another to produce a new effect in an understandable format. Interaction is a part of dynamic behavior of the system represented in UML by two diagrams known as Sequence diagram and Collaboration diagram. Meaning of Collaboration Diagram:- also called a communication diagram or interaction diagram‚ is an illustration of the relationships and interaction between entities or objects in the Unified Modelling
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