Free Data Flow Diagrams Tutorial DFD Tutorial Data Flow Diagrams - Introduction Data flow diagrams can be used to provide a clear representation of any business function. The technique starts with an overall picture of the business and continues by analyzing each of the functional areas of interest. This analysis can be carried out to precisely the level of detail required. The technique exploits a method called top-down expansion to conduct the analysis in a targeted way. [pic] The
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ACTIVITY DIAGRAMS IN UML Activity Diagrams WHAT IS AN ACTIVITY DIAGRAM? Activity diagrams consist of activities‚ states and transitions between activities and states. Activity diagrams combine ideas from event diagrams‚ Petri nets and state modeling techniques An activity diagram is a special case of state charts in which most or all states are activity states and most or all transitions are triggered by the completion of activities in the source state. What is an Activity Diagram? The
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Tutorial Week 7 - Class and Entity-Relationship Diagrams 1 Class Diagrams and Entity Relationship Diagrams (ERD) Class diagrams and ERDs both model the structure of a system. Class diagrams represent the dynamic aspects of a system: both the structural and behavioural features. ERDs‚ depicting only structural features provide a static view of the system. 2 Class Diagrams 2.1 Elements of a class diagram: 2.1.1 class A class is a general concept (represented as a square box). A class defines
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PROPERTY DIAGRAMS OF PURE SUBSTANCES SUBJECT : ENGINEERING THERMODYNAMICS CONTENTS: * Phase and pure substance * Properties of a substance * P-V diagram for a pure substance * P-T diagram for a pure substance * P-V-T surface * T-S diagram for a pure substance * h-s diagram for a pure substance Thermodynamic Properties * Characteristics by which physical properties of system may be described. e.g. pressure‚ volume‚ temperature‚ entropy‚ enthalpy etc
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Network Diagrams and schedule analysis NETWORK DIAGRAMS ARE SCHEMATIC DISPLAYS OF PROJECT SCHEDULE ACTIVITIES AND THE INTERDEPENDENCIES BETWEEN THESE ACTIVITIES. WHEN DEVELOPED PROPERLY‚ THIS GRAPHICAL VIEW OF A PROJECT’S ACTIVITIES CONVEYS CRITICAL SCHEDULE CHARACTERISTICS REQUIRED TO EFFECTIVELY ANALYZE AND ADJUST SCHEDULES – THUS RESULTING IN ACCURATE AND FEASIBLE SCHEDULES. THIS DOCUMENT ADDRESSES WHAT SHOULD BE CONSIDERED IN THE DEVELOPMENT OF A NETWORK DIAGRAM‚ HOW NETWORK DIAGRAMS ARE CREATED
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to the patients in XYZ Hospital: The patient arrives at the hospital and enquires at the reception The staff checks whether the patient is new or existing‚ i.e.‚ Patient in the system If the patient is New‚ then the patient needs to complete the paper work If the patient is existing then‚ checks whether Nurse is available If Nurse Not available then‚ send the patient to waiting Room If Nurse is available‚ then Nurse will check the patient’s Blood pressure‚ pulse‚ weight‚ Temperature. Now the
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once full cycle. (see fig 1.2) Fig 1.2 A phase shift represents the amount a wave has shifted horizontally from the original wave. Phase shifts are typically measured in degrees where a complete cycle is 360 degrees. In the diagram below‚ the second wave is shifted by the specified amount from the original wave: Fig 1.3 Because the horizontal axis denotes time‚ a phase shift represents a shift in time from the original wave. Phase and vertical shift refer to
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Maths Project Class 9 PROJECT WORK: Creative Mathematics Project Ideas General Guidelines: * Each student is required to make a handwritten project report according to the project allotted Please note down your project number according to your Roll Number. Roll Number | Project Number | 1-5 | 1 | 6-10 | 2 | 11-15 | 3 | 16-20 | 4 | 21-25 | 5 | 26-30 | 1 | 31-35 | 2 | 36-40 | 3 | 41-45 | 4 | 46-50 | 5 | * A project has a specific starting date and an end date. *
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Item 4B Item 4B Rachel Reiser Maths C Rachel Reiser Maths C Question 1 ab1+f’(x)2 dx y = acosh(xa) If: coshx=12ex+e-x Then: cosh(xa) = 12(exa+e-xa) y = acosh(xa) ∴ y=a(exa+e-xa)2 y=a(exa+e-xa)2 dydx=f’x=ddxa(exa+e-xa)2 dydx=f’x=ddx12aexa+e-xa f’x=12a1aexa+-1ae-xa f’x=exa-e-xa2 f’x2=exa-e-xa22 f’x2=(12exa-12e-xa)(12exa-12e-xa) f’x2=14e2xa-14e0-14e0+14e-2xa f’x2=14e2xa-12+14e-2xa f’x2=14e2xa-2+e-2xa Assuming the catenary is symmetrical‚ the entire length of
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onhand‚ price) Po_Items (jobid‚ poid‚ itemid‚ quantity) For each question‚ turn in the Oracle SQL query and the output. You should feel free to do these by hand (paper and pencil)‚ or you may actually run them. I have created the tables and granted everyone in the class access to them. I would urge you to FIRST write them on paper‚ and THEN run them – just to be sure you understand them. You will not have access to Oracle SQL during the final exam. These take time‚ so please start early.
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