5.4 The Aspectual-Architecture Design Method Scenarios Considered: Bus Ticket Booking Sr. No. Scenario Description 1 Purchasing Customer purchase ticket 2 Make itinerary Customer prepares travel plan 3 Register and authenticate user The system register and validate the user. 4 Make purchase Customer make purchase through payment. 5 Validate purchase System validate the payment 6 Reserve a bus seat System reserve a bus seat 7 Print ticket User print travel ticket Table 6.1:
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1. What is an Entity Relationship Diagram? An entity relationship diagram is a graphical representation of an organisation’s data storage requirements. Entity relationship diagrams are abstractions of the real world which simplify the problem to be solved while retaining its essential features. Entity relationship diagrams are used to: identify the data that must be captured‚ stored and retrieved in order to support the business activities performed by an organisation; and identify the data required
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in my third year of university‚ I have a chance to study Service Design Innovation course. Many people including me asked me different kinds of the same question: “What is this course and What have been your experience from this course?”. It is quite hard for me to answer these questions at first. But now‚ I can confidently say that there are many happy moments and hard time so. But Each person has different experiences in learning this subject. For example‚ some might get more joyful or boring
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Entity-Relationship (E/R) Model Dr P Sreenivasa Kumar Professor CS&E Dept I I T Madras Entity-Relationship (E/R) Model Widely used conceptual level data model • proposed by Peter P Chen in 1970s Data model to describe the database system at the requirements collection stage • high level description. • easy to understand for the enterprise managers. • rigorous enough to be used for system building. Concepts available in the model • entities and attributes of entities. • relationships between
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CONTENTS 6 APPENDIX............................................................................................................ GLOSSARY WRD - Weibill’s Reliability Distribution RBD - Reliability Block Diagram MSG - Maintenance Steering Group RCM - Reliability Centred Maintenance EDP - Engine Driven Pump EMDP - Electrical Motor Driven Pump FTA - Fault Tree Analysis ABSTRACT The reliability analysis of Boeing 737NG’s hydraulically actuated
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play and have fun. Either way‚ visiting or going to computer shops have both good and bad effect on their school performance. . This research study is being proposed to evaluate the relationship between the location of the computer shops and the school performance of the students of The University of San Carlos Talamban Campus. The evaluation for this study will be based on the factors that influenced the students to choose the location of the computer shops that they visit such as distance from the
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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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Food Web Diagram Snake (D) Hawk (D) Coyote (D) Insects (C) Scorpion (C) Lizard (C) Quail (C) Mouse (C) Cactus (P) Grass (P) When you are explaining an ecosystem you have producers‚ consumers‚ and decomposers. Producers are the plants and the tress in the ecosystem that provide the energy to the ecosystem. As for the desert the producers are cactus and grass. The consumers of the ecosystem are in three different kinds‚ they are herbivores‚ carnivores‚ and omnivores. Herbivores are the consumers
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Case Study Method Evaluation Unfortunately‚ case studies tend to be highly subjective as they collect detailed qualitative data and it is difficult to generalize results to a large population. This therefore makes them subjective as they are harder to analyse as you need to look for general themes and interpretation within the information gathered despite them providing rich‚ in-depth data which give more detailed information than obtained through methods such as experiments. Case studies may also
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6 Pg 305 2. What is a data flow diagram? Why do systems analysts use data flow diagrams? Answers: A picture of the movement of data between external entities and the processes and data stores within a system. Systems analysts use DFDs to help in the analysis phase by accomplishing the following three things: 1. Requirements Determination 2. Requirements Structuring 3. Alternative Generation and Selection 3. Explain the rules for drawing good data flow diagrams. Answers: Process: A. No process
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