Level (0) Data Flow Diagram [pic] Level (1) Data Flow Diagram of General Enquiry [pic] Level 1DFD of Passenger Enquiry Section [pic] Level 2 DFD of Booking [pic] Level 2 DFD Cancellation ----------------------- Passenger 1.0 General Enquiry 2.0 Passenger Enquiry 3.0 Booking Counter 4.0 Cancellation Information Booking Inquiry
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Objective: The student is able to use object diagrams to communicate ideas in familiar domains. Initial script for introducing object diagrams: Here we have an object diagram that represents a situation in some particular school. The actual school is much larger; we are only representing a subset of all the situations‚ and there are many more types of links and many more types of objects that might be used. An object diagram can be paraphrased in a natural language. Here is a description that
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* As the polar ice caps melt‚ the sea levels around the world will rise. * When the sea levels did rise‚ many islands would be lost and‚ because most of the islands are poor‚ they may not be able to be evacuated in time. It is predicted that places such as London‚ Los Angeles‚ New York‚ Tokyo and Shanghai‚ were millions of the world’s population live‚ will find themselves submerged in icy water. * In 100 years‚ the sea level has been believed to rise over 6 inches. Scientists have predicted
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4.3 DATA FLOW DIAGRAM A data flow diagram is a graphical technique that depicts information flow and transforms that are applied as data move from input to output. The DFD is also known as Data Flow Graph or Bubble Chart. The DFD is used to represent increasing information flow and functional details. Also DFD can be stated as the starting point of the design phase that functionally decomposes the requirements specifications down to the lowest level of detail. A Level 0 also called a fundamental
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Can you imagine being a polar bear stuck in the middle of the ocean on a piece of ice‚ having nowhere to go and knowing that you have no way out? Luckily‚ there is hope for these polar bears and many more species all over the world that can prevent this situation from even occurring. That is the World Wildlife Fund. WWF helps all species of animals and their environments by putting up numerous safe havens that are controlled and supported with every dollar that is donated. All they need is a few
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Every February for the last four years I have done the Polar Plunge and most people think that I am nuts for doing it. However‚ if one is not fully prepared for a Polar Plunge‚ it can really ruin the whole experience. It can be ruined by not having the proper items packed‚ also by not having a costume‚ and not mentally preparing for what you are about to do. By doing these few things I can be very well prepared for the jump. Doing a Polar Plunge is no small feat and do not get me wrong because this
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Use case diagram A use case diagram at its simplest is a representation of a user’s interaction with the system that shows the relationship between the user and the different use cases in which the user is involved. A use case diagram can identify the different types of users of a system. The different use cases and will often be accompanied by other types of diagrams as well. Figure 5.2: Use case Diagram 5.3 Use Case Analysis 5.3.1 Activity Diagram The following activity diagram represents
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ENTERPRISE RESOURCE PLANNING (ERP) AND SUPPLY CHAIN MANAGEMENT (SCM) -APPLICATION IN RETAIL INDUSTRY SUPPLY CHAIN (MARKS AND SPENCER) ABSTRACT: This report examines Supply Chain Management (SCM) and how it enhances the supply chains in the Retail Industry. Also the report examines how the supply chain is a link of suppliers and buyers and customers in turn becoming supplier. The report examines the problems associated with the supply chain a major one which is bullwhip effect. This study
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The Polar Bear (Ursus maritimus) is a bear native largely within the Arctic Circle encircling the Arctic Ocean‚ its surrounding seas and land masses. Although it is closely related to the Brown Bear‚ it has evolved to occupy a narrower ecological forte‚ with many body characteristics adapted for cold temperatures‚ for moving across snow‚ ice‚ and open water‚ and for hunting the seals which make up most of its diet. Though there are many theories surrounding evolution‚ the two stand outstanding hypotheses
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TYPES OF DATA FLOW DIAGRAM: LOGICAL DFD PHYSICAL DFD Data Flow Diagrams (DFDs) are categorized as either logical or physical. A logical DFD focuses on the business and how the business operates. It describes the business events that take place and the data required and produced by each event. On the other hand‚ a physical DFD shows how the system will be implemented. Design Feature Logical Physical What the model depicts How the business operates How the system will be implemented
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