USE-CASE DIAGRAM EXERCISE 1. Draw a use case diagram for an ATM machine with the following functionality. A customer’s interaction with the system involves logging in‚ making withdrawal requests‚ deposit requests‚ and balance inquiry requests. If the customer logs in‚ there is a possibility (although rare) that the system will confiscate the card (for example‚ if the login is incorrect or if the bank determines that the customer’s balance is significantly under zero). Card confiscation involves
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Online Auction System Use Case and Misuse Case Diagrams Mounika Challagundla‚ Graduate Student Dr. Natarajan Meghanathan‚ Associate Professor Department of Computer Science Jackson State University‚ Jackson‚ MS 39217‚ USA use case description • Registration: Anyone who want to participate in auction first they have to register to the system. • Login: The user will provide login details in order to access anything. • Post items: Once registered as a seller‚ the seller can start posting his
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Use Case Senario Based Diagram A Use Case Model describes the proposed functionality of a new system. A Use Case represents a discrete unit of interaction between a user (human or machine) and the system. This interaction is a single unit of meaningful work‚ such as Create Account or View Account Details. Each Use Case describes the functionality to be built in the proposed system‚ which can include another Use Case’s functionality or extend another Use Case with its own behavior. A Use Case
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7. How do local area networks (LANs) differ from metropolitan area network (MAN)? A local area network (LAN) is a group of microcomputers located in the same general area. It covers a clearly defined small area‚ such as an office‚ home network ‚one floor or work area‚ a single building‚ or a group of buildings. While a metropolitan area network (MAN) connects LANs and BNs located in different areas to each other and to WANs. MANs typically span between three and 30 miles. For example a large university
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ESSAY ON LAN NETWORK • DEFINITION OF LAN • HARDWARE COMPONENTS OF LAN • SOFTWARE COMPONENTS OF LAN • DESCRIPTION OF EACH COMPONENT • DIFFERENT TOPOLOGY IN LAN • ADVANTAGES AND DISADVANTAGES OF EACH TOPOLOGY LAN : The typical definition of Local Area Network (LAN) is "two or more connected stations (PCs‚ servers‚ computer…) in the same limited area‚ sharing data and peripheral devices‚ and operating .The most popular LANs include 10 Mbps & 100 Mbps Ethernet‚ 4 Mbps
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History of LANs Data Communications began in the 1960s with an emphasis on communication over long distances — at least between different cities and often over much greater distances — but at relatively slow data transfer rates. At that time‚ that was what was needed. Most computing was done in batch mode‚ and companies needed an efficient way to transmit data processing files between computer sites. In the 1970s‚ interactive terminals began to proliferate‚ but most data communications took place
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Use case name: Request for Plotter sheet ID: 1 Importance level: High Primary actor: Student Short description: Events to happen when requesting for a plotter sheet. Trigger: Filled in Plotter Sheet Type: External Major Inputs Major Outputs Description Source Description Destination Subject Student EDP Code Student Filled in Plotter sheet Student Time Student Days Student Room No. Student Major Steps Performed Information for Steps
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with Use Cases McGraw-Hill/Irwin Copyright © 2007 by The McGraw-Hill Companies‚ Inc. All rights reserved. Objectives • Describe the benefits of use-case modeling. • Define actors and use cases and be able to identify them from context diagrams and other sources. • Describe the relationships that can appear on a usecase model diagram. • Describe the steps for preparing a use-case model. • Describe how to construct a use-case model diagram. • Describe the various sections of a use-case narrative
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LAN (Local Area Network) Proposal‚ Network Protocols The Wire Network Topologies Hubs and Routers Conceptual Diagram Conceptual Diagram (multi-story building) Recommendations: Horizontal Wiring EIA/TIA Horizontal Wiring Standards Example: Mellon Building Mellon Building Cost Estimate (excluding router) Glossary Network Protocols A network protocol is a method used to transport information. Each protocol has a certain capacity at which it can transfer information. This capacity is
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results of the past and present human activity‚ to the extent that these attributes influence on the present and future use of the land.” Land is an essential natural resource‚ both for the survival and prosperity of humanity‚ and for the maintenance of all terrestrial ecosystems. It serves many functions such as for production of food‚ fiber‚ fuel‚ or other biotic materials for human use‚ for provision of biological habitats for plants‚ animals and microorganisms‚ for the regulation of the storage and
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