Understanding the OSI Model November 26‚ 2012 Understanding the OSI Model The Open Systems Interconnection (OSI) Model is a reference tool for understanding data communications between any two networked systems (Simoneau‚ 2012). The OSI Model dissects the communication process down to seven layers‚ where each layer performs specific functions. It helps break a network down to controllable pieces; without this OSI Model networks would be difficult to comprehend. The OSI Models’ seven-layers consist
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The OSI‚ or Open System Interconnection‚ model defines a networking framework for implementing protocols in seven layers. Control is passed from one layer to the next‚ starting at the application layer in one station‚ and proceeding to the bottom layer‚ over the channel to the next station and back up the hierarchy. The OSI model is not a real network architecture‚ because it does not really specify the services and protocols each layer should use. It rather describes what the layers must do. Nevertheless
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disadvantages of Waterfall model. When to use it? When not to use it? How is it related to the Scope? (25 points) Answer – As the name suggests it is a simple process which is one way and does not have flexibility to revise the process phase already completed same as water once fall cannot jump back to its initial position. In this model one phase is completed and reviewed fully to enter the next phase. In this model phase do not overlap. Advantages :- • It is a simple model. • Each phase
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ASSIGNMENT ON PSY 310 “FOUR MODELS OF ABNORMAL BEHAVOURS” BY ODEH‚ JENNIFER OMARI BSU/PSY/UG/09/9532 What Are Models? Models are representations containing the essential structures of some object or event in the real world. There is a variety of things that are commonly referred to as models: physical objects‚ fictional objects‚ set-theoretic structures‚ descriptions‚ equations‚ or combinations of some of these. However‚ these categories are neither mutually exclusive
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Business Model Generation- http://www.slideshare.net/techdude/business-model-generation Canvas Definition of Business Model: A business model describes the rationale of how an organization creates‚ delivers and captures value. This book offers a concept that allows you to describe and think through the business model at your organization‚ your competitors‚ or any other enterprise. The authors believe that a business model can best be described through nine basic building blocks that show the logic
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Comparing and Contrasting the Relational Database Model and OO Model The relational database model is based upon tables or relations. In this model‚ the physical implementation of the database is abstracted away from the user. Users query the database using a high-level query language‚ such as SQL. The relations are made up of columns‚ which have headings indicating the attribute represented by that column. Tables have key fields‚ which can be used to identify unique records. Keys relate tables
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Doing Something New with Something Old Using Business Model Innovation to Reinvent the Core The Boston Consulting Group (BCG) is a global management consulting firm and the world’s leading advisor on business strategy. We partner with clients from the private‚ public‚ and not-forprofit sectors in all regions to identify their highest-value opportunities‚ address their most critical challenges‚ and transform their enterprises. Our customized approach combines deep in ight s into the
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2 MODELS FOR THE VALUATION OF SHARES. 2.1 The concept of a cost of equity The cost of equity is the cost to the company of providing equity holders with the return they require on their investment. The primary financial objective is to maximize the return to equity shareholders. This return is as the future dividend yield and capital growth. Until new shareholders become members of the company‚ the objective above is concerned with existing shareholders. Company management will need to offer
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Network Models 2.1 THE OSI MODEL •Established in 1947‚ the International Standards 1947‚ Organization (ISO) is a multinational body dedicated to ISO) worldwide agreement on international standards. standards. •An ISO standard that covers all aspects of network communications is the Open Systems Interconnection (OSI) model. It was first introduced in the late 1970s. OSI) model. 1970s • the open system is the set of protocols that allows any two different systems to communicate without regarding
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DOMAIN MODEL REFINEMENT DEFINITION A domain model‚ or Domain Object Model (DOM) in problem solving and software engineering can be thought of as a conceptual model of a domain of interest (often referred to as a problem domain) which describes the various entities‚ their attributes and relationships‚ plus the constraints that govern the integrity of the model elements comprising that problem domain. A detailed software development plan‚ containing: An updated risk assessment‚ A management
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