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
Free OSI model
Explain the concept of ‘models’ and discuss the various types of models. Use appropriate examples. A model is a pattern‚ plan‚ representation‚ or description designed to show the structure or workings of an object‚ system‚ or concept. A model can come in many shapes‚ sizes‚ and styles. It is important to emphasize that a model is not the real world but merely a human construct to help us better understand real world systems. In general all models have an information input‚ an information processor
Premium Diagram Output Mathematics
Software Engineering SOFTWARE DEVELOPMENT • • • • • • • MODELS Build And Fix Model Prescriptive Model Water Fall Model Or Liner Sequential Model Incremental Model RAD Model Evolutionary Process Models Prototyping Spiral Model Concurrent Development Model Fourth Generation Techniques (4GT) Component Based Development (CBD) Agile Model Extreme programming Scrum Build And Fix Model • This model is the worst model for developing a project. The product is built without proper specifications
Premium Agile software development Software development process Waterfall model
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
Free OSI model Internet Protocol Suite
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
Premium Software development process Waterfall model Requirements analysis
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
Premium Relational model Object-oriented programming
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
Free Programming language Computer program Java
biopsychosocial model has been introduced to the world of medical approaches to healing health problems. This particular model has been better considered as a source of understanding that is much important especially when it comes to dealing with issues of development in the field of healthcare operations. Through this model‚ it has been noted that being able to see through the contributors of an ailment allows health care protectors the chance to see the most comprehensive approaches needed to be
Premium Medicine Biopsychosocial model Psychiatry
winning Business Model? Ramon Casadesus-Masanell and Joan E. Ricart‚ HBR Jan-Feb 2011 Because of the economic slowdown in developed economies and the mature markets more and more companies are encouraged to enter in emerging markets. We can observe an increasing pressure for MNE to enter in emerging economies by targeting middle and low Base of the Pyramid. The leading companies are targeting the BOP in emerging countries (India‚ Africa‚ Asia) by adopting innovative business models. Face to this
Premium Management Strategic management Low-cost carrier
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
Premium Abnormal psychology Psychology Sigmund Freud