Download Caustics, Catastrophes and Wave Fields by Yu.A. Kravtsov PDF

By Yu.A. Kravtsov

Caustics, Catastrophes and Wave Fields in a feeling maintains the remedy of the sooner quantity 6 "Geometrical Optics of Inhomogeneous Media" within the current ebook sequence, by way of analysing caustics and their fields at the foundation of contemporary disaster concept. This quantity covers the foremost generalisations of geometrical optics on the topic of caustic asymptotic expansions: The Lewis-Kravtsov approach to commonplace services, Maslov's approach to caonical operators, Orlov's approach to interference integrals, in addition to their transformations for penumbra, space-time, random and different varieties of caustics. the entire equipment are amply illustrated by means of labored difficulties touching on suitable wave-field purposes.

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A retry prompt can get the caller unstuck by including the phrase "&" To be more foolproof, retry and timeout prompts should include further information about how to answer the question, but not so much information that it overwhelms the caller. Often the easiest way to do this is by providing a quick example. '" This tells the caller what format to use in answering the question. " This approach is obviously better suited to questions with a limited number of possible responses not hundreds, as in the vehicle example above.

Success Prompt A success prompt is played when a caller has successfully exited the current state and is entering the next state. " Failure Prompt A failure prompt is played when callers have tried and failed to answer a question several times. They're obviously stuck and need to be either transferred to a "live" representative in a call center, or re-oriented (perhaps by being returned to the main menu). A typical failure prompt goes something like this: "Sorry, but it seems we're having problems.

For example, let's say a brainstorming session generates 100 good ideas for everything from call flow to prompts to the use of corporate theme music. The designer can then organize these ideas into groups so that the tradeoffs between similar concepts can be evaluated on the basis of quality, priority, appropriateness, and feasibility. Keep in mind that some ideas are more vague than others and need to be treated as such. Sometimes, however, the ideas might fit into particular categories such as: • Navigation commands • Specific task handling • Wording choices • Call flow structures • Database issues • Need for additional technology (such as text-to-speech engines) After grouping the ideas and evaluating them, you start conceptualizing individual elements of how the system will function and sound, looking for opportunities to make a design that makes the experience easier, faster, and more productive for callers.

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