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spiral model is just like incremental model but in spiral emphasize is on risk analysis.
Non linear Incremental Structural Analysis
it is increasing the incremental cash flow
analysis
in the commercial and for commercial software and break through software we can use the incrimental model.we can understand the model which can we use .
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onnuma thareyala
Build Simple Models, Employ Cost-Benefit Analysis, Take Small, Incremental Steps
vertical analysis
The incremental reasoning is used in accepting or rejecting a business proposition or option. Whenever a manager takes decision he asks the question "Is it worthwhile?" The implicit criterion is that incremental benefit of the decision should exceed its incremental costs. Decision or action is worthwhile already if the decision maker or is the firm can expect to be better off than before. Original reasoning forces manager to examine the changes in total revenues and total costs resulting for changes in production, sales, price and related decisions. Wrong decisions may follow if the focus is on the concept of average rather than on marginal analysis.The two basic components of incremental reasoning are 1) Incremental cost 2) Incremental Revenue
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