Essay --

Relative Strength and weaknesses of determineing, simulation and prototyping.StrengthsIt helps to get an all over t appear ensemble structure for a colonial clay. Creating a model involves the system of rules designer and the clients. Therefore it is adequate to consent an idea of what the end product will turn show up to be.Modeling and simulation allows the designers to compute values for different inputs which is difficult to hit in the real world. It is cost effective. If the model and simulations are reliable it cuts coldcock on the money required for testing.WeaknessesIn making a model the requirements of the client or the main problem to be addressed whitethorn be misplaced.The models and simulations may not be accurate in all conditions in reality.The models can be too simplistic to solve problems involving complex problemsDesigners may over rely on models on simulations than existing testing. bad assumptions in modelling, simulation and prototypingOne the examples I would like to point out is the flight which crashed on August 16th 1987, the plane was a Mc Donnell Douglous MD-80 operated by the Northwest Airlines. The reason for the crash according to the NTSB was that the aircraft was not mold up for take-off properly by the crew due to failure in adhering to the pre-flight checklist. 1 Another factor which contributed to the mishap was the failure of the flight takeoff pattern system which did not indicate to the flight crew that the flight was improperly set up for takeoff. This failure of the takeoff system was due to the going away in power to the warning system due to circuit failure. wherefore is this a simulation error? It is because in the flight simulator this warning system flashed a light when the system was down but in the actual ... ...ight budget and timeframe, this led to engineers relying more on models and simulations than actual testing. Models like the Radar-terrain fundamental interaction and Dynamical control effect s of pulse-mode propulsion were not properly validate due budget constraints. This reliance on software models and simulations may have caused the MPL to be destroyed. These tools can be used but their limitations should also be known. In order to minimize these failures a decisive decision should be taken early in the development stages by experts and experienced system architects and engineers this will minimize the errors made in the finishing stages. Risk opinion should be carried out whenever analysis are based on models and simulations without universe validated by actual testing. This will help reduce the over reliance on models and simulations by the engineers. 4References1.