Seismic modeling plays an important role in data acquisition, processing, interpretation, and reservoir characterization, making the results more effective and reliable. The simplest form of seismic modeling is the generation of synthetic seismograms from well logs (forward modeling) and its subsequent comparison with seismic data. Another common process is the generation of pseudologs from seismic data (inverse modeling) and using the results in those parts of the seismic volume where there is not enough well control. Seismic modeling is important, therefore, for both forward and inverse problems. One straightforward application of seismic forward modeling is the development of models to address problems of structure and stratigraphy during the interpretation of seismic data. This helps an interpreter relate the modeled seismic response generated from a hypothesized geologic model with the seismic data being interpreted. Another application is in the design of seismic acquisition geometries and the simulation of the seismic response that would occur if the target objectives were met.