%0 Journal Article %T Amplitude Analysis %A Ron Workman %J Physics %D 1998 %I arXiv %X Even if a `complete set' of experimental observables were measured for the elastic scattering or photo/electroproduction of pseudoscalar mesons, ambiguities would remain in the extracted partial-wave and isospin decomposed amplitudes. As these problems are not widely understood, the present work outlines the way model-dependence enters into analyses of data from both hadronic and electromagnetic facilities. %U http://arxiv.org/abs/nucl-th/9807053v1