The computerized morphological parser, AMPLE, grew out of work in computer assisted dialect adaptation. AMPLE contains no language-specific code, but is controlled entirely through external, user-written files, the notations of which were designed for linguists. AMPLE's constructs are linguistic: e.g., allomorph, morpheme, conditioning environment, co-occurrence constraint, etc. The fundamental algorithm is to: (1) discover all possible decompositions of a word into allomorphs; and (2) to eliminate those that fail any conditions, constraints, or tests imposed by the user. This match-and-filter algorithm allows a highly modular approach to morphological parsing. Strong rejection of incorrect analyses is achieved by the combined effect of diverse filters, each expressed simply in a notation appropriate to the phenomenon. AMPLE is a good tool for exploring morphology because of the flexibility resulting from this modularity, and it is usable by computationally unsophisticated linguists because its notations are linguistic rather than computational. (MSE)