Information product quality has long been considered undefinable, but that must change if we are ever to improve the quality of our work beyond present levels. Information product quality can usefully be defined as measurable con-formance to requirements. Requirements come from three sources: customers, clients, and professional standards. By determining our customers' and clients' critical needs, we can devise conformance metrics. This formulation can be applied in the context of many organizational quality improvement programs, such as benchmarking, continuous improvement, ISO 9000, and (with reservations) Six Sigma.
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