Cost-containment pressures worldwide are increasing the demand on drug developers to demonstrate the value of products in order to obtain reimbursement. To meet this demand, developers are turning to economic models. While models are informative tools, they can be expensive to produce, their complexity makes them difficult to understand and the lack of standardized formatting makes them hard to navigate. OBJECTIVE: To develop a low cost tool that allows model results to be viewed in a standard format and to increase interdisciplinary access models in order to support wider use in the development and marketing of new pharmaceuticals. METHODS: An electronic viewer (MODEL-IT) was developed as a "container" to display and run analyses of disease models. Building on the widespread familiarity of Windows(c), the tool was programmed to work as a stand-alone application in a Win2000, WinXT, or WinNT environment. Screens were developed to display inputs and outcomes pertinent to the model being analyzed, while maintaining a consistent format. Incorporation of point and click technology was used to simplify model functions by programming buttons to carry out specific tasks. RESULTS: The MODEL-IT tool breaks input parameters into specific categories including drug efficacy, population characteristics and country-specific costs. All fields are editable. Outcomes are model-specific and include costs, survival and cost-effectiveness. Model edits can be saved for later use, printed and exported to other programs. To allow users access to detailed model information, the technical manual can be accessed through a button control. CONCLUSIONS: Current trends in the increased use of pharmacoeconomic analysis will demand standardization of models to streamline efficiency and transfer expertise to multidisciplinary users. Standardized user interfaces will become increasingly important in meeting these needs.