ABSTRACTGreat strides have been made in computerized Foodservice Management Decision Support Systems (MDSS). Managers could benefit from having standard readily available information in the areas of menu planning, nutrient analysis, procurement, menu item costing, and budgeting. An impediment to such standard applications is the requirement that the managers convert all recipes and procedures from convenient recipe units and measures to restrictive, single use units. Such requirements do not allow managers to use ingredient units in the form normally encountered in the foodservice industry. To avoid this intimidation and potential rejection of useful computer‐assisted approaches to foodservice management, a structure which enables the computer system to conform to the foodservice needs is required. The proposed solution incorporates issue units with applied matrix data structures. The benefits to be derived would include reduced time requirements for installation, instruction, and continued maintenance. Data entry errors would be reduced by having the computer do the internal conversion manipulations. The proposed solution is shown with an example focusing on the costing of oatmeal muffin