Melissa Bargmann, MS, Mech Engineering, 2002 VISUAL REPRESENTATION OF BASIC ACTIVITY-BASED COST AND ENVIRONMENTAL MANAGEMENT MODEL A significant characteristic of the spreadsheet-based Activity-Based Cost and Environmental Management (ABCEM) tool described in this thesis is the flexibility of the implementation within spreadsheet format. This flexibility supports the modeling of a variety of different manufacturing operations. Although we recognize that there are numerous ways in which the ABCEM model can be represented within a workbook file, we also acknowledge the need for a general standard format that can be used as a framework within which to build an ABCEM model.