The purpose of the study is to determine the effectiveness and safety of the computer software program in providing insulin dosage recommendations. Participation in the study for 60 research subjects will last for 16-weeks and includes 3-4 clinic visits and a series of weekly telephone calls from the study team (minimum of 12 calls). Participants will be provided with weekly Study Log Sheets to record their daily blood glucose readings, insulin doses, grams of carbohydrate eaten at each meal (if they have type-1 diabetes) and any changes in their health (e.g., hypoglycemic episodes, illnesses). Participants will fax or drop off a copy of the Study Log Sheet. This information will be entered by the IDC study team into the computer software program. The IDC study team will review the information from the software and, based on the IDC's study team approval, any insulin dose changes will be communicated back to the patient by phone or fax.