The Point of Function Points.A unit of software workGenerated during the requirements stage for size and effort estimation.Worst estimation technique, ahead of all the others.Something to count at the requirements stage as opposed to lines of code.Calibrated to type of software and past staff performance.įunction Point Users GroupThe standard for function point counting is International Function Point Users Group (IFPUG) classes, seminars and certification.Maintain data bases and references. Fields are:First NameLast NameStock Number of Item PurchasedQuantity PurchasedDate of PurchaseAll records within the program may be created, modified or deleted.How long will it take and how much will it cost to write this program? Program Estimation ExampleInventory data base, controlled by another program, is referenced for orders.Stock NumberQuantity in StockSelling PriceCustomer order data base is maintained by the program. Fields are:First NameLast NameStreet AddressCityStateZip CodePhone NumberInitial Contact Date
Program Estimation ExamplePhone order company thinks they need a customer / order taking program.New customer contact information is entered into data base controlled by the program. Software Project Cost EstimationUsingFunction PointsBy Drew Tkac