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The Computer Journal 2004 47(3):358-372; doi:10.1093/comjnl/47.3.358
© 2004 by British Computer Society
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A System for Measuring Function Points from an ER–DFD Specification

Evelina Lamma1,*, Paola Mello2,¶ and Fabrizio Riguzzi1,§

1 Dipartimento di Ingegneria, Università di Ferrara, via Saragat, 1 44100 Ferrara, Italy 2 DEIS—Università di Bologna, Viale Risorgimento, 2 40136 Bologna, Italy

We present a tool for measuring the Function Point (FP) software metric from the specification of a software system expressed in the form of an Entity Relationship (ER) diagram plus a Data Flow Diagram (DFD). First, the informal and general FP counting rules are translated into rigorous rules expressing properties of the ER–DFD. Then, the rigorous rules are translated into Prolog. The measures given by the system on a number of case studies are in accordance with those of human experts.

Received 16 January 2003. Revised 15 October 2003.

* Email: elamma{at}ing.unife.it

§ Email: friguzzi{at}ing.unife.it

Email: pmello{at}deis.unibo.it


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