The paper reports about the estimation of the development effort of real-time software using Function Points as the means for expressing the size of the software. The work reported was carried out in a European company that develops various types of avionic applications. The company started an exploratory activity aiming at improving their estimation process. The immediate goals were the identification of a reliable method for estimation-oriented software sizing, and the adoption of an estimation methodology and tool. In order to evaluate the applicability of Function Point based sizing in the avionic domain –which is characterized by real-time, embedded applications– seven pilot projects were measured and estimated. The results of the measurement and estimation are given in terms of: estimated size in LOCs, estimated development effort, differences with respect to the actual size and the actual effort spent. The outcomes of our work are that: FP-based sizing of real-time software is feasible and provides a reasonably good basis for the estimation. However, a thorough characterization of the product and process is also needed, in order to correctly parameterize the estimation model used.
Using Function Point in the Estimation of Real-Time Software: an Experience
LAVAZZA, LUIGI ANTONIO;
2008-01-01
Abstract
The paper reports about the estimation of the development effort of real-time software using Function Points as the means for expressing the size of the software. The work reported was carried out in a European company that develops various types of avionic applications. The company started an exploratory activity aiming at improving their estimation process. The immediate goals were the identification of a reliable method for estimation-oriented software sizing, and the adoption of an estimation methodology and tool. In order to evaluate the applicability of Function Point based sizing in the avionic domain –which is characterized by real-time, embedded applications– seven pilot projects were measured and estimated. The results of the measurement and estimation are given in terms of: estimated size in LOCs, estimated development effort, differences with respect to the actual size and the actual effort spent. The outcomes of our work are that: FP-based sizing of real-time software is feasible and provides a reasonably good basis for the estimation. However, a thorough characterization of the product and process is also needed, in order to correctly parameterize the estimation model used.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
