Εκτίμηση κόστους πληροφοριακών συστημάτων. Θεωρία και μελέτη περίπτωσης

Λάζαρης, Θεοφάνης Κ.

Master Thesis

Author

Λάζαρης, Θεοφάνης Κ.

Date

2014-07-22

Abstract

The current dissertation presents and analyzes the methods that are used in order to evaluate the cost of an information system. Furthermore, a method that fragments software with purpose to evaluate its size and complexity is presented. It describes the COCOMO metric and presents a case study which is evaluated with this method. More specifically, this study consists of five subchapters. In the first chapter current strategies that are used to evaluate an information system are presented. In the second chapter the LoC metric evaluation, a most used method for evaluating software, is described. Then, an estimation method of a software cost is extensively analyzed. In the third chapter the techniques of cost estimation and the current models are presented. Furthermore, the Constructive Cost Model (COCOMO) the most widespread and reliable method to evaluate software is analyzed. In the fourth chapter, the Function Point Analysis metric method is presented and a thorough analysis consists of the terms, the operations and the way that Function Points are calculated, as well as the method that applied to find the Adjusted Function Points (AFP). In the fifth chapter a case study is presented which outlines the process of finding the size of Debian software by counting its lines of code. The COCOMO metric is further used to evaluate the cost of the software.