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1 2010

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Enhancing Use-Case-Based Effort Estimation with Transaction Types

Ochodek M., Nawrocki J.

Foundations of Computing and Decision Sciences

2010

Vol. 35, No. 2

91-105

Most of the use-case-based effort estimation techniques rely on a concept of use-case transaction that is used for measuring complexity of use cases. This includes the most recognizable Karner's Use Case Points and the Transactions metric recently proposed by Robiolo and Orosco. Both approaches are focusing on quantitative aspects of use-case transactions. However, in this paper, we would like to propose a new method for measuring use-case complexity that is called TTPoints. It includes knowledge regarding semantics of transactions, numbers of business objects and interacting actors. Effort estimation accuracy of the proposed method was compared to accuracies of Use Case Points, Transactions, and Entity Objects, in the case study on a set of 8 projects.