E-Cosmic: A Business Process Model Based Functional Size Estimation Approach

Date

2011-09-02

Author

Kaya, Mahir
Demirörs, Onur

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Software size is the key input for cost and effort estimation models. The effort and cost estimations as well as software size is needed at as early a phase of the project as possible. Conventional Early Functional Size Estimation methods enable predicting size at early phases but frequently variation of the results are high due to manual calculations and requirements of high degree of interpretation in situations where there is a lack of structured artifacts. On the other hand, automated Functional Size Measurement calculation approaches require constructs which are available in considerably late software development phases. In this study, an approach called e-Cosmic to overcome the reliability and subjectivity problems of early size estimation models is developed. As part of the approach a mapping between functional size measurement components of COSMIC FSM Method and common business process model constructs, was developed. The proposed method ( e-Cosmic) is validated by three case studies. The result of the case studies has consistently showed less than 10% deviation with respect to the COSMIC FSM results. In addition, the automation of the estimation procedure eliminated measurer dependency and effort in conventional early functional size estimation methods.

Subject Keywords

Early Size Estimation, Functional Size Measurement, Business Process Model

URI

https://hdl.handle.net/11511/56381

DOI

https://doi.org/10.1109/seaa.2011.60

Conference Name

Joint Conference of 14th EUROMICRO Digital Systems Design Conference (DSD) / 37th EUROMICRO Conference on Software Engineering and Advanced Applications (SEAA)

Collections

Graduate School of Informatics, Conference / Seminar

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PL FSM: An Approach and a Tool for the Application of FSM in SPL Environments Eren, Onder; ÖZKAN, BARIŞ; Demirörs, Onur (2015-08-28) In order to develop cost-efficient software it is crucial to measure the accurate software size. However; measuring the software size has up to now been almost entirely a manual process and, as such, is both time-consuming and prone to human error which can end up with time and money loss. Automation of this process is a must for the software developing companies to improve the quality of project and budget planning. This paper introduces a mapping between COSMIC concept elements and UML conceptual elements...
Reliability of COSMIC Functional Size Measurement Results: A Multiple Case Study on Industry Cases Top, Ozden Ozcan; Demirörs, Onur; Ozkan, Baris (2009-08-29) Accuracy of the functional size is critical in software project management, since functional size is the most prevalent input for effort and cost estimation models. Functional size measurement is performed based on standardized manuals; however, the accuracy of FSM results is still based on the knowledge and cautions of the measurers. In this study we performed a multiple case study to identify the reliability of COSMIC and to observe the frequently encountered errors during functional size measurement. Pro...
E-cosmic: a business process model based functional size estimation approach Kaya, Mahir; Demirörs, Onur; Department of Information Systems (2010) The cost and effort estimation of projects depend on software size. A software product size is needed at as early a phase of the project as possible. Conventional Early Functional Size Estimation methods generate size at the early phase but result in subjectivity and unrepeatability due to manual calculation. On the other hand, automated Functional Size Measurement calculation approaches require constructs which are available in considerably late software development phases. In this study we developed an ap...
Evaluation of the Effect of Functional Similarities on Development Effort Top, Ozden Ozcan; Tunalilar, Seckin; Demirörs, Onur (2008-09-05) Although functional size is the primary input for effort and cost estimation formulas, the relation between functional size and development effort does not always hold in practice. Calculating the magnitude of functional similarity is perceived as a partial solution to overcome this problem. In this study we applied different approaches to identify the magnitude of functional similarity in five projects. The applicability of these approaches is evaluated by observing the impact of functional similarity on e...
Exploration of an Error Prevention Model for COSMIC Functional Size Measurement Method Salmanoğlu, Murat; Demirörs, Onur (2012-10-19) The reliability of Functional size is crucial for effort and cost estimation in software development projects. However, estimation results may differ because of the errors made in the measurement process. This research proposes an error prevention model for COSMIC Functional Size Measurement method to increase the reliability of the measurements. The model has two main suggestions; first, to use the types of the functional processes during the measurement to prevent errors, and the second, to use a cardinal...

Citation Formats

M. Kaya and O. Demirörs, “E-Cosmic: A Business Process Model Based Functional Size Estimation Approach,” presented at the Joint Conference of 14th EUROMICRO Digital Systems Design Conference (DSD) / 37th EUROMICRO Conference on Software Engineering and Advanced Applications (SEAA), Univ Oulu, Oulu, FINLAND, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56381.