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A small provider of web applications required a robust and cost-effective approach for project planning and risk management. The currently used method based on expert judgment did not meet those objectives. There was no specific size measure initially defined; however, the characteristics of about 12 already completed projects were documented. The size of the software was measured using the Web Objects metric. Web Objects are an extension of classical Function Point measures that address specific characteristics of web development. They were proposed in: D. Reifer. “Ten deadly Risks in Internet and Intranet Software Development.” IEEE Software, vol. 18, no. 2, March/April 2002, pp. 12-14.


Costs of introducing CoBRA® and model building

Involved personnel: 5 team members, 2 external consultants
Duration: around 6,5 months:

Setup phase (preparation, context characterization, identification of relevant effort drivers, definition of required metrics, etc.): 8 weeks

Developing causal effort model: 2 weeks

Data collection and preparation: 11.5 weeks

Effort model development and validation: 5 weeks

M. Ruhe, R. Jeffery, I. Wieczorek
Cost estimation for web applications

Proceedings of the 25th International Conference on Software Engineering, pp. 285- 294. 2003