Software Engineering Economics
Software Engineering Economics
An analysis of the resources used in the SAFEGUARD system software development
ICSE '76 Proceedings of the 2nd international conference on Software engineering
Estimeetings: Development Estimates and a Front-End Process for a Large Project
IEEE Transactions on Software Engineering
Ultra-structure: a design theory for complex systems and processes
Communications of the ACM
Cost estimation of software intensive projects: a survey of current practices
ICSE '91 Proceedings of the 13th international conference on Software engineering
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Estimation of development time for multimillion-line software is addressed. Three methods are discussed. The historical-database approach finds the statistical trend line by regression analysis that relates project development time to size in source lines, and extends it to a ten-million-line size. The software macroestimation methods, Cocomo (cost constructive model) and the software life-cycle model, forecast labor effort and schedule from early estimates of the amount of functionality in the project. The three methods all point to the conclusion that a large amount of time must be allowed.