Comparison and analysis of software product line models

To help make decisions while applying software product line paradigm,twenty software product line cost models are analyzed.A compared framework of software product line model is presented based on analyzing investment cycle,method of reused time value of money,economic functions,cost factors and cost of reused of software cost models.Five typical models are analyzed in detail in the framework.Cost estimation and investment analysis are both presented while applying software product line paradigm.Existing problems and development directions of product line models are also discussed based on the analysis.