%0 Journal Article %T Cost Estimation: A Survey of Well-known Historic Cost Estimation Techniques %A Syed Ali Abbas %A Xiaofeng Liao %A Aqeel Ur Rehman %A Afshan Azam %J Journal of Emerging Trends in Computing and Information Sciences %D 2012 %I ARPN Publishers %X Number of contributors has made their efforts to produce different modeling techniques in last four decades. This paper is about the comprehensive descriptive exploration of the models that were presented in the early stages of the software estimation field and covers most of the famous available and practiced parametric models and few non-parametric techniques. All widespread models discussed at one place will give our readers a prospect to comprehend the pros and cons, similarities and the differences among these models %K Software cost Estimation models %K Effort Prediction %K analogy %K software Metrics %K line of code %U http://cisjournal.org/journalofcomputing/archive/vol3no4/vol3no4_22.pdf