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Parametric models Formal estimation model COCOMO, SLIM, SEER-SEM, TruePlanning for Software: Size-based estimation models [15] Formal estimation model Function Point Analysis, [16] Use Case Analysis, Use Case Points, SSU (Software Size Unit), Story points-based estimation in Agile software development, Object Points: Group estimation Expert ...
The Constructive Cost Model (COCOMO) is a procedural software cost estimation model developed by Barry W. Boehm. The model parameters are derived from fitting a regression formula using data from historical projects (63 projects for COCOMO 81 and 163 projects for COCOMO II).
The method was popularized by Boehm's book Software Engineering Economics (1981). Boehm's original steps from this book were: Coordinator presents each expert with a specification and an estimation form. Coordinator calls a group meeting in which the experts discuss estimation issues with the coordinator and each other.
The Putnam model is an empirical software effort estimation model [1] created by Lawrence H. Putnam in 1978. Measurements of a software project is collected (e.g., effort in man-years, elapsed time, and lines of code) and an equation fitted to the data using regression analysis .
Planning poker is a variation of the Wideband delphi method. It is most commonly used in agile software development , in particular in Scrum and Extreme Programming . Agile software development methods recommend the use of Planning Poker for estimating the size of user stories and developing release and iteration plans.
The Use Case Points method (UCP) Weighted Micro Function Points (WMFP) Wideband Delphi; Most cost software development estimation techniques involve estimating or measuring software size first and then applying some knowledge of historical of cost per unit of size. Software size is typically sized in SLOC, Function Point or Agile story points.
Agile modeling (AM) is a methodology for modeling and documenting software systems based on best practices. It is a collection of values and principles that can be applied on an (agile) software development project. This methodology is more flexible than traditional modeling methods, making it a better fit in a fast-changing environment. [1]
Cohn is the founder of Mountain Goat Software, a process and project management consultancy and training firm. [6] He is the author of Agile Estimating and Planning, User Stories Applied for Agile Software Development and Succeeding with Agile: Software Development using Scrum, as well as books on Java and C++ programming. [7]