Book excerpt: Over the years, a variety of software process models have been designed to structure, describe and prescribe the software systems construction process. More recently, software process modelling is increasingly dealing with new challenges raised by the tests that the software industry has to face. This book addresses these new trends in software process modeling related to: . OCo Processes for open source software;. OCo Systems dynamics to model and simulate the software process;. OCo Peopleware: the importance of people in the software development and by extension in the software process. One new software development trend is the development of open source projects. As such projects are a recent creation, the process model governing this type of developments is unfamiliar. This book deals with process modeling for open source software. It also deals with software process simulation applied to the management of software projects and improves the software development process capability according to CMM (Capability Maturity Model). Software development is a conjunction of: the organizational environment, the social environment and the technological environment. The inclusion of these environments will make it possible to output software process models that meet the specified organizational, cultural and technological requirements, providing an exhaustive analysis of the people in the software process, as well as supporting people-oriented software development. This book deals with the development of software by means of people-oriented process models that have proven to be very beneficial. Sample Chapter(s). Chapter 1: Discovering, Modeling, and Re-Enacting Open Source Software Development Processes: A Case Study (316 KB). Contents: Discovering, Modeling, and Re-enacting Open Source Software Development Processes: A Case Study (C Jensen & W Scacchi); Software Process Dynamics: Modeling, Simulation and Improvement (M Ruiz et al.); Software Process Simulation with System Dynamics OCo A Tool for Learning and Decision Support (D Pfahl et al.); High Level Software Project Modeling with System Dynamics (M De Oliveira Barros et al.); People-Oriented Capture, Display, and Use of Process Information (J Heidrich et al.); Requirements and Validation of the E3 Process Modeling System (L Jaccheri). Readership: Researchers, students and professionals of software process and development."