CMMI for Development, Version 1.2 TeamCMMI Product 2006 CMMI for Development (CMMI-DEV), Version 1.2 is an upgrade of CMMI-SE/SW/IPPD/SS, Version 1.1. The focus of the CMMI Version 1.2 effort is on improving the quality of CMMI products and the consistency of how they are applied. This report represents the model portion of the CMMI Product Suite. Other portions of the CMMI Product Suite include the SCAMPI A appraisal method and the Introduction to CMMI training course. CMMI now includes the concept of CMMI "constellations." A constellation is a set of CMMI components designed to meet the needs of a specific area of interest. A constellation can produce one or more related CMMI models and related appraisal and training materials. CMMI for Development is the first of these constellations. This report contains the two models that comprise the CMMI for Development constellation: the CMMI for Development and CMMI for Development +IPPD models. The report consists of three parts. Part one is the overview, which describes CMMI concepts, model components, and guidance on using the CMMI Product Suite. Part two contains the generic goals and practices and process areas, which are used by organizations to improve their development processes. Part three contains references, acronyms, project participants, and a glossary.