The TAME (Tailoring A Measurement Environment) project at the University of Maryland has developed an improvement-oriented software engineering process model that integrates sound planning and analysis into the construction process. The model uses the goal/question/metric paradigm to formalize characterization and planning tasks, control and improve projects based on quantitative analysis, and facilitate deeper and more systematic learning about the software process and product. The TAME system is an instantiation of this model as an Integrated Software Engineering Environment (ISEE). The first prototype of the TAME system has been developed, and an assessment of its experience is presented, including a reassessment of its initial architecture. The long-term goal is to develop a better understanding of appropriate ISEE architectures that support the improvement-oriented TAME software engineering process model. The paper outlines the software engineering principles and measurement principles that underpin the TAME project, the automated support provided by the TAME system, and the functionality and initial experiences with the first TAME prototype.The TAME (Tailoring A Measurement Environment) project at the University of Maryland has developed an improvement-oriented software engineering process model that integrates sound planning and analysis into the construction process. The model uses the goal/question/metric paradigm to formalize characterization and planning tasks, control and improve projects based on quantitative analysis, and facilitate deeper and more systematic learning about the software process and product. The TAME system is an instantiation of this model as an Integrated Software Engineering Environment (ISEE). The first prototype of the TAME system has been developed, and an assessment of its experience is presented, including a reassessment of its initial architecture. The long-term goal is to develop a better understanding of appropriate ISEE architectures that support the improvement-oriented TAME software engineering process model. The paper outlines the software engineering principles and measurement principles that underpin the TAME project, the automated support provided by the TAME system, and the functionality and initial experiences with the first TAME prototype.