A system for managing and monitoring a project to be developed is provided. The system includes a first and a second document, the first document identifies a first set of interactions between a plurality of applications. The first set of interactions identifies functionality of the project to be developed. The second document identifies a second set of interactions within at least one of the applications. The second set of interactions identifies additional functionality of the project. The system also includes a baseline document and an estimator component. The baseline document identifies existing functions of interactions between the applications and existing functions of interactions within applications. The estimator component is operable to access the first, second, and baseline document and to count a number of interactions identified in the first and second sets of interactions not identified in the baseline document of existing functions of interactions.