As with any process, the use of models, methods, and artifacts has associated costs related to time, level of expertise/proficiency in use, impact on productivity, etc. As much as possible, project teams should avoid models, methods, and artifacts that have the following characteristics, with the exception of: Question 3 options: duplicates or adds unnecessary effort is not useful to the project team and its stakeholders produces accurate or timely information caters to individual needs versus those of the project team