This study deals with an attempt to apply Lean theories on information processing. Lean is amanagement concept that was developed in the United States in the 60's and 70's. Its popularity hascome and gone in waves, but today is a widespread standard in the automotive and engineeringindustries. The cornerstones of Lean philosophy are to manage resources efficiently by eliminatingwaste and processes that do not add value to the customer. Applying Lean theories on informationmanagement is a relatively new concept and in the current situation there are not any widely acceptedand recognized tools and methods.The study was made at SJ's service depot in Hagalund, Stockholm and focuses on work processes ofthe vehicle management in the service depot. The goal of the study was to analyze and evaluate thedepot vehicle management processes and develop concrete proposals for improvements and test themin the daily operation. In this study the focus has been around vehicle management work processes andthe work is distinct from the system used in the daily work.Through observations and interviews alongside literature studies a picture of the current situation wascreated. Based on the theoretical framework developed, the current situation was analyzed bycomparison with the theoretical framework. The study has consistently been exploratory as somebackground information about the area and its problems were lacking. The analysis was performed byapplying theory and methods on empirical data on which this analysis compiled an image of problemsin the organization.From the analysis, a second analysis of a selected problem was made. A principle of informationmanagement were developed and then tested. Based on the test and the results of the analysisconclusions were drawn about how Lean can be applied to information management and how thiscould be applied in reality. The basis of the analysis presented major problems as 1) not being able toprioritize problem, 2) poor communication and 3) occasionally huge information loads in the vehiclemanagement process.