Development a Pattern of the Project Lessons Learned Implementation in Knowledge Management System

Knowledge and lessons learned of projects implementation are one of most valuable and attainable assets in them. Use of previous projects knowledge and LL prepares better condition (in time, cost and quality) in implementation of current and future projects. But because memory weakness of projects if it does not have suitable identification, acquisition and sharing knowledge and LL, they are gradually forgotten. In line with this need, in the present paper on the one hand with study 1.litrature of knowledge management, 2. Knowledge management models, 3.compare of knowledge management models and 4.extraction success criteria of K.M implementation, and on the other with study SEPANIR corporate and its needs in knowledge management system first selection the base model from studied models. After that the base model is developed from two perspectives 1.oprational processes and relations between them, 2. Preparing the infrastructure of K.M system. Validation model is done in two stage (1. Present of model to 7 experts with semi-structured interview 2.Distribution questionnaire to 34 experts).