Dear all, I am opening the thread. Here are my thought on what could be NA4 in EGEE3. The NA4 roles are: 1. to steer middleware development (requirements, prioritization, testing new services) 2. to help scientific communities exploiting the infrastructure (assistance, porting, demonstration of feasibility and induction) 3. to make/demonstrate production use of the infrastructure (large scale usage, scientific production) In EGEE2, these goals are difficult to reach for many reasons: 1. Middleware steering. The requirement analysis as been done in details in EGEE phase 1 already. There has been no addition to the requirements database in EGEE2 to my knowledge. However, triggering new middleware developments and making coordinated testing is something for which a formal process is not clearly established. This as been done on a case by case basis in the TCG working groups only. From my (biomed) experience, there is very little resources available for new development anyway thus strongly limiting this activity. 2. Exploiting the infrastructure. There is a huge gap between partners involved in the project and benefiting from NA4 resources for their application development and external scientific communities with hardly any support at all. In the current model, NA4 resources are very widespread. It let little place for common interest actions (assistance and porting, operating some specific services). More over, there is a regular demand of external projects to get assistance from EGEE engineers to get started to which we cannot respond. 3. production use. Achieved, especially by HEP, but we should probably ask for more feedback on scientific results. Suggestions based on this analysis: I think NA4 resources are too widespread. We should have a pool of engineers (preferably located in a same place, just like JRA1 is doing for efficiency) to work on common interest activities: - Operating application services (VOMS, File Catalogs, AMGA...) - Providing assistance to new comers - Dedicate effort to selected applications development (requires the selection of most interesting applications for grids, coming from internal or external partners, other EU projects, etc). - Common interest application-level services development (e.g. robust massive jobs submission as needed and developed concurrently by HEP, WISDOM and GROCK among others, short deadline jobs, etc). In any case, we should definitely avoid to have fractions of FTEs spread over tens of institutes for efficiency. This group would also help in having close contact with JRA1 for representing application needs and early testing of new services. To sustain the effort invested so far, some FTEs should be allocated de facto to successful application activities in EGEE2 but some reasonable manpower should be left available for this common interest activities. We need to make a selection of applications in which to put our effort based on criteria such as suitability of grids, added value and capability to hold the target application. We should as well follow on the selected project and get feedback on the scientific production to rediscuss the affectation of manpower to different applications. Regards, Johan