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HTASC - Report to HEP-CCC

HTASC - Report to HEP-CCC. David Kelsey, RAL d.p.kelsey@ rl.ac.uk 17 March 2000, CERN ( http://home.cern.ch/~eauge/htasc/public/). HTASC #14 9th/10th March 2000, CERN. Agenda included: HTASC sub-groups Security Group HEPNT/Windows 2000 Group Experiences of ‘OO’ programming (revisited)

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HTASC - Report to HEP-CCC

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  1. HTASC - Report to HEP-CCC David Kelsey, RALd.p.kelsey@ rl.ac.uk17 March 2000, CERN (http://home.cern.ch/~eauge/htasc/public/) D.P.Kelsey, HTASC report

  2. HTASC #14 9th/10th March 2000, CERN Agenda included: • HTASC sub-groups • Security Group • HEPNT/Windows 2000 Group • Experiences of ‘OO’ programming (revisited) • CERN’s CLASP project • Directories/LDAP in HEP • Future meetings/topics D.P.Kelsey, HTASC report

  3. Membership of HTASC • Members wishing to be replaced • E. Auge (France) - currently Secretary of HTASC • C. Declercq (Belgium) • 7 countries (+CERN) at meeting #14 (March 2000) • Several apologies at last moment, e.g.GRID meetings! • Perhaps substitutes should be arranged, if possible. • Any help from HEP-CCC encouraging members to attend would be welcome! • We need to appoint a new Secretary this summer. D.P.Kelsey, HTASC report

  4. HTASC sub-groups • Security group (Tobias Haas) • reported to HEP-CCC (Nov 99) • action on HTASC to collect list of HEP security contacts • this has started - Tobias Haas will coordinate, with help from HTASC members • Windows 2000 Coordination group • this was proposed at last HEP-CCC meeting (Nov 99) • Christian Trachimow (DESY) has agreed to chair this • First meeting will take place at DESY on 30/31 March just before the HEPiX/HEPNT meeting in Braunschweig (3-6 April) D.P.Kelsey, HTASC report

  5. Experiences of Object Oriented programming • In Oct 99: Neil Geddes (RAL/BaBar) • This meeting: Federico Carminati (CERN/ALICE)see slides • Discussion/Conclusions • No doubts remain about OO - it is successful! • too early to tell whether OO helps maintenance • An infrastructure (people and tools) is needed to support the core developers and users • Jury is still out on ‘Persistency’ • ALICE users like the ROOT framework • Federico stressed the importance of ‘users’ specifying their requirements D.P.Kelsey, HTASC report

  6. ‘OO’ Training Conclusions(repeated from Nov 99) • Training is essential • in OO design for the core software team • needs to be within experiment’s environment and at the right time. Also needs to continue. • abstract training is of much less use • HTASC members reported lack of funds - ideally to be chanelled through the experiments • there is a lack of suitably qualified trainers • Three levels of training for users • general introduction • ‘hands on’ - use of experiment’s applications • new people need colleagues to ‘hand hold’ (mentoring) D.P.Kelsey, HTASC report

  7. CLASP project • Denise Heagerty (CERN) - see slides • Common Login and Access rights across Services Plan • Discussion/Conclusions • a very interesting project - to be encouraged. • technologies (Kerberos 5, LDAP, PKI) being studied are all important for GRIDs • HTASC agreed to inform Denise of others working in this area and to provide lists of outside users prepared to review the impact. D.P.Kelsey, HTASC report

  8. Directories/LDAP • Background • several interesting presentations at April 99 and Oct 99 HEPiX/HEPNT meetings • Windows 2000/Active Directory uses LDAP • Invited the active people to HTASC • See slides from 4 talks • Why and How LDAP in HEP? (Michel Jouvin, IN2P3) • IN2P3 Directory Services (Helene Jamet, IN2P3) • CERN LDAP project (Ray Jackson, CERN) • Groupware issues/LDAP (Arnaud Taddei, CERN) D.P.Kelsey, HTASC report

  9. Directories/LDAP (2) • Discussion/Conclusions • Directories/LDAP are becoming very important - Windows 2000, GRIDs, common access rights (e-groups), etc. • HTASC was impressed by the work done and recommends that more countries/institutes should be included. • must not make the problem too broad, but move quickly • HTASC recommendation • The IN2P3/CERN people should be encouraged to set up a meeting in Europe to expand the White Pages LDAP service to more sites. (They complain of lack of time/funds to meet) • After this has happened, we should consider the need for a longer term LDAP coordination group. D.P.Kelsey, HTASC report

  10. Future HTASC meetings/Topics(provisional dates/plans) • 8/9 June 2000 (not CERN - a Regional Centre - tbc) • Issues for Regional Centres (GRIDs?) • First report/plans from Windows 2000 coordination sub-group • 19/20 October 2000 (CERN) • Markup Languages • revisit LDAP? • revisit network security? • March 2001 (CERN) • Networking/Diffserv/QoS • Other possible topics?: • Certificates/PKI/Digital signatures • ideas always welcome! D.P.Kelsey, HTASC report

  11. Format of web documents • The HTASC web needs a cleanup • job for the new secretary! • HTASC discussed the format of web copies of documents and presentations • strong feelings! • should avoid using only ‘closed’ formats (e.g.MS Office) • As a ‘coordinating’ body we should lead the way! • Presentations should be easy to print. • Our suggestion is to always include a PDF version (postscript not so easy to handle) • We ask HEP-CCC to consider same for its web D.P.Kelsey, HTASC report

  12. Summary • HTASC invites HEP-CCC to • facilitate an HEP LDAP meeting - to take place soon. • Provide travel funds and support • help encourage HTASC membership/participation • consider including PDF format documents on its web-site • suggest future topics for HTASC consideration D.P.Kelsey, HTASC report

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