Configuration Management (Ali Mollabagher.Com)

Islamic Azad University Science & Research Campus IT Management Structured System Analysis & Design Method Configuration Management Instructor Dr.Motadel Presented by: Hamed Godazgar Ali Mollabagher Eshrat Shafaat nd 2 Semester of 2008-2009 1

Content • Why Configuration Management ? • What Is Configuration Management ? • History • Configuration Items • Planning • Configuration Management Control • Benefits • Costs & Risks • Conclusion • References Copyright © 2008-2009 Ali- 4 Mollabagher.com | All rights reserved

Why Presenting Configuration Management ? The Information Technology Infrastructure Library (ITIL) is a set of concepts and policies for managing information technology (IT) infrastructure, development and operations & Configuration Management is one of these standards. Copyright © 2008-2009 Ali- 5 Mollabagher.com | All rights reserved

Why we use Configuration Management ? It is used to track the system after change as it require, change occur due to following reasons. To make system cross-platform Accommodating new functionality Tailored for particular user requirements Copyright © 2008-2009 Ali- 6 Mollabagher.com | All rights reserved

What Is Configuration Management ? Define Manage Control Audit Changes made to the original system Establish system Maintain system integrity integrity Copyright © 2008-2009 Ali- 7 Mollabagher.com | All rights reserved

Configuration Items Program code Standards, and procedures listings Maintenance requests Testing, operatio n, and execution Design plans specifications Manuals (user, operation, command, and system) System specifications Problem and error reports Set of resources to support configuration management an aggregation of hardware, software, or documentation which is designed for configuration control Copyright © 2008-2009 Ali- 9 Mollabagher.com | All rights reserved

Planning 1.Establish a configuration management plan 2.Responsible developers and maintainers must be identified Planning 3.Budget must be defined 4.Must be ensure that the appropriate tools and documentation are available. 5.Configuration items are collected. Copyright © 2008-2009 Ali- 10 Mollabagher.com | All rights reserved

Configuration Control 1.Establishing a baseline 2.Version control Configuration control 3.Freezing the system 4.Benchmarks 5. Regression testing 6.Establishing a new baseline Copyright © 2008-2009 Ali- 11 Mollabagher.com | All rights reserved

Initial line as a reference point for all other measurements. outcome or milestone of system development The version of the system on which the final system test is performed might serve as the initial baseline. Copyright © 2008-2009 Ali- 12 Mollabagher.com | All rights reserved

In subsequent releases,  the major number is increased when there are significant jumps in functionality,  the minor number is incremented when only minor features or significant fixes have been added, and  the revision number is incremented when minor bugs are fixed. Copyright © 2008-2009 Ali- 14 Mollabagher.com | All rights reserved

Designating development stage 0 For alpha status 1 For beta status 2 For release candidate 3 For public release 1.2.0.1 Instead of 1.2-a 1.2.1.2 Instead of 1.2-b2 (beta with some bug fixes) 1.2.2.3 Instead of 1.2-rc 1.2.3.0 Instead of 1.2-r (commercial distribution) 1.2.3.5 Instead of 1.2-r5 (commercial distribution with many bug fixes) Copyright © 2008-2009 Ali- 16 Mollabagher.com | All rights reserved

Windows 95 4.0 Windows 98 4.10 Windows Me 4.90 Windows 2000 NT 5.0 Windows XP NT 5.1 Windows 2003 NT 5.2 Windows Vista NT 6.0 Windows 7 NT 6.1 Copyright © 2008-2009 Ali- 17 Mollabagher.com | All rights reserved

Involves archiving the entire system, including : The executable programs Data files Source code, Related documentation. The archive can be used to reestablish the pre-change version. Copyright © 2008-2009 Ali- 19 Mollabagher.com | All rights reserved

At the time the system is frozen, benchmark measurements (execution time, response time, and the like) should be taken for the system. Copyright © 2008-2009 Ali- 20 Mollabagher.com | All rights reserved

To measure how the change affected response time and other standard performance metrics. Benchmark measurements taken on the baseline is the key to regression testing. Copyright © 2008-2009 Ali- 21 Mollabagher.com | All rights reserved

After approval is granted, the production system is frozen, the new version of the test system becomes the production system, and a new baseline is established. Copyright © 2008-2009 Ali- 22 Mollabagher.com | All rights reserved

Configuration auditing and reporting  The purpose of configuration auditing is to ensure that the approved changes have been implemented. The purpose of configuration reporting is to ensure that the changes are broadcast Copyright © 2008-2009 Ali- 23 Mollabagher.com | All rights reserved

Benefits of Configuration Management Improves Decreases Product protection Rework Product visibility Confusion Product control Project Risk Team communication Customer Confidence 24

Costs of Configuration Management Costs are outweighed by benefits, because Configuration Management allows handling of a large volume of changes, thus keeping quality. Configuration Management control reduces risks of viruses, wrong software, fraud, theft, and so on. Staff costs for developing and running procedures Hardware and software configuration identification Hardware and software for the CMDB & DSL Customization of Configuration Management tool Integration with other Service Management tools Training and education 25

Risks of Configuration Management CIs with too much or too little detail Interfaces to other systems in which CI information is stored Keep the information in the CMDB accurate Roles and responsibilities Lack of configuration control Overambitious schedules and unrealistic expectations No commitment from management Copyright © 2008-2009 Ali- 26 Mollabagher.com | All rights reserved

Conclusion • Configuration Management is a component of ITIL Standard for implementing IT in enterprises • Changes are inevitable in the system so keeping track of changes is an essential task . • The duty of configuration management is to define, manage changes by planning and controlling them from analyzing to the end of system existence. Copyright © 2008-2009 Ali- 28 Mollabagher.com | All rights reserved

References 1.The information system consultant’s handbook : system Analysis and Design / chapter 80/configuration management 1.http://www.atlasfarhang.com/History.aspx 2.IBM.Press.Implementing.ITIL.Configuration.Management 3.^ APMG (2008). \"ITIL® Service Management Practices: V3 Qualifications Scheme\" (HTML). http://www.itil-officialsite.com/nmsruntime/saveasdialog.asp?lID=572&sID=86 . Retrieved on 2009-02-24. 1.^ Office of Government Commerce (2006). “ Best Practice portfolio: new contracts awarded for publishing and accreditation services\" (HTML). http://www.ogc.gov.uk/About_OGC_news_4906.asp . Retrieved on 2006-09-19. 1.^ Office of Government Commerce (2008). \"Best Management Practice: ITIL® V3 and ISO/IEC 20000\" (HTML). http://www.best-management-practice.com/gempdf/ITIL_and_ISO_20000_March08.pdf Copyright © 2008-2009 Ali- 29 Mollabagher.com | All rights reserved

References . Retrieved on 2009-02-24. 1.^ The IT Skeptic (2008). \"Three reasons why ISO20000 certification is not ITIL V3 certification\" (HTML). http://www.itskeptic.org/node/581 Retrieved on 2009-02-24. 1.^ IBM Global Services (2004). \"IBM and the IT Infrastructure Library\" (PDF). http://www.ibm.com/services/us/igs/pdf/wp-g510-3008-03f-supports-provides-itil- capabilities-solutions.pdf . Retrieved on 2006-05-31. 1.^ IBM Global Services (2003). \"IBM's commitment to ITIL (archived)\" (HTML). http://web.archive.org/web/20070304184624/http://www- 935.ibm.com/services/us/index.wss/detail/its/a1000593?cntxt=a1000429 Retrieved on 2007-03-04. 1.^ Van Schaik, E. A. (1985). A Management System for the Information Business. Englewood Cliffs, NJ, Prentice-Hall, Inc. ISBN 0-13-549965-8 2.^ Van Schaik, E. A. (2006 2nd Ed.). A Management system for the Information Business. Red Swan Publishing. ISBN 1933703032 3.^ Nolan, Richard, 1974, 1982. Managing the Data Resource Function. St. Paul, Minnesota, West Publishing. ISBN 0829900039 (1982 ed.) Copyright © 2008-2009 Ali- 30 4.^ Office of Government Commerce. ITIL Refresh | All rights reserved Mollabagher.com Statement

References . Retrieved February 13, 2006. 1.^ Office of Government Commerce (UK)CCTA and OGC . Retrieved May 5, 2005. 1.^ Office of Government Commerce (2000). Service Support. The Stationery Office. ISBN 0-11- 330015-8. 2.^ Office of Government Commerce (2001). Service Delivery. IT Infrastructure Library. The Stationery Office. ISBN 0-11-330017-4. 3.^ Office of Government Commerce (2002). Planning To Implement Service Management. The Stationery Office. ISBN 0-11-330877-9. 4.^ Cazemier, Jacques A.; Overbeek, Paul L.; Peters, Louk M. (2000). Security Management. The Stationery Office. ISBN 0-11-330014-X. 5.^ Office of Government Commerce (2002). ICT Infrastructure Management. The Stationery Office. ISBN 0-11-330865-5. 6.^ Office of Government Commerce (2005). The Business Perspective. The Stationery Office. ISBN 0-11-330894-9. 7.^ Office of Government Commerce (2002). Application Management. The Stationery Office. ISBN 0-11-330866-3. 8.^ Office of Government Commerce (2005). ITIL Small Scale Implementation. The Stationery Office. ISBN 0-11-330980-5. 9.^ van Bon, J.(Editor) (2002). The guide to IT service management. Addison Wesley. ISBN 0-201- 73792-2. 10.^ Meyer, Dean, 2005. \"Beneath theCopyright © 2008-2009 Ali- Buzz: ITIL\" 31 Mollabagher.com | All rights reserved

References CIO Magazine, March 31, 2005 1.^ van Herwaarden, H. and F. Grift (2002). \"IPW(tm) and the IPW Stadia Model(tm) (IPWSM)\". The guide to IT service management. J. Van Bon. London, Addison-Wesley: 97-115. • http://techrepublic.com.com/2001-6240-0.html Copyright © 2008-2009 Ali- 32 Mollabagher.com | All rights reserved

Configuration Management (Ali Mollabagher.Com)

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