How do you cope with Change?

Transcription

1 How do you cope with Change? Relationship between Change & Configuration Management BCS Bristol 21st November 2007 John Metcalfe. / BCS-CMSG ITIL is a Registered Trade Mark, and Registered Community Trade Mark of the Office of Government Commerce, and is Registered in the U.S. Patent and Trademark Office. Slide 1

2 BCS CMSG Configuration Management Specialist Group: A forum for developing and promoting Configuration Management, as a discrete management process. The Group facilitates the free and open exchange of CCRM ideas, experience and best practice at regular workshops and special events. Aims & Objectives Includes: CCRM professional development scheme and influencing training and education within the field to achieve professional standards; Influence the production and content of National, European and International Standards related to Configuration, Change and Release Management; Promote the benefit of Configuration, Change and Release Management within the industry at large; Guide the makers of software tools to support the work of Configuration, Change and Release Management. Slide 2

3 Approach What do you expect? Set the Scope Simulation of Change The CCRM Thing Meeting your expectations? Q&A References Remember 5th December Slide 3

4 What Do You Expect? What are you involved in? projects change configurations other.. Why are you here? Did you bring any. questions? preconceived views about configuration management? Slide 4

5 Let s Play! Simulation of Change I am the business user you are my outsourced IS departments you maintain my systems You have to implement 3 changes You have 15 minutes Remember Change is constant Slide 5

6 Change Request 1 QA Manager has identified that large coding blocks increase risk. Change the 8 peg yellow blocks with 4 peg yellow blocks Slide 6

7 Change Request 2 Legacy code replacement Replace just the white areas above the yellow blocks with yellow blocks OS Functionality update Replace the green 4 peg strip with a red 4 peg strip GUI Update Replace the red 4 peg strip with a green 4 peg strip Slide 7

8 Change Request 3 Middleware update Replace the two 4 peg white blocks with matching blue blocks Slide 8

9 Emergency Change EF001 Major loss of business of business service Backout the legacy code change. Slide 9

10 Change Management We can manage change Process most organisations have defined input requirement defined deliverables changed system Series of known steps to covert input to deliverables Appropriate levels of reviews, and tests But what about those items we were changing? Do we know the impact of changing one or more items How do we build the new solution? which versions of other (unchanged) items are needed? How do we put the new solution into the live environment Slide 10

11 Managing the items Configuration Management Defines the what calls them Configuration Items Ensures correct labelling & versioning Defines the relationships Logical hierarchical structure Manages concurrency, branching, merging. Keeps them safe In a secure library Protects the library integrity Authorised access Updated / replaced by certified CIs Audits the library and associated processes Slide 11

12 Managing the Implementation Release Management Has own environment for testing the build process Only accepts certified items Knows the configuration of environments (i.e. what did we put where?) Test and executes the implementation of new solutions Slide 12

13 Configuration Items Why are they important? cost money contain intellectual value may belong to a 3rd Party Licenses? If it breaks? potential loss of business capability demands maintenance CIs are ASSETS Slide 13

14 Configuration Items Slide 14

15 Configuration Items Slide 15

16 Managed CIs = Good Service = + Slide 16

17 Defining Business Services Functionality Tasks to be performed by one more business users (e.g. sales order processing) Maintenance & Support Tools Processes Rate of change 3rd Party? Slide 17

18 Defining Business Services (2) Availability (24x7x365?) Continuity Security Security policies Standards of Use Technology Technology policies, infrastructure dependencies Monitoring Performance of constituent CIs Service Level Agreements Operational Level Agreements Slide 18

19 Putting IT in the business context ITIL V3 ITIL is a Registered Trade Mark, and Registered Community Trade Mark of the Office of Government Commerce, and is Registered in the U.S. Patent and Trademark Office. Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 19

20 Service Lifecycle Stages Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 20

21 Service Lifecycle Feedbacks Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 21

22 Service Model Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 22

23 Scope of Service Transition Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 23

24 Change Mgt & Config. Mgt Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 24

25 Config. Mgt System Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 25

26 Leveraging the CMDB Crown copyright reproduced with the permission of the controller of Her Majesty's Stationery Office (HMSO) Slide 26

27 Service Knowledge Mgt System Slide 27

28 CCRM Across Standards A very common theme Slide 28

29 Initial Comparisons CCRM Activities CM Planning CI Identification Control Status Accounting Audit CMDB Rel Mgt Process Repository ITIL V3 ISO IT (Service Service Transition) Management ISO Softwar Asset Management a 4.4.4; ; 4.5; ; b ISO IT Sofware Life Cycle Processes SECMM BP BP BP BP BP CMMI for Development COBIT v4 v1.2 DS9 SP1.1 AI3; DS9 SP1.2; SP2.1 AI6, SP3.1 DS9 SP3.2 DS9 SP1.2, SP3.1 DS9 AI7; SP1: SP2; SP3 DS9 SP1.2; GP2.6 DS9 Slide 29

30 Remember Dec 5th Slide 30

31 Thank you! Any Questions? Slide 31

32 References John Metcalfe. 24, Woodcroft Rd St Annes Bristol BS4 4QW +44 (0) (0) Slide 32