- Collect major IT-related functions (approx. 30-50) to be carried out at an IT organisation; potential sources COBIT, ITIL, PMBOK, PRINCE2, HERMES, etc.
- Draw a matrix of mutual relationships between those functions or group of functions (about 10)
- The relationships may be like “synergy” (functions to be carried-out rather together)
- The relationship may be like “prohibition” (functions to be carried-out by different units because of SoD principle, good practices, etc.)
- Each particular relationship has to be justified
- Find clusters in that matrix
Example of the relationship matrix:
Potential functional groups
- GOVERN – administrative coordination as the whole -- set and maintain internal policies, controls and processes
- ARCHitect – technical coordination – define structural changes (of core capabilities and services) in response to business and technologies changes
- Make SAFE (added to be conceptually complete) – define policies concerning the confidentiality, integrity and availability of information services
- Supervise building of core services and capabilities – project management (PM) Supervise operating of core services and capabilities – operations monitoring (OM)
- BUILD core capabilities and services: application services, information services and infrastructure services
- OPERate core capabilities and services – integration, pilotage and service desk
- EVALuate (as an independent control) capabilities
- INTERNal support capabilities
Define YOUR rules for decompositionDepending on your current needs and concerns, define two group of rules.
- P1 Separate doing and supervising/controlling – SoD
- P2 Separate architecture/design and implementation – SoD, specialisation and quality at entry
- P3 Separate implementation and operation – SoD, specialisation and quality at entry
- P4 Policy vs applying it – legislation vs executive separation
- P5 Specialisation
- S1 Close work (e.g. there is a primary / single client for services of that function)
- S2 Architecture role to guide (an architect is a person who translates a customer’s requirements into a viable plan and guides others in its execution)
- S3 Synergy between technical and administrative activities (how you do something may be more important what you do)
Example of relationship matrix
Arrangement of functions into smaller units (divisions)BUILD-related functions are decomposed into three (process-centric, knowledge and infrastructure) due to specialisation.
So, the structure should be as shown below.