Business
The ILEA maturity ladder, applied to the Business domain. Level 4 is the desired state described on the Business domain page.[1]
| Level | What you see in the organization |
|---|---|
| 1. Ad hoc | Processes are not documented: they live in people’s memory. If someone is absent, the process stops or changes. There are no indicators.[1] |
| 2. Managed | Each area has its processes documented and measured with indicators, but each defines them on its own, and handoffs between areas are manual.[1] |
| 3. Integrated | Processes are standardized and connected end to end with the systems and data they use; information is not re-keyed between areas.[1][2] |
| 4. Optimized | Processes have been redesigned with a Lean approach and their repetitive tasks are automated; the purpose of each job stays with people, and value is measured in business terms.[2][3][4][5] |
Example: invoicing (by the author). Ad hoc (nobody has it written down) → Managed (documented and with an indicator) → Integrated (connected to the ERP and the bank, with no re-keying) → Optimized (simplified with a Lean approach and automated).
The level is measured on the scope being assessed: a process can be “Optimized” even if its department is still “Managed.”[1][6]
References
- CMMI Institute. CMMI Levels of Capability and Performance. https://cmmiinstitute.com/learning/appraisals/levels
- Peschard, M. (2026). Intelligent & Lean Enterprise Architecture (ILEA), v1.21, §9.1–§9.2 (Business Domain). INDAUTOR Reg. 03-2026-020309540400-01. https://ilea.works/en/
- Peschard, M. (2026). IDT, v1.3, §13–§15 (Lean Process Redesign, Intelligent Automation, and Governed Digital Agents).
- Peschard, M. (2026). IDT, v1.3, §15.4 (Human + AI Operating Model).
- Peschard, M. (2026). IDT, v1.3, §12 (Strategic Direction of the Operating Model; Target Operating Model, MOO-IDT).
- IBM Rational. (2008). CMMI the Rational Way [presentation transcript]. https://public.dhe.ibm.com/software/info/television/swtv/Rational_Software/demos/cmmi/CMMItheRationalWay_Transcript.pdf