Implementation efforts refer to the time that was needed to realise the implementation.
- Minimum: less than 1/2 day
- Small: within a day
- Medium: within a week
- Needed external help: Expert needed to make the implementation
The payback period describes the time needed to achieve a return on investment.
- Immediate: 0 - 3 months
- Short-term: 3 months - 1 year
- Medium-term: 1 year - 3 years
- Long-term: over 3 years