"There are two levels of risk that should be considered namely: Initial Level of Risk [and] Residual Level of Risk." archive.opengroup.org Reference: The Open Group Conference Proceedings, From Architecture to Execution with TOGAF 9 (R.
Weisman) - Risk Management section.

In TOGAF's treatment of risk within architecture governance and ADM Guidelines & Techniques, risk management is seen as a continuous process including several phases. First one classifies potential risk types.
Then one identifies specific risks. After identification comes assessment (evaluating likelihood and impact), monitoring (tracking over time), mitigation (taking actions to reduce the risk), and related response or treatment options to decide what to do with residual risk. That sequence-classification, identification, assessment, monitoring, mitigation, and response-completes the risk management life cycle. It does not stop at evaluation or reporting; it includes active monitoring, control, and reaction to risks over time.

Business Transformation Readiness Assessment is a joint effort between corporate staff lines of business and IT planners to evaluate the readiness of the organization to undergo change. It involves assessing factors such as vision, commitment, capacity, capability, culture, and motivation that may influence the success of a business transformation initiative. Reference: The TOGAF Standard | The Open Group Website, Section
3.3.2 Business Transformation Readiness Assessment.

Business principles business goals, and business drivers provide context for architecture work, by describing the needs and ways of working employed by the enterprise. They define what the enterprise wants to achieve, how it wants to operate, and what factors influence its decisions and actions. Reference: The TOGAF Standard | The Open Group Website, Section 3.2 Preliminary Phase.