According to the TOGAF Business Architecture Guide, value streams play a key role in providing a structured framework that supports more effective analysis of business requirements, case management, and solution design. Value streams offer a high-level, customer-centric view of how value flows through the organization, which helps in aligning business requirements and ensuring solutions are well-targeted to meet those requirements.

Role of Value Streams in Business Requirements AnalysisValue streams help stakeholders understand the key stages and outcomes that deliver value to customers or stakeholders. This framework facilitates a clear alignment between business requirements and the value outcomes each requirement supports. By mapping requirements to specific value stream stages, architects can ensure that requirements are directly tied to business outcomes.

Supporting Case ManagementValue streams also provide a structured approach for managing various business cases. By identifying key stages in the value creation process, value streams help in evaluating and prioritizing cases based on their impact on value delivery. This structured approach enhances case management by focusing on value, efficiency, and alignment with organizational goals.

Enhancing Solution DesignSolution design is more effective when informed by a value stream view, as it allows architects to focus on delivering value at each stage of the process. By understanding the flow of value, architects and solution designers can ensure that technology, processes, and capabilities are aligned to support the most critical aspects of the value stream. This alignment optimizes solution design to meet specific business needs more effectively.

Why Option B is CorrectThe TOGAF Business Architecture Guide explicitly states that value streams provide a framework for business requirements analysis, case management, and solution design. This insight indicates that value streams are instrumental in ensuring that these elements are aligned with how value is delivered within the organization.

Why Other Options are Incorrect:

Option A (Identify value, duplication, and redundancy):While value streams can provide insights into operational efficiency, they are not primarily focused on identifying duplication and redundancy across the enterprise. Instead, this aspect is typically covered by detailed process mapping or capability assessments.

Option C (Highlighting value of individual work packages):Value streams do not emphasize individual work packages but rather focus on the overall flow of value. Work packages are more granular and usually defined during implementation and migration planning.

Option D (Ensuring investment prioritization):Investment prioritization is more closely associated with portfolio management rather than value stream mapping. Although value streams inform decision-making, they do not directly handle funding prioritization.

Conclusion:

The correct answer is B because value streams provide a framework that directly supports business requirements analysis, case management, and solution design, as outlined in the TOGAF Business Architecture Guide.