In SAP implementation roadmaps, the navigation structure of the roadmap helps consultants and project teams understand the sequence and content of implementation activities. The navigation structure of SAP roadmaps consists of which of the following levels? A. Work packages B. Tasks C. Accelerators D. Phases E. Activities.

Introduction / Context:
SAP provides implementation roadmaps that guide projects through a structured set of phases and activities. These roadmaps are organised in a hierarchical navigation structure so that project teams can drill down from high level phases to detailed tasks and supporting documents. Understanding this structure is important for consultants who use roadmaps as the backbone of their project plans. This question asks which elements form part of that navigation structure.

Given Data / Assumptions:
- The elements listed are work packages, tasks, accelerators, phases and activities.
- Roadmaps are used in SAP projects to structure methodology and deliverables.
- Accelerators such as templates and checklists are linked to tasks and activities.
- The question focuses on the navigation structure, not only conceptual content.

Concept / Approach:
SAP implementation roadmaps are typically structured in several levels. At the top level are phases such as project preparation, business blueprint, realisation, final preparation and go live and support. Within phases, work packages group related activities. Activities are then broken down into tasks, which describe specific pieces of work. Accelerators, such as sample documents and configuration guides, are attached to activities and tasks to support execution. When navigating the roadmap, users see phases, work packages, activities and tasks, and can open accelerators from these nodes. Therefore, all listed elements are part of the navigation structure in practice.

Step-by-Step Solution:
Step 1: Recall the hierarchical levels from phases down to tasks in an SAP roadmap. Step 2: Recognise that work packages and activities are intermediate grouping levels between phases and tasks. Step 3: Remember that accelerators are linked to these structure elements and are accessible through the navigation tree. Step 4: Observe that all five listed elements appear as nodes or attachments within the roadmap navigation. Step 5: Select the option that states that all the listed elements form part of the roadmap navigation structure.
Verification / Alternative check:
You can verify this by thinking about how a consultant would actually click through the roadmap in SAP Solution Manager or in SAP documentation. They first choose a phase, then a work package, then an activity, then a task. At each level they can access accelerators such as presentations, guides and templates. Since all of these are directly accessed from the navigation tree, they are all part of the practical navigation structure.

Why Other Options Are Wrong:
Options that exclude accelerators ignore the fact that accelerators are linked within the navigation hierarchy. Options that include only phases and work packages or only phases, activities and accelerators provide an incomplete view of the structure and would not allow a full drill down from high level to detailed tasks. Therefore, any option that omits at least one of the listed levels is not a complete description of the roadmap navigation structure.

Common Pitfalls:
A frequent mistake is to assume that accelerators are not part of the structure because they are documents rather than structural nodes. However, in practice they are accessed through the structure and are considered part of the roadmap navigation. Another pitfall is to remember only the high level phases and overlook the intermediate grouping levels, which are important for planning and reporting in large projects.

Final Answer:
The navigation structure of SAP implementation roadmaps consists of all the listed levels, so all of A, B, C, D and E are part of the navigation structure of SAP implementation roadmaps.