Using Scenarios to create a detailed System Specification in Enterprise Architect

Enterprise Architect 16, build 1605.
For more information on Enterprise Architect 16 or to download a copy of a free 30 day trial, please refer to : Enterprise Architect 16.0 Landing Page

Enterprise Architect provides a number of tools for tracing the definition and implementation of a process, from initial requirement to generated code or technical deployment. Some of the tools include the Relationship Matrix, Traceability Window, Relationship Window and Inspector Window, not to mention the creation of a Traceability diagram itself that outlines how to get from a concept and requirement through to code and implementation and back.

For more information, please refer to the Enterprise Architect User Guide topics on Traceability and some of the additional links, tutorials and guide books below: Traceability Tools Traceability Inspector - Details Tools for Traceability in Enterprise Architect

Yes. Enterprise Architect models supports the generation of custom reports.

For more information, please refer to the Enterprise Architect User Guide topic: Custom Documents

A Custom Document is a variant of a Linked Document in which you can create a fully customized report on any set of ad hoc elements, diagrams or packages. Individually or in combination, from anywhere in the model, in any order you choose, and in any format and style you select or design. The granularity of the objects you choose depends entirely on how you want to your document to be populated. A Custom Document represents a range of model elements and their properties, and every time you open the document the content is dynamically refreshed from the model objects you have included and from the template instructions.

For more information, please refer to the Enterprise Architect User Guide topic: Manage Custom Documents

Using navigation cells in Enterprise Architect allows you to link to a diagram of significance to the user on a high-level diagram or home page diagram. This directs users to the areas of model they are interested in or responsible for. You can add several navigation cells to a diagram.

For more information see: Navigation Cells Image Assets Image Library Download

Yes, Enterprise Architect can automatically generated test cases from a Scenario with scenario specification in the structured scenario editor.

For more information, please refer to the Enterprise Architect User Guide topic: Generate Test Cases
For a deep dive, you may consider referring to the webinar :
Enterprise Architect for Business Analysis - Requirements Validation using Test Cases