Web Application Software Design Document

I need a professional to create a comprehensive Software Design Document (SDD) for a web application. This document will be crucial for guiding the development process and ensuring all requirements and specifications are clearly laid out.

Ideal Skills and Experience:
- Proficient in creating Software Design Documents
- Experience with web application design
- Strong understanding of software development processes
- Excellent written communication skills
- Familiarity with software design standards and best practices

The web application will primarily function as a report. The web application will generate technical writing reports. Include user interaction flow in the SDD.