TRD for Raman Technology Startup

We are a startup using Raman laser technology for dental treatment and rapid scanning. For our "Big Data Analytics" feature we need to have a TRD (Technical Requirement Document) that describes the technical point of view of this feature. So if you have any experience in Big Data Analytics and worked on data topics, openEHR standard, Artificial Neural Networks and "Time Series Models" then you would be able to write this document for us.