Features outlined in the product book are worked out in precise detail in the functional specifications manual. This is where every step in the development process is clearly defined. Every functional specification manual from Lichtvision lists and explains each product function and shows how it will be realized - including every control and required seal of approval. Additionally, this manual enables an accurate estimate of the investment needed for product development. Including sub-steps, hardware and follow-up costs for certification, eligibility and communication requirements.

The functional specifications manual is the project management Bible. It contains a time line with defined phases, steps and deadlines. This manual is a roadmap charting a product's course on the road to market. It is flexible, prompt and results oriented - even if details and goals change or must be revised during the development process.