This document outlines an implementation methodology for large Odoo projects with the goals of delivering expected benefits on time and within budget by keeping projects simple. It recommends conducting a business needs analysis, building a full-featured prototype, importing data and specific development, validation and training, deployment, and second deployment. Key aspects include prioritizing the customer's business needs over custom specifications, avoiding unnecessary custom development, and having experienced project managers make configuration decisions. It provides guidance on setting customer expectations, the sales process, and negotiation approach.