To create a web based solution, you need a web programmer. ie. someone familiar with java (or some other web language), web design, security, database, etc. You'll likely need another developer to schedule transfers to and from Adagio. Even though I developed the Dakota website, I'm not your guy for this project. My forte is with iPads, iPhones and Adagio. As Doug said, the costs will be significant. I'd recommend a discussion with the client regarding their expectations and budget.