Job Management System

I require a Job Management System written with the following specifications: The application should be networkable with securities and user rights. Web based is also acceptable. A second module for updates to be done by tablet will also be a great add on separate costing. This should be for an android tablet. This should not be in the initial cost, but as an add on cost. The Job Card System will also work as a mini project management system. This will record various types of jobs as follows: 1. Service / Maintenance Calls 2. Installations of Equipment 3. Project Installations Please see attached documents. More details will be provided if required. Please ensure that you include a realistic cost, as well as a realistic project time line.