Building ATDAATDA is an assessment in the overall tender cost of work activities from the beginning to completion, i.e. cost of main contract or material, labour and supervision, cost of land, consultancy fees and miscellaneous. ATDA Online is a simple way for Quantity Surveyor to prepare cost analysis from the Summary of Bill of Quantities (Conventional Contract) or Contract Sum Analysis (Design & Build Contract). System users shall be able to fill-in data for all new projects and has flexibility to amend or update the data at any time for the particular project as long as the ATDA has not been approved or certified by the relevant authorities. Data will be saved in the system and the analysis can now be used as a reference for cost planning, etc.