First you need to find out what data will be involved and how many users will be using the solution. Once you know the amounts of data and how many users will need to access it you can make an estimation of the required hardware resources and the number of licenses you need. If you need details then you need to hire an experienced Qlikview consultant that can gather these requirements on-site by interviewing the relevant people and determining the scope of the project and the resources necessary to realize the project.