Cube Design Using SQL Server Analysis Services

Hi, We need to develop a cube design - using SQL Analysis Services. The business logic is documented and ready to be discussed upon interest in project. This is a small project where the business logic within an existing SQL Stored Procedure needs to be converted into a cube design to provide the same output. Key objective that needs to be met using cube design is: (a) accuracy of data retreival and (b) fast data retreival. The source data is in the database and table design and logics are well documented. It is expected to be a short / quick project. Thanks