A data warehouse is a copy of transaction data specifically structured for query and analysis. Metadata describes the data in the warehouse and aims to provide a table of contents to the stored information. Companies that have built warehouses believe that metadata are the most important component of the warehouse.
It is effective in controlling costs and delivery time lines by ensuring that each segment of the project is divided into small controllable time frames.Timebox management is very suitable for prototyping and rapid application development (RAD). Timebox management does not eliminate the need for a quality process.
Functionality is the set of attributes that bears on the existence of a set of functions and their specified properties . The functionality of a system represents the tasks, operations and purpose of the system in achieving its objective (i.e., supporting a business requirement).