To produce a conceptual framework useful for the creation of a database will proceed in stages. You go from aconceptual stage, for a physical and a logical step. Each stage has the task of producing a pattern. 
The activities to be performed are:

•  feasibility study
•  collection and analysis requirements
•  design
•  implementation 
•  validation and test
•  prototyping 
•  operation

Normally a bottom-up strategy in the sense that it decomposes the project activities, resolve problems andadopt criteria for selection of references refer to models orpatterns that have been resolved. The strategies used to solve problems must be comprehensive, accurate andeasy to use.