A grid consists of a distinct set of alignment- based relationships that act as guides for distributing elements across a format. Every grid contains the same basic parts, no matter how complex the grid becomes. Each part fulfills a specific function; the parts can be combines as needed or omitted from the overall structure at the designers discretion, depending on how they interpret the informational requirement of the material.
Working with a grid depends on two phases of development. First phase the designers attempts to assess the informational characteristics and the production requirements of the content. The second phase consist of laying out the material according to the guidelines established by the grid.
Every design problem is different and requires a grid structure that addresses its particular elements.