One common KPI of e-discovery is cost reduction.

Hierarchical database model is the newest database model

With reliable Metadata an organization does not know what data it has, what the data represents and how it moves through the systems, who has access to it, or what it means for the data to be of high quality.

A limitation of the centralized metadata repository approach is it may be less expensive.

Quality Assurance Testing (QA) is used to test functionality against requirements.