Blood counting machines aspirate a very small amount of the specimen through narrow tubing followed by an aperture and a laser flow cell. Laser eye sensors count the number of cells passing through the aperature, and can identify them; this is flow cytometry.
In computing, Extract, Transform and Load (ETL) refers to a process in database usage and especially in data warehousing that performs: Data extraction â extracts data from homogeneous or heterogeneous data sources.
ETL tools List of the most popular ETL tools: Informatica - Power Center; IBM - Websphere DataStage(Formerly known as Ascential DataStage) SAP - BusinessObjects Data Integrator; IBM - Cognos Data Manager (Formerly known as Cognos DecisionStream) Microsoft - SQL Server Integration Services; Oracle - Data Integrator (Formerly known as Sunopsis Data Conductor) SAS - Data Integration Studio; Oracle - Warehouse Builder; AB Initio; Information Builders - Data Migrator; Pentaho - Pentaho Data Integration