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 is a concept in current IT world that is used for moving/ working with typically high volume of Data. Extraction Transformation and Loading is a basic concept, used for a variety of purposes like data warehousing. integrating data from heterogeneous sources, populating/ maintaining application back- ends etc. SSIS on the other hand is a tool, a product that is used to perform ETL. SSIS is one of the many ETL tools out there along with Informatica, ab-initio, datastage, ODI etc. Written Dec 30, 2015 Â· View Upvotes.