What is Data Migration?

Data Migration for Beginners

Matt A. Maxx
Data migration is the transferring of data sources or files between differing storage areas, computer systems, or user formats. A program will normally perform the data migration so that this long and tedious process of transfer does not require precious human resources. Data migration is often used when two organizations merge with different styles of source files that must be meshed.

What is the data migration process?

Processes for data migration vary as necessary, but the common process includes mapping the older data sources or files into a format that the newer system can load. After the information has been transferred to the newer system, a data verification process takes place to ensure a complete transfer and data compatibility.

At times during the verification process both systems will be run simultaneously to determine accurate and complete translations that do not include any data loss.

What services will my data migration company provide?

Data migration is broken down into six phases:

~ Assess: The data migration company works with the host computers in order to understand both data type specifics and languages before trying to mesh them with a data migration process.

~ Plan: A plan will be formed on the best way to map the older information for the newer system to load.

~ Extract: Extraction is the act of transferring the initial data from the older system and placing it into the newer system.

~ Cleanse: After the initial transfer has taken place, a program or a person will go through the information to remove all unwanted data or outdated information. This step of the data migration process requires the date migration company and host company to be working together to ensure data being removed or 'cleansed' is appropriate.

~ Load: The cleansed data files will be reloaded into the newer system and a test will be performed to ensure further data compatibilities.

~ Verify: At the verification process the new system will be checked by both the data migration company and the host company to eliminate any remaining problems.

What are common data migration problems?

Data migration is the act of rewriting old information into a newer technology format; each time that technology changes, those using this system must rewrite all data to meet the newer requirements. Digital data eliminates this process and many firms are now using digital storage systems for important data information. Common problems found in data migrations include lost data, data that can not be upgraded into newer technology, and programmer mistakes.

Published by Matt A. Maxx

Matt is a full-time freelance writer for hire, specializing in advanced SEO techniques. Yahoo! Associated Content mentions include: 2008 Top 100 Writers, 2009 Top 1000 Writers, 2010 Top 1000 Writers and vari...  View profile

  • Data migration is needed when two different computerized systems must mesh.
  • Data migration is the art of rewriting older data into newer formats.
  • Data migration is rapidly being replaced by digital information systems.
Data migration is composed of six parts: Assess, Plan, Extract, Cleanse, Load, and Verify processes.

11 Comments

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  • carol gibson6/10/2009

    Very informative article about data migration. Does it come back in the spring? (just kidding)

  • B.A. Rogers3/23/2009

    This is a very helpful article.

  • Dan Reveal3/16/2009

    So interesting and well written. Thanks.

  • Marie Lowe1/25/2009

    informative

  • SAIKAT KUMAR DUTTA1/18/2009

    very interesting...nicely done...

  • Jennifer Wagner1/17/2009

    I am so dumb when it comes to this stuff. You should teach a class!

  • Bat Canary1/14/2009

    Very informative, and I like how you explained things so clearly, because I am not particularly technological, me.

  • Kay Whittenhauer1/14/2009

    Good job explaining this! Even I understood it! :)

  • 3lilangels1/13/2009

    wow cool never knew this!

  • Mavyn1/13/2009

    You know, just yesterday I was asking myself this very question...

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