Practical Data Migration

STEP 1.1: ANALYSE LEGACY DATA STORES

For each Legacy Data Store prepare a Legacy Data Store definition form. Traditional business analysis skills are required for this task:

• examining documentation, data base schemas, file formats;

• documenting business usage;

• interviewing Business Domain Experts and Data Store Owners.

In addition, there are the following new requirements:

• identifying Data Stakeholders;

• generating initial data quality assessments;

• creating the questions you will take into Step 1.3 (create first-cut System Retirement Policies).

You will find that as this task progresses your understanding of the legacy Key Business Data Areas increases, so this task feeds into Step 1.2 (update Key Business Data Area models). Similarly, updates elsewhere ...