First, give conclusions that can be used for decision-making
Each category of data describes the sole source, mandatory fields, code rules, duplicate processing, mapping relationships and approval responsibilities.
What conditions need to be identified before judgement is made?
The same question may have different answers under different business, data and project phases. It is suggested that the following conditions be checked and that the common findings on the web be incorporated into their own projects.
Suggested order of advance
First, we'll be clear about the target and the border.
Establish a list of data subjects and persons responsible.
Validation Key Dependence
Sample assessment of duplication, deficiencies, errors and mapping workload.
Development of assessable outcomes
At least two rounds of simulation migration and operational reconciliations are performed.
Make sure you decide the next step with the real results.
Establish freezing, switching, retreating and differential treatment programmes.
How do you understand it in the actual business?
The enterprise plans to move five-year orders, but what is really needed online is to process the opening customer, commodities, inventory, receivables and unfinished business. Early transactions can be entered into a read-only archive, reducing the risk of migration and retaining search evidence.
The easiest pit to step on.
Handing over all data cleansing to the implementer without any business judgement.
Compare only the number of entries, not the amount and state
The first complete migration before officially online
How should we end up receiving and confirming?
The migration report should record sources, targets, conversion rules, number of successful failures and differences; the operator will also need to sample the code, quantity, amount, status and historical queries.
When preparing to communicate with suppliers or internal teams, it is recommended that current processes, representative samples, existing systems, planning time and budget levels be brought. First, the unknown items are clearly marked, and then the decision is made to use diagnostics, PoC, fixed-range projects or ongoing research and development, which is usually more reliable than a direct demand for a price and duration without borders.