Page 6 - IOTA Good Practice Guide

Problem:

A common pitfall in many organisations
nowadays is that a lot of focus is put on
creating innovative information products,
and less on requirements for putting these
in production. The strong focus on
innovative information products is also
caused by a lack of insight on how to create
a good method of data preparation.

Solution:

The second model that has been developed by the Netherlands Tax and Customs Administration’s
own data and analytics department is its own layered data architecture approach that has been
instrumental in their success. In this method, the data is prepared in layers. In each layer, we build on
the previous layer and we give each layer a colour for functional purposes. In the first layer that we
build, our "blue layer", we standardize, cleanse and validate the data. In this layer, we also apply
technical rules. In the next layer, our "purple layer", we build on the blue layer and enrich our data by
creating business rules.

This method of data preparation helped the organisation to focus on creating insights that add value,
to have a strong focus on data quality (“blue”) and business validation (“purple”), a clear data lineage
and a common language and shared approach.

The DAMA framework
Level: basic
Contact person: Bastiaan Veldkamp, The Netherlands

Problem:

The Netherlands Tax and Customs Administration (NTCA)
has had quite some challenges when it comes to assessing
their data management function.

Solution:

Therefore, the DAMA-DMBOK framework has helped
NTCA to address this problem. This is a widely-accepted
framework for data management that standardises
terminology, processes, roles and deliverables. It covers a
full range of topics including data development, data
architecture, data quality, data security, master data, and
meta data management. This model helped our
organization to assess our Data Management function and to suggest and guide initiatives to improve
data management.

Standard audit file for tax (SAF-T)
Level: intermediate
Contact person: Ricardo Santos Vítor, Portugal

4