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Develop mapping models with IBM InfoSphere Data Architect

Jorge Machado (jorge_machado@de.ibm.com), IT Architect, IBM
Photo of Jorge Machado
Jorge Machado is an IT Architect with IBM Software Group Services in Germany. Having covered various roles within his 10 year history of assignments within IBM, his main focus area now is the planning, design, and development of data warehouse solutions as well as business intelligence strategies for customers in central Europe.
Hermann Voellinger (VGR@de.ibm.com), IT Architect, IBM
Photo of Hermann Voellinger
Hermann Voellinger is an Executive IT Architect at IBM Software Group Services. For the last 12 years, he has been the responsible IT architect for big data warehouse (DWH) projects in Germany. The 10 years before working on DWH projects, Hermann worked in the German Development Lab as the lead developer and architect for Text and Data-Mining solutions and tools. His key skills and main focus areas are currently the architecture of data population processes (ETL), data modeling concepts, and the strategy and architecture of DWH solutions.

Summary:  Designing the mappings for an extract, transform, and load (ETL) process is a critical step in a data warehouse project. Mappings must be easy to modify, capable of version control, easily reported, and easily exported to other formats. This tutorial illustrates how to develop a complete source-to-target mapping model using InfoSphere™ Data Architect. You will also learn about the reporting functions that InfoSphere Data Architect provides.

Date:  27 Jan 2011
Level:  Intermediate
PDF:  A4 and Letter (1777 KB | 43 pages)Get Adobe® Reader®

Activity:  16535 views
Comments:  

Before you start

Introduction

The goal of this tutorial is to introduce a method for developing mapping models for data warehouse (DWH) projects using the functionality available in InfoSphere Data Architect (IDA), Version 7.5.2. The design of the mappings for the extract, transform, and load (ETL) process is an absolutely critical part of each data warehouse project. This design of mappings should be stored in a format that fulfills several requirements, including the following:

  • The mapping can easily be changed.
  • Changes can be versioned.
  • It is easy to report the mappings.
  • It can be exported to other formats.

You will learn in this tutorial how these goals can be reached with IDA. The tutorial builds describes all the necessary steps to build your first mapping model and to create a report for this model. The high-level steps are:

  1. Create a project in IDA
  2. Create the source data model (using the DB2 SAMPLE database)
  3. Create the target data model
  4. Create mappings between source and target tables
  5. Analyze your model using the reporting functions

This tutorial describes each of these five steps in detail. At the end, you will have your first meaningful mapping report in PDF style by using the inherited functionality of the IDA tool.

Product overview and prerequisites

The IBM InfoSphere Data Architect (previously called Rational Data Architect) is an enterprise data modeling and integration design tool that provides a collaborative data design solution that you can use to discover, model, relate, and standardize diverse and distributed data assets.

IDA is based on an open-standard Eclipse integration.

In order to work through this tutorial you need to install the following:

  • InfoSphere Data Architect, Version 7.5.2
  • IBM DB2 9.7 Enterprise Server Edition with its sample database
  • An instance of IBM DB2 Enterprise Edition and the standard sample database installed and accessible on the same computer

See Resources for links to trial versions of both DB2 and IDA.

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