1

Implementing DDIEditor in the Danish Data Archive -

Demonstration and gained experience

Part of session: Recent Developments in the DDI Implementation Landscape III

Nanna Floor Clausen, Danish Data Archive

2

Overview

• A short historical background

• Software used in development of editor

• Presentation of editor

• Implementation and users – so far

• Final implementation – what is missing?

3

Historical background

• Definition of DDI3

• Need for tools to make it useable

• Establishment of (informal) tools group

• Tools group lacked active support

• Today institutions develop their own tools

4

Software in DDA editor

• Java

• Eclipse Rich Client Platform

• Oracle Berkeley DB XML

• Database environment

5

Presentation of editor

• Workflow:– Creation of study information stored in

study database– Production of study description– Documentation in SPSS– Questionnaire written using wiki mark up

6

• Workflow continued:– Import into editor– Editor used for control of import :

corrections etc.– Output to DDI– Files stored in database

7

Editor

• Installable

• Flexible

• Extendable

• Many perspectives of variables and questions

8

9

10

11

12

13

14

15

16

17

18

19

Implementation –so far

• Officially implemented March 2011

• Users heavily involved from November 2010

• Regular release ’parties’

• JTrack used for bug messages

• Users produce the help documentation

20

Final implementation – when?

• What is still missing:– Import of filters – Import of multiple question items– Proof reader tool

• Expected to be completed next year

21

Experiences

• DDI is a complex structure

• A long period before our users got really involved

• Original design not changed