Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 1 3-5 APRIL 2006Mar Blanco...
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Transcript of Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 1 3-5 APRIL 2006Mar Blanco...
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 13-5 APRIL 2006 Mar Blanco Frías
STATISTICAL METADATA MODEL DEVELOPED IN SPAIN:CURRENT AND
FUTURE USE AND APLLICATIONSTopic (ii): Metadata Concepts, Standards, Models and Registries
GENEVA, 3-5 April 2006
Mar Blanco Frías
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 23-5 APRIL 2006 Mar Blanco Frías 2
Obj
ecti
ves
1. To explain the metadata model current status
• Give a general view of the model: functional, management and user points of view
2. To explain the metadata role inside INE
• Information about current applications of the metadata project and the way forward
OBJECTIVES OF THE PRESENTATION
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 33-5 APRIL 2006 Mar Blanco Frías 3
Metadata model description and status1
INDEX
Role of the metadata inside INE2
Functional point of view1.1
1.2
1.3
Management point of view
User point of view
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 43-5 APRIL 2006 Mar Blanco Frías 4
Metadata model description and status1
INDEX
Role of the metadata inside INE2
Functional point of view1.1
1.2
1.3
Management point of view
User point of view
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 53-5 APRIL 2006 Mar Blanco Frías 5
FUNCTIONAL POINT OF VIEW- FIRST PHASE1.1
• Fuctionally speaking the metadata project has been divided in two phases:
The first one concerning Statistical Operations The second one concerning Regulations
• The basic concepts used in the first phase are:1. Statistical Operation: set of activities leading to obtain statistical
results about a specific sector or issue from individually collected data
2. Variable: information about the unit being studied. In most cases, this variables use to correspond to a unique question in the questionnaire
3. Classification: set of classes or categories which fix the values that a variable can get. When talking about an international Regulation we talk about standard classifications
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 63-5 APRIL 2006 Mar Blanco Frías 6
FUNCTIONAL POINT OF VIEW- FIRST PHASE1.1
• The objective of the first phase is to have a repository including all surveys, in a relational Database supported by Oracle . Currently the Database contains the following information:
System element NumberStatistical Operations 102
Survey Questionnaires 253
Variables 8.187
Non-standardised classifications 1.434
• The information is classified in two ways:
Horizontal Organization Vertical Organization
Statistical Operations
QuestionnairesVariables
ThematicClassificationvariables
ThematicClassificationclassifications
Classifications
Standard
No Standard
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 73-5 APRIL 2006 Mar Blanco Frías 7
FUNCTIONAL POINT OF VIEW- FIRST PHASE1.1
• Variables and classifications are classified using 3 levels of detail. The following number of themes are available at each level for variables and classifications:
Thematic classification of Variables
Thematic Classification of Classifications
# First level 28 17
# Second level 181 133
# Third level 445 535
FINAL OBJECTIVE
To achieve a high degree of both internal and international harmonization that allows better comparisons
In the case of variables, the thematic classification allows to compare how the different Units request similar information
In the case of classifications, the thematic classification allows to harmonize by eliminating superflous classifications
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 83-5 APRIL 2006 Mar Blanco Frías 8
FUNCTIONAL POINT OF VIEW- SECOND PHASE1.1
• The second phase of the project is devoted to international Regulations and standardised concepts.The objective in this case is to bear a special attention to those variables included in a Regulation, among all variables.
Using Regulations and CODED as a source of the concepts• To fulfill this objective a second relational Database has been
constructed:
VARIABLES IN STATISTICAL OPERATION
VARIABLES IN REGULATION
CONCEPTS FOR THIS VARIABLESTRANSITION
MATRIX
PHASE 1 PHASE 2
• This database allows to ensure that all variables requested in the Regulation are indeed included in the Statistical Operation
Also to identify the variables included in the Statistical Operations and not requested in the corresponding Regulation and understand why
CLASSIFICATIONS
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 93-5 APRIL 2006 Mar Blanco Frías 9
Metadata model description and status1
INDEX
Role of the metadata inside INE2
Functional point of view1.1
1.2
1.3
Management point of view
User point of view
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 103-5 APRIL 2006 Mar Blanco Frías 10
MANAGEMENT POINT OF VIEW1.2
• The maintenance of the System is carried out by means of a Metadata Management System
This prevents the operator from making mistakes when working directly in the tables
It allows to introduce and modify information in the Database in a easy and friendly way
• Some Windows of the Management System:
SISTEMA DE GESTION
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 113-5 APRIL 2006 Mar Blanco Frías 11
Metadata model description and status1
INDEX
Role of the metadata inside INE2
Functional point of view1.1
1.3
1.2
User point of view
Management point of view
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 123-5 APRIL 2006 Mar Blanco Frías 12
USER POINT OF VIEW1.3
• From a user point of view, it is not usefull to have greats amounts of information stored in tables if you are not able to exploit it as much as possible
The search Engine allows the user to efficiently find different types of information using different search criteria
Available in the Intranet• Different possibilities:1. Thematic Searches: The user gets all the variables (or
classifications) clasified in the selected theme Allows to compare how the different Statistical
Operations request information about the same theme Allows to see relationships variableclasifications
(1:n) and classifications variable(1:n)2. Comparison of Statistical Operations: By means of a metodology to
analyse similarity between variables and classifications in two Statistical Operations
3. Searches in regulations: It allows to generate a report connecting variables in a Statistical Opration with those in the corresponding Regulation
4. Global search: By litheral, theme, global character chain…
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 133-5 APRIL 2006 Mar Blanco Frías 13
USER POINT OF VIEW1.3
• Some Search Engine windows (I):
SISTEMA DE CONSULTAS
Global search
Concept definitionStandard Classifications
search
Thematic search for Variables
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 143-5 APRIL 2006 Mar Blanco Frías 14
USER POINT OF VIEW1.3
• Some Search Engine windows (II):
Search by Statistical Operation
Possibilities:• See the
questionnaire as it is stored in the DB
• See variables in the SO which are requested in the Regulation
• See the associated Regulation
Search by RegulationPossibilities:• See the Regulation as
it is stored in DB• See the variables in
the Regulation with its attributes (internal codes, periodicity…)
• See Variables in the Regulation which are requested in some SO
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 153-5 APRIL 2006 Mar Blanco Frías 15
Metadata model description and status1
INDEX
Role of the metadata inside INE2
Functional point of view1.1
1.3 User point of view
Management point of view1.2
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 163-5 APRIL 2006 Mar Blanco Frías 16
ROLE OF METADATA INSIDE INE2
• Metadata has an important role in quality issues inside INE It is used as a quality indicator in surveys• Currently the metadata project is used in the Eurostat Task Force
on Core Social Variables All information about social surveys is included in the
metadata database => Metadata is a powerfull tool to compare how this surveys request the information and harmonize both internally and at European level
• Metadata is a first step towards a complete documentation database
• Usefull to help to define taxonomies in XBRL metainformation exchange project
• FUTURE WORK:1. Include not only Statistical operations under INE responsability
but also those carried out by other Ministries and Government bodies
2. Link metadata to data it will help to reduce the load to informers in Economic Surveys.
Joint UNECE/Eurostat/OECD work session on statistical metadata (METIS) 173-5 APRIL 2006 Mar Blanco Frías 17
AND THAT’S ALL…. THANK YOU FOR YOUR ATTENTION!