CONCORDJava (CONtrollo e CORrezione dei Dati version with Java interface)

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The contents related to CONCORDJava are shown in the following sections:


CONCORDJava is an open source software for editing and imputing data. The application integrates software previously developed and used in Istat: SCIA, RIDA and GRANADA.

The application, currently released in beta edition for the part about the deterministic corrections, is available for download in Italian and English.

The different methods in the software are implemented in separate modules:

  • SCIA (Sistema di Controllo e Imputazione Automatici):
    Editing and imputation of qualitative variables by applying the Fellegi-Holt methodology. First the system identifies the minimum number of fields to impute for each failed record and then it imputes ensuring the imputed record will pass all edits.
  • RIDA (Ricostruzione dell’Informazione con Donazione Automatica):
    It performs imputation of both categorical and continuous variables through donor of minimum distance. Preliminary operations are:

    • the classification of units in passed and failed;
    • their recording into two separate files;
    • the identification of values to be imputed using a preset character (error character).
  • GRANADA (Gestione delle Regole per l’ANAlisi dei DAti):
    It imputes qualitative and quantitative variables according to the deterministic approach, in other words applying the rules of the type IF [error condition] THEN [corrective action]. Using this module you can also check data according to edits which admit logical and arithmetic operators (and therefore valid for qualitative and quantitative variables).


Preparatory to the various steps is the phase of definition of the variables, i.e. of the fields of the record to be checked, and the edits.


Status: validated
Author: Istat
Licence: EUPL-1.1
GSBPM code: 5.3 Review and validate
5.4 Edit and impute
Programming language: Fortran, Java
Language of the GUI: EN, IT
Keywords: localization, imputation, nearest neighbour
donor, Fellegi-Holt
Contact: name: Maria Teresa Buglielli

Software and documentation

Minimum size hardware

256 Mb RAM

30 Mb on C:/


Java 2 Runtime Environment (version ≥ 6.0)


Copyright 2014 Istat

Licensed under the European Union Public Licence (EUPL), version 1.1 or subsequent. You may not use this work except in compliance with the Licence. You may obtain a copy of the Licence at: Unless required by applicable law or agreed to in writing, software distributed under the Licence is distributed on an “AS IS” basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Licence for the specific language governing permissions and limitations under the Licence.


Istat assumes no responsibility for the results arising from use of the instrument that is inconsistent with the methodological guidance contained in the documentation available.


Release date: 10/06/2014

CONCORDJAVA version 2.2


User manual – CONCORDJava v. 2.2

Last edit: 29 November 2021