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This presentation gives an overview of the main rules and exceptions regarding confidentiality of data obtained for statistical purposes in Sweden. It highlights the importance of confidentiality, legal contracts, and limitations to access. The MONA server-based design is introduced as a secure and user-friendly system for distributing microdata. The dissemination of microdata through an online access system is discussed, along with the components, applications, and security features of the system. The presentation also covers the roles, support, and statistics of the Microdata Access Unit.
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Presentation Genéva november 2005 Claus-Göran Hjelm Statistics Sweden
Confidentiality in Sweden – main rule • Data obtained for statistical purposes are confidential • Access may be granted in forms which do not allow direct or indirect identification of persons or of other data subjects like enterprises
Confidentiality - exeption • Confidential data may be released to a third party for the purpose of statistical surveys and research.
Confidentiality • The obligation of confidentiality will also – according to Swedish law or by imposition of a duty of non-disclosure – apply to the recipient of the data.
Legal contracts • Limitations to the access by specifying: • People • Project • Variables • Period
Background to MONA • Statistics Sweden has distributed microdata to research institutions in Sweden for many years by CD-ROM and other medias • Today there are new needs to distribute microdata – primary larger volumes • Control over distributed data
Main Goals • Data stays at Statistics Sweden • User friendly system • Secure system • Data timeliness • Users don’t need their own infrastructure • Combine researchers data with Statistics Sweden data
MONA Serverbased design - Microsoft Terminal Services / Windows 2003 - User have their own desktops - Only screen updates are transferred - No cut and paste between sessions - Email for result files Security - SSL tunnel - HTTPS://mikrodata.scb.se - RSA Secure ID - Domain logon and reauthentication with security token Applications - SAS, SPSS, Microsoft Office, SQL Query Analyzer, Super Cross, STATA och GAUSS.
Dissemination - Access to microdata • System for on-line access to microdata in first phase of operation/production. • Researchers, analysts • Features • Data stays at Statistics Sweden • Results can be sent via e-mail • Secure system • Two factor authentication (password and hardware authenticator/token) • SSL/VPN • RSA Server • Active Directory / Domain Logon • Group policies • SQL-server views
Access to microdata – System components and applications • System components • Windows 2003 Standard Edition • Microsoft Terminal Services • Remote Desktop • Microsoft SQL Server • Applications • SAS, SPSS, STATA, GAUSS • Microsoft Query Analyzer (SQL Server) • SuperCross for tabulation • Excel and Word • Mail client
Microdata domain Reverse proxy
Microdata access - Roles Users Subject matter discussions Support Microdata Access Unit Users, Data Subject Matter Dep. Systems management, Help Desk Data center
User statistics • Started vinter 2005 at 0 users • During autumn 2005 the number of users are expected to increase to approx. 120-150 • 2006 – many…
Thank You claus-goran.hjelm@scb.se