REPUBLIC OF CROATIA Central Bureau of Statistics INTEGRATED META DATABASE AS A BASIS FOR DEVELOPMENT Zdenko MilonjaGeneva, 17 – 19 May 2004

Project goals Higher productivity in development Higher productivity in development Stability in the database structure Stability in the database structure Planning features Planning features Metadata collected once and used everywhere Metadata collected once and used everywhere Integrated approach Integrated approach

Higher productivity in development There are many ways to increase the productivity but there is a very important question for the IT development There are many ways to increase the productivity but there is a very important question for the IT development If we have 200 surveys how many programs for proccesing we need? If we have 200 surveys how many programs for proccesing we need? a)two hundred b)one c)any number between those two

Validity rules "Technical" metadata has a field has a row consists of has SurveyField QuestionaireTable in the questionaire Row in the table

Planning features There are many questions we can ask about planning but one is very important There are many questions we can ask about planning but one is very important If today is 18 th of May does everything go smoothly? If today is 18 th of May does everything go smoothly? a)we are just on time b)we are late c)we are ahead of the timetable

“Planning" metadata consists includes has in a year runs is divided Division Department Survey Annual production plan (Statistical activities) Annual publishing plan Survey processing unit

Metadata collected once and used everywhere There are many places where the metadata can be stored but one rule is very important There are many places where the metadata can be stored but one rule is very important Bo Sundgren golden rule of thumb: It is probably good to store the metadata once and use many times Bo Sundgren golden rule of thumb: It is probably good to store the metadata once and use many times

“Semantical" metadata is collection of is placed in is described describes uses Survey Statistical object Statistical variable Questionaire_ Data matrix (table) Publication

Structure of the organization Data access control Planning Technical metadata Semantics

GUILDENSTERN Nor do we find him forward to be sounded, But, with a crafty madness, keeps aloof, When we would bring him on to some confession Of his true state. W. Shakespeare(1564 – 1616) The Tragedy of Hamlet, Prince of Denmark Act 3, Scene 1

Thank you