Presentation on theme: "StEPS at EIAWhere We Are Now Paula Weir and Sue Harris Energy Information Administration, U.S. Department of Energy ICES3 Topic Contributed Session: Generalized."— Presentation transcript:
StEPS at EIAWhere We Are Now Paula Weir and Sue Harris Energy Information Administration, U.S. Department of Energy ICES3 Topic Contributed Session: Generalized Survey Processing SystemsPart II
Presentation Outline Background and reason for implementing a generalized system First issue of getting data into StEPS StePs moduleschanges made and how used Modifications to other systems and creation of new systems needed Summary and future work
Background In 2002 EIA acquired StEPS from the U.S. Bureau of Census Low cost solution for replacing legacy systems Since then 18 surveys have been migrated to StEPS Differences in survey requirements and business process have resulted in significant customization Challenges faced in implementing a generalized system designed with other surveys and processes in mind
Getting Data into StEPS Process for creating batch data into the StEPS input format EIA developed the Data Collection Module (DCM) Originally intended to be a generalized system DCM provides the identification of the respondents expected to report All reported data are keyed or passed through the DCM The DCM performs multiple front- end tasks Process original responses and resubmissions. Generate reports for organizing and tracking information regarding survey processing (case control)
StEPs Modules This processing system includes: a) modules for specifying parameters for the specific users and survey; b) modules for data collection activities including mailing, receipt and check-in; as well as, c) modules for post collection such as editing, imputation, and estimation.
Customization of StEPS Evolutionary process Original vision was to remain compatible with future versions and upgrades from Census As a result of differences in survey and business processes, the vision changed Example: analysts work on multiple surveys and time periods, so EIA created a StEPS Menu Interface screen EIA Tools
Defining STePS Edits StEPS has 7 edit rules types: 1) required data item test; 2) range test; 3) list directed test; 4) skip pattern validation test; 5) balance test; 6) survey rule test; and 7) negative test. The use of the edit types varied within the three groups of EIA surveys. Many of the edit rules are common to many of the data cells, so a wildcard feature was developed to apply the edit to cells selected through a drop down. Performance issues and resolution approaches Enhanced roster functionality
Imputation Definition Imputation implemented differently within the three survey groups Simple imputation vs. general imputation Calculation of impute values within StEPS vs brought in as auxiliary file Imputation as a rollover function Major change initiative: Imputation in roster surveys
Review and Correction View reported data, edit flags and resolution, view notes Override flag created Failures highlighted in red Notes functionality enhanced Roster item view and correction screens created Mass correction function for control data
Control Information Master Control and Control Information Latest action Ghosting and successor ID Unghosting to preserve ID as of the time data are reported Relationship to other systems and processes
Other Existing Systems and Creation of New Systems Historical respondent level database--SIS Master Frame File Integrated Frame System OHUBtemporary holding area of control and survey data, job status, other frame and sample information
Summary and Future Work StEPS: one box in an overall process and flow Low cost alternative but did not replace all the functionality in the legacy system New systems and interfaces had to be built and other systems modified Main problems: lack of knowledge on effective implementation (training and resource issues); differences in processes and work flowlanguage barrier; integration with other systems; independent treatment of separate but dependent surveys; dimensionality of EIA surveys Quick fixes and survey specific solutions vs integrated generalized solution for implementation Short run: 3 more surveys; Longer run: focus on edit/impute/estimate in StEPS, graphical interface and outlier detection, revisit process flow, integration of separate but related surveys, upcoming forms modifications, Red Hat?