A summary of the data validation services which 2and7 Limited can provide to your company to ensure data are collected accurately and in a timely manner.

1. Data Validation
Services
Delivering quality and complete data sets

2. Introduction
• A complete and accurate data set is essential if the conclusions
drawn following the data collection exercise are to remain valid
and legitimate;
• Building on 2and7 Limited’s range of data collection systems, we
also offer complementary services to ensure the data collected is
as complete and valid as possible;
• Using a combination of Microsoft SQL Server, Microsoft
SharePoint Server and our own tricks of the trade, we can
automate the creation of data queries by checking for a variety of
common mistakes;
• A variety of data quality metrics can be displayed and reported
depending upon your individual requirements;

3. Missing Information
• The first test is to ensure that the individuals/company collecting
the data have filled in the information required and the time points
required;
• You provide us with a schedule which shows which data should
be captured and when;
• We convert this into a series of rules which can be scheduled to
run in real time, overnight or in regular batches;
• The results of these rules can then be produced as standalone
reports or integrated into the data collection database to be
tracked;
• The queries are sufficiently sophisticated to also include
instances where data were correct, but were subsequently
amended or removed;

4. Beyond Tolerance
• The data set is complete, but is it accurate?
• Queries can also be written which compare specific data
elements against agreed benchmarks and can subsequently
highlight any data which are beyond the normal range;
• As well as a quality tool, this feature can also be useful for
analysis by potentially identifying areas of interest or concern –
especially where the data are related to patient care, etc;
• Tolerance levels can be set individually or for a group of queries;

5. Contextual Queries
• These are the final set of queries to be identified which check to
ensure that linked fields are completed;
• These queries are the most complex and flexible, with their use
ranging from checking that all test results must have an
associated test date through to allowing for variation in data fields
based upon the user or subject;

6. Query Reporting
• There a variety of ways in which data queries can be reported
ranging from static PDFs, through to dynamic Microsoft Excel
workbooks and Microsoft SharePoint lists;
• The information to be reported can vary according to the
individual study, but more typically captures the following:
• Information to enable the customer to find the individual visit/episode;
• A description of the rule that has been violated;
• Where appropriate, the relevant form section or page;
• Depending upon the data collection system chosen, the queries can then
be displayed via a web interface to allow them to be addressed and
updated;

7. Query Resolution Process
• Once the data queries have been raised, you need a way of
flagging when they have been addressed;
• There are two main ways in which queries can be closed within
the system:
• Automatically – a missing value is completed and the system
closes the query automatically;
• Manually – using a web interface, the query can be updated
with comments explaining the absence of those data;
• Both methods record the date/time when the query was closed,
the identity of the person closing the query and (where
appropriate) who authorised the closure of that query;

8. Closing Comments
• The system outlined here is optimised to use Microsoft
SharePoint 2010, Microsoft SQL Server and Microsoft Office,
making use of any existing licences you may already have;
• The system is available as a public cloud, private cloud, co-
located or fully managed system depending upon individual
requirements;
• The system described is currently used in a variety of studies
within the University of Leeds and Leeds Teaching Hospitals
NHS Trust;

9. Contact Details
For more information, please contact us via either of the following methods:
Web site: http://2and7.co.uk
By post: 2and7 Limited, Suite 13, Prospect House, Colliery Close,
Staveley, Chesterfield, Derbyshire S43 3QE
Ged Connolly-Thompson
Managing Director, 2and7 Limited
Mobile: 07946 359060