The table below looks at the statistics for ERD skills in IT contracts advertised for the City of London region. Included is a guide to the contractor rates offered in IT contracts that have cited ERD over the 3 months to 22 January 2017 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
22 Jan 2017
Same period 2016 Same period 2015
Entity-Relationship Diagram (ER Diagram)
London / City of London
Rank - 148 193
Contract jobs citing ERD 0 1 1
As % of all contract IT jobs located in the City of London - 0.032% 0.020%
As % of the Processes & Methodologies category - 0.038% 0.024%
Number of daily rates quoted 0 1 1
Median daily rate - £500 £300
Median daily rate % change year-on-year
- +66.66%
UK excluding London median daily rate £438 £324 £285
% change year-on-year
+35.13% +13.59%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the City of London region.

Processes & Methodologies Category
City of London
Contract IT job ads with a match in the
Processes & Methodologies category
2490 2613 4166
As % of all contract IT jobs located in the City of London 86.04% 84.87% 81.81%
Number of daily rates quoted 1978 2051 3273
Median daily rate £500 £475 £450
Median daily rate % change year-on-year
+5.26% +5.55%
90% offered a daily rate of more than £360 £317 £320
10% offered a daily rate of more than £650 £625 £625
UK excluding London median daily rate £405 £400 £393
% change year-on-year
+1.25% +1.91%
Number of hourly rates quoted 13 28 36
Median hourly rate £55.00 £28.00 £20.45
Median hourly rate % change year-on-year
+96.42% +36.95%
UK excluding London median hourly rate £35.00 £40.00 £26.00
% change year-on-year
-12.50% +53.84%

ERD
Jobs Demand Trend in the City of London

The demand trend of contract jobs across the City of London region citing ERD as a proportion of all IT contracts with a match in the Processes & Methodologies category.

ERD Jobs Demand Trend in the City of London

ERD
Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing ERD across the City of London region.

ERD Daily Rate Trend in the City of London

ERD
Top 16 Related IT Skills in the City of London

For the 6 months to 22 January 2017, IT contractor jobs citing ERD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for ERD.

1 2 (100.00%) Data Modelling
2 1 (50.00%) ETL
2 1 (50.00%) Business Intelligence
2 1 (50.00%) ERwin
2 1 (50.00%) Stakeholder Management
2 1 (50.00%) TOGAF
2 1 (50.00%) Data Analysis
2 1 (50.00%) Data Architecture
2 1 (50.00%) Kimball Methodology
2 1 (50.00%) User Stories
2 1 (50.00%) Wireframes
2 1 (50.00%) Data Flow Diagram
2 1 (50.00%) XML
2 1 (50.00%) UML
2 1 (50.00%) Data Warehouse
2 1 (50.00%) EDI

ERD
Top Related IT Skills in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Database & Business Intelligence
1 1 (50.00%) Data Warehouse
Development Applications
1 1 (50.00%) ERwin
Job Titles
1 1 (50.00%) Analyst
1 1 (50.00%) Architect
1 1 (50.00%) Business Analyst
1 1 (50.00%) Business Intelligence Analyst
1 1 (50.00%) Business Intelligence Business Analyst
1 1 (50.00%) Data Architect
1 1 (50.00%) Solutions Architect
Libraries, Frameworks & Software Standards
1 1 (50.00%) EDI
1 1 (50.00%) XML
Processes & Methodologies
1 2 (100.00%) Data Modelling
2 1 (50.00%) Business Intelligence
2 1 (50.00%) Data Analysis
2 1 (50.00%) Data Architecture
2 1 (50.00%) Data Flow Diagram
2 1 (50.00%) ETL
2 1 (50.00%) Kimball Methodology
2 1 (50.00%) Stakeholder Management
2 1 (50.00%) TOGAF
2 1 (50.00%) UML
2 1 (50.00%) User Stories
2 1 (50.00%) Wireframes