The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for ERD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ERD over the 3 months to 28 June 2017 with a comparison to the same period in the previous 2 years.

Entity-Relationship Diagram (ER Diagram)
England / London
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 608 621 636
Rank change year-on-year +13 +15  
Permanent jobs citing ERD 4 23 33
As % of all permanent IT jobs advertised in London 0.011% 0.057% 0.075%
As % of the Processes & Methodologies category 0.012% 0.063% 0.084%
Number of salaries quoted 3 10 22
Median salary £62,500 £57,500 £55,000
Median salary % change year-on-year +8.69% +4.54%  
90% offered a salary of more than £54,500 £54,500 £44,500
10% offered a salary of more than £64,500 £74,250 £77,000
UK excluding London median salary £50,000 £40,000 £52,500
% change year-on-year +25.00% -23.80%  

ERD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for process and methodology skills.

Process & Methodology Skills
London
Permanent job vacancies with a requirement for process and methodology skills 33389 36265 39395
As % of all permanent IT job vacancies advertised in London 91.09% 90.54% 89.01%
Number of salaries quoted 26535 31435 33090
Median salary £60,104 £60,000 £57,500
Median salary % change year-on-year +0.17% +4.34%  
90% offered a salary of more than £40,000 £40,000 £37,500
10% offered a salary of more than £85,000 £82,500 £85,000
UK excluding London median salary £45,000 £45,000 £44,000
% change year-on-year - +2.27%  

ERD
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing ERD as a proportion of all permanent or contract IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for ERD in London

ERD
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ERD in London.

Salary trend for ERD in London

ERD
Salary Histogram in London

The salary distribution of IT jobs citing ERD in London over the 3 months to 28 June 2017.

Salary histogram for ERD in London

For the 6 months to 28 June 2017, IT jobs citing ERD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the London region with a requirement for ERD.

1 5 (83.33%) Data Modelling
2 4 (66.67%) ETL
2 4 (66.67%) SQL
2 4 (66.67%) Data Management
3 3 (50.00%) Finance
4 2 (33.33%) Migration
4 2 (33.33%) Data Warehouse
4 2 (33.33%) Marketing
4 2 (33.33%) PL/SQL
4 2 (33.33%) Java
4 2 (33.33%) Business Intelligence
4 2 (33.33%) SOAP
4 2 (33.33%) XML
4 2 (33.33%) Use Case
4 2 (33.33%) Data Integration
4 2 (33.33%) Hadoop
4 2 (33.33%) Kafka
4 2 (33.33%) Analytics
4 2 (33.33%) Master Data Management
4 2 (33.33%) Metadata Management
4 2 (33.33%) Data Transformation
4 2 (33.33%) NoSQL
4 2 (33.33%) Data Quality
4 2 (33.33%) Data Structures
4 2 (33.33%) Enterprise Data Warehouse
4 2 (33.33%) Data Engineering
4 2 (33.33%) Prototyping
4 2 (33.33%) API Integration
4 2 (33.33%) Single Customer View
5 1 (16.67%) Digital Transformation Programme

ERD
Co-occurring IT Skills in 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:

Applications
1 1 (16.67%) MS Visio
Cloud Services
1 1 (16.67%) SaaS
Database & Business Intelligence
1 2 (33.33%) Data Warehouse
1 2 (33.33%) Enterprise Data Warehouse
1 2 (33.33%) Hadoop
1 2 (33.33%) NoSQL
2 1 (16.67%) Pentaho
General
1 3 (50.00%) Finance
2 2 (33.33%) Marketing
3 1 (16.67%) Back Office
3 1 (16.67%) French Language
Job Titles
1 3 (50.00%) Architect
2 2 (33.33%) Business Intelligence Architect
2 2 (33.33%) Business Intelligence Lead
2 2 (33.33%) Lead Architect
3 1 (16.67%) Analyst
3 1 (16.67%) Business Analyst
3 1 (16.67%) Data Architect
3 1 (16.67%) Data Manager
3 1 (16.67%) ETL Architect
3 1 (16.67%) ETL Specialist
3 1 (16.67%) Solutions Architect
Libraries, Frameworks & Software Standards
1 2 (33.33%) Kafka
1 2 (33.33%) SOAP
1 2 (33.33%) XML
2 1 (16.67%) CSS
2 1 (16.67%) HTML
2 1 (16.67%) Regular Expression
2 1 (16.67%) Web Services
Miscellaneous
1 2 (33.33%) Data Structures
2 1 (16.67%) Computer Science
Operating Systems
1 1 (16.67%) Unix
Processes & Methodologies
1 5 (83.33%) Data Modelling
2 4 (66.67%) Data Management
2 4 (66.67%) ETL
3 2 (33.33%) Analytics
3 2 (33.33%) API Integration
3 2 (33.33%) Business Intelligence
3 2 (33.33%) Data Engineering
3 2 (33.33%) Data Integration
3 2 (33.33%) Data Transformation
3 2 (33.33%) Master Data Management
3 2 (33.33%) Metadata Management
3 2 (33.33%) Migration
3 2 (33.33%) Prototyping
3 2 (33.33%) Single Customer View
3 2 (33.33%) Use Case
4 1 (16.67%) Creative Problem-Solving
4 1 (16.67%) Digital Transformation Programme
4 1 (16.67%) Relationship Marketing
4 1 (16.67%) Scrum
4 1 (16.67%) Translating Business Requirements
Programming Languages
1 4 (66.67%) SQL
2 2 (33.33%) Java
2 2 (33.33%) PL/SQL
3 1 (16.67%) Bash Shell
3 1 (16.67%) JavaScript
3 1 (16.67%) Perl
3 1 (16.67%) PHP
Qualifications
1 1 (16.67%) CBAP
1 1 (16.67%) IIBA
Quality Assurance & Compliance
1 2 (33.33%) Data Quality
2 1 (16.67%) QA
Vendors
1 1 (16.67%) IBM
1 1 (16.67%) Oracle
1 1 (16.67%) Pega
1 1 (16.67%) Salesforce.com