Its latest focus is on the culture and sport sector, with the release of discussion paper Improving Strategic Commissioning in the Culture and Sport Sector and a seminar event being held next month.
The discussion paper notes that while compulsory competitive tendering (CCT) "marked a decisive break with the traditional municipal models of provision ... the market did not develop under CCT to the extent that had been anticipated".
Parks are a classic example of one of the services already well-placed for understanding the commissioning model, as many local authorities have been working in partnership with private contractors for a number of years.
But IDeA's report underlines that commissioning is not just another way of saying procurement.
The framework must include strategic planning, procurement and then performance management.
The Government has developed principles that it believes should inform the commissioning process. These include consulting potential providers, including those from the third sector, and seeking long-term contracts and risk-sharing.
Westminster's is not the only way of tackling strategic commissioning, say industry figures.
London Parks & Green Spaces Forum director Tony Leach said: "The health authorities do a lot of strategic commissioning over wide geographic areas, but in parks we still do things borough by borough. The danger is that with different political allegiances the boroughs won't work together."
GreenSpace chief executive Paul Bramhill agreed: "There might be better ways of looking at what services are bunched together."
- The free IDeA event on Understanding Strategic Commissioning is being held on 2 September at Colston Hall in Bristol. To book, visit www.idea.gov.uk or email firstname.lastname@example.org.