16. Geographic and Service Group Information

Revenue, which is primarily based on the country of the Company’s contracting entity, is attributed to geographic areas as follows (in thousands):


	Year Ended
	December 27,	December 28,	December 30,
	2013	2012	2011
Revenue:
North America	$ 179,539	$ 173,650	$ 158,836
International (primarily European countries)	44,291	49,086	50,227
Total revenue	$ 223,830	$ 222,736	$ 209,063

Long-lived assets are attributed to geographic areas as follows (in thousands):


	Year Ended
	December 27,	December 28,
	2013	2012
Long-Lived Assets:
North America	$ 74,095	$ 74,407
International (primarily European countries)	16,246	16,270
Total long-lived assets	$ 90,341	$ 90,677

As of December 27, 2013, foreign assets included $15.8 million of goodwill related to the REL and Archstone acquisitions. As of December 28, 2012, foreign assets included $15.6 million of goodwill related to the REL and Archstone acquisitions and $0.1 million of intangible assets related to the Archstone acquisition.

In the following table, The Hackett Group service group encompasses Benchmarking, Business Transformation and Executive Advisory groups, and includes EPM Technologies. The ERP Solutions group encompasses SAP ERP (in thousands):


	Year Ended
	December 27,	December 28,	December 30,
	2013	2012	2011

The Hackett Group	$ 184,112	$ 187,787	$ 181,824
ERP Solutions	39,718	34,949	27,239
Total revenue	$ 223,830	$ 222,736	$ 209,063