Enterprise architecture (EA) is as an approach used to develop digital services. This study ex-amines the patterns of EA adoption in the public sector and the relationship between public or-ganisations’ resources and EA adoption through the lens of resource-based view theory. The qualitative research approach was used. We collected documents from 24 provinces and their EA programs, as well as conducted three in-depth case studies with qualitative interviews. We identified three patterns of adoption and showed the impact of organisational capabilities on the process of establishing EA in public organisations.