Yes, there are many references and orchestration and choreography approach are applicable. Some references are under:

Misra, H.K. (2009), Understanding SOA Perspective of e-Governance in Indian Context: Case Based Study, 22nd Bled eConference, eEnablement: Facilitating an Open, Effective and Representative eSociety, June 14 - 17, 2009; Bled, Slovenia.

Misra, H.K. (May 2010), Understanding SOA Perspective of e-Governance in Indian Context: Case Based Study, Book Chapter, Book Tittle �User Interfaces�, ISBN no. 978-953-307-084-1, published by IN-TECH, Vienna. Url: http://sciyo.com/articles/show/title/understanding-soa-perspective-of-e-governance-in-indian-context-case-based-study.

Misra, Harekrishna and Hiremath, B N, (2009),SOA Based Development Orientation of Information Systems: A Case of Wadi, Second National Conference on Agro-Informatics and Precision Farming, University of Agricultural sciences, Raichur, Organized by INSAIT, Dharwad, December 2-3.

Rama Krushna Das · Sujata Patnaik · Chinmaya Mohini

Service Oriented Layered Approach for E-Governance System Implementation

Conference Paper · December 2014

DOI: 10.1109/ICIT.2014.38

Conference: International Conference on Information Technology (ICIT), 2014, At Bhubaneswar, India, Volume: Publisher: IEEE ; Page(s): 293 - 298