OMA Architecture Working Group

Vincenzo Amorino


Vincenzo Amorino


The OMA ARC WG, currently chaired by Vincenzo Amorino of Telecom Italia, is one of the horizontal working groups in OMA and is responsible for identifying and specifying architectural aspects for OMA service enablers in order to support end-to-end interoperability across different devices, network operators, and service providers.

The OMA Architecture Group is responsible for the definition and maintenance of the overall OMA Service Environment (OSE) in close cooperation with the other groups in OMA. The Architecture WG serves a coordination and leadership role, producing an architecture that provides for both current and future OMA needs.

In addition the OMA ARC WG is responsible for creating a more coordinated approach to and specifying the operation of:

  • mobile commerce and charging mechanisms, features and services
  • security mechanisms, features and services
  • smartcard mechanisms, features and services
  • network API governance

The OMA Architecture Group provides the rest of the OMA with expertise and support in these areas. In addition, the group also serves as the source of expertise on issues related to smart cards and other secure hardware tokens. The OMA Architecture Group assures, through review and guidance, the adherence and consistency of specification work to the OSE and other applicable deliverables.
The main objectives and activities within the scope of ARC WG are to identify gaps and issues related to interworking among multiple enablers and provide recommendations, as well as to develop enabler architectures in conjunction with other working groups to ensure:

  • consistency of the IMS in OMA principles for those enablers leveraging IMS
  • consistency with the Architecture Principles and the OSE normative statements
  • a coordinated approach to mobile commerce and charging
  • a coordinated approach to security mechanisms, features, and services
  • a coordinated approach to smartcard related requirements
  • re-use across enablers
  • overall consistency across enablers
  • appropriate interfaces are specified for each enabler
  • a coordinated approach to network API related OMA work items

ARC Sub-working Groups

OMA ARC WG is composed of several Sub-working Groups (SWG) which include the Security (SEC) SWG and Smart Card Technology (SCT) SWG serving thus as a source of expertise on issues of architecture, security, smartcard, charging, mobile commerce and network APIs.

Bringing Value to the Mobile Industry

The OMA ARC WG has made significant contributions internally in OMA and externally to the mobile industry, including:

  • integration of charging and mobile commerce technology within OMA
  • integration of security mechanisms within OMA.
  • integration of smart card technology within OMA.
  • network API governance within OMA

OMA ARC WG has actively contributed to OMA’s mission by attending and presenting OMA APIs at ICIN in 2009, SDP Summit in 2011, Small Cell Forum in 2011, ITF workshop in 2012, and by giving interviews to industry analysts in 2012. OMA ARC WG participated in OMA’s API launch program, and has been actively involved in closing the gap between APIs among GSMA Access, GSMA RCS/RCSe, SCF and OMA.

Active OMA ARC WG Members

The list of OMA members active in the ARC WG includes Telecom Italia, AT&T, Gemalto NV, Deutsche Telekom, Telefonica, Ericsson, Nokia Siemens Networks, Alcatel-Lucent, China Unicom, TeliaSonera, ZTE, China Telecommunications, China Mobile, ETRI and SKT.

ARC WG Highlighted Achievements 2002-2012

ARC WG has delivered many requirements specifications over the last 10 years. Below is a non-exhaustive list of such specifications:

  • OSE architecture for consistent realization within OMA enablers
  • OMA Global Service Architecture
  • PEEM enabler to secure enforcement of policy in standardized way
  • Application Layer Common Security Framework
  • Authorization Framework for Network APIs to fulfill the delegated authorization requirements
  • Charging for Mobile Services for on-line and off-line standardized way of charging
  • Smartcard Web Server enabler for SCT
  • Utilization of IMS capabilities
  • Next Generation Service Interfaces (NGSI)
  • SOAP bindings for NGSI V1.0
  • RESTful bindings for Parlay X
  • Key Performance Indicators for OMA Enablers
  • Parlay Service Access.
  • Services User Profile Management
  • Secure Content Identification Mechanism
  • General Service Subscription Management
  • Global Permission Management
  • Parlay in OSE
  • Categorization based Content Screening
  • 21 Restful Network API work items completed, to secure standardized third party access to resources

Future Plans for 2013 and Beyond

Looking forward to 2013 and beyond, OMA ARC WG will continue creating new enablers to support interoperable end-to-end mobile services.

In particular, the activity on Restful Network APIs will be finalized, including various profiles as requested by GSMA OneAPI and GSMA RCS.

In addition, the ARC WG is ready to embrace new technologies and will continue supporting other OMA WGs, as well as adapting to the new challenges coming from the evolution of the service layer world.