Cover Pages Logo SEARCH
Advanced Search
Site Map
CP RSS Channel
Contact Us
Sponsoring CP
About Our Sponsors

Cover Stories
Articles & Papers
Press Releases

XML Query

XML Applications
General Apps
Government Apps
Academic Apps

Technology and Society
Tech Topics
Related Standards

OASIS TC Charter Proposal: SCA-J

OASIS Open CSA Member Section: SCA-J TC Charter Proposal

Subject:  Proposed Charter for OASIS Service Component Architecture for Java(tm) (SCA J)
          Technical Committee - 4 of 6
From:     "Mary McRae" <>
To:       <>,
Date:     Mon, 2 Jul 2007 09:17:44 -0400

To OASIS Members:

A draft TC charter has been submitted to establish the OASIS Service Component Architecture for Java(tm) (SCA J) Technical Committee. In accordance with the OASIS TC Process Policy section 2.2: ( the proposed charter is hereby submitted for comment. The comment period shall remain open until 11:45 pm ET on 16 July 2007.

OASIS maintains a mailing list for the purpose of submitting comments on proposed charters. Any OASIS member may post to this list by sending email to: All messages will be publicly archived at: Members who wish to receive emails must join the group by selecting "join group" on the group home page: Employees of organizational members do not require primary representative approval to subscribe to the oasis-charter-discuss e-mail.

A telephone conference will be held among the Convenor, the OASIS TC Administrator, and those proposers who wish to attend within four days of the close of the comment period. The announcement and call-in information will be noted on the OASIS Charter Discuss Group Calendar.

We encourage member comment and ask that you note the name of the proposed TC (SCA-J) in the subject line of your email message.



Mary P McRae
Manager of TC Administration, OASIS
phone: 603.232.9090

Normative Information


OASIS Service Component Architecture for Java(tm) (SCA J) Technical Committee

Member Section Affiliation

Open CSA Member Section

Statement of Purpose

The purpose of the OASIS SCA-J Technical Committee (TC) is to develop specifications that standardize the use of the use of Java(tm) technologies within an SCA domain. This TC is part of the Open-CSA member section and its work must be coordinated with the work of the other TCs in the member section.

The TC will define:

  • APIs and annotations that facilitate the declaration and use of SCA constructs from Java
  • A Java-based programming model for creating SCA component implementations that depends only on Java Standard Edition, version 5 or greater
  • A Java-based programming model for creating SCA component implementations that use the technologies of the Spring Framework Core
  • Mechanisms that allow an SCA domain to use and interoperate with constructs defined by Java Enterprise Edition, enabling the following scenarios:
    1. Accessing EJB session beans that have been deployed to JavaEE runtimes through SCA references that use an EJB-specific binding
    2. Providing SCA services through an EJB session bean binding
    3. Consumption of SCA-exposed services from Java EE components in an SCA-aware JavaEE runtime
    4. Use of Java EE components as Service Component Implementations
    5. Use of recursive SCA assembly in Java EE applications
    6. Use of Java EE modules as Service Component Implementations

The work of this committee will be based the following specifications, submitted to the TC as a reference:

  • SCA Java Component Implementation Specification
  • SCA Java Common Annotations and APIs
  • SCA Spring Component Implementation
  • SCA EJB(tm) Session Bean Binding


The scope of this TC includes work to define any of the following:

  • Java annotations and API's for declaring, using or configuring any SCA-related construct
  • Java API's for accessing and manipulating data that is associated with the runtime context of an SCA component or client
  • A Java-based programming model for creating SCA component implementations that depends only on Java Standard Edition, version 5 or greater
  • A Java-based programming model for creating SCA component implementations that use the technologies of the Spring Framework Core
  • An EJB session bean binding that allows access to services that are deployed as JavaEE EJBs or to make SCA services available as EJBs
  • Java-specific characteristics of the packaging format used for an SCA contribution that may be deployed to Java-based runtimes
  • Mechanisms for resolving Java class names, QNames and other artifact references within a Java-based SCA runtime; such a mechanism may make use of existing standardized artifact resolution mechanisms
  • Annotations for standard policy intents that may be used by components in a Java-based SCA runtime

The following additional in-scope items relate to the development of a specification for the integration of SCA with Java EE:

  • SCA implementation types for components of Java EE programming models:
    1. Web Components
    2. EJB Components
      1. Session Beans
      2. Message-Driven Beans
      3. JAX-WS annotated session beans
    3. JAX-WS Components
    4. JCA Resource Adapter Components
  • SCA implementation types for Java EE module types, such as EJB JARs and EARs
  • SCA deployment for Java EE
    1. For Enterprise Application packages (.ear)
    2. For single module packages (ejb-jar, .war, .rar)
  • The use of SCA assembly:
    1. Within the deployment package that can be used with JavaEE
    2. Over existing packages within the SCA Domain
  • Definition of the relationship between policy equivalents in Java EE and the SCA policies framework
  • Defining constructs for accessing SCA components from Java EE presentation tier technologies

Out of Scope

The following is a non-exhaustive list. It is provided only for the sake of clarity. If some function, mechanism or feature is not mentioned here, and it is not mentioned in the Scope of Work section either, then it will be deemed to be out of scope.

The TC will not define Service Provider Interfaces (SPIs) that may be used to extend a Java based SCA runtime

The TC will not define APIs that modify the contents of an installed composite definition

The TC will not define API's related to managing a Java-based SCA runtime, including:

  • Java APIs for initiating and shutting down a runtime that can host SCA components or clients
  • Java APIs associated with the deployment of SCA components (including composites)

The TC will not define new SCA implementation types, other than those mentioned in the in-scope section

The TC will not define SCA intents or policy sets

The TC will not define any wire-level protocols

The TC will not define a mapping of user-defined data formats (in XML or otherwise) into or out of Java constructs

Upwards Compatibility

There are no formal requirements for upwards compatibility from the input documents to this TC. This is to ensure that the TC has maximum freedom of action in defining the OASIS standard. However it is recognized that there will be early implementations in the marketplace based upon these input documents and careful consideration must be applied to any change of feature/function that would cause incompatibilities in the OASIS standard at:

  • Source Code level
  • Compiled Object Code
  • XML data definitions

At minimum, known enhancements to the input documents that will cause compatibility issues with early implementations in the marketplace will be specified in a chapter in the specification offering migration guidance.


In line with the OASIS TC process, the TC will produce normative conformance information describing the normative characteristics of the specification and specific statements about what an implementation must do to conform to the specification, and what aspects are optional (if any).

Test Suite

The TC will produce a test suite which can be used to test conformance to the specification which will include:

1. A series of valid and invalid test cases which cover as much as is practical of the conformance statements of the specifications produced by this TC, with a description of each of the artifacts involved, constraints on the environment, the test case characteristics and their expected behavior.

2. Example bindings may form part of the test suite, and are only provided as working samples which can be replaced by other specific bindings.

The Test Suite shall be packaged separately from the specifications produced by the TC and will contain a set of materials including but not limited to SCA composite and related SCA files, Java files, WSDL files, XSD files.

The TC shall develop the test suite in collaboration with other TCs within the Open-CSA Member Section.

The following material should be considered as best practice for the preparation of conformance and test suite materials:

From OASIS: material on specification conformance statements:

From the W3C, material on specification variability, test metadata & specification clarity:


The TC has the following set of deliverables:

  • A revised SCA Java Component Implementation Specification
  • A revised SCA Java Common Annotations and APIs Specification
  • A revised SCA Spring Component Implementation Specification
  • A revised SCA EJB Session Bean Binding Specification
  • A specification that standardizes SCA integration with Java EE

These specifications will reflect refinements, corrections or material technological improvements with respect to the input documents and in accordance with this charter. Ratification of the above specifications as OASIS Standards, including a brief period to address any errata, will mark the end of the TC's lifecycle. The TC may choose to vary the number of the specification documents and their titles.

Exit Criteria

The TC shall define concrete exit criteria that include at least two independent offerings that implement and are compliant with the all normative portions of specifications and demonstrate interoperability and portability as appropriate. Note that these are minimums and that the TC is free to set more stringent criteria.


Once the TC has completed work on a deliverable and it has become an OASIS standard, the TC will enter "maintenance mode" for the deliverable.

The purpose of maintenance mode is to provide minor revisions to previously adopted deliverables to clarify ambiguities, inconsistencies and obvious errors. Maintenance mode is not intended to enhance a deliverable or extend its functionality.

The TC will collect issues raised against the deliverables and periodically process those issues. Issues that request or require new or enhanced functionality shall be marked as enhancement requests and set aside. Issues that result in the clarification or correction of the deliverables shall be processed. The TC shall maintain a list of these adopted clarifications and shall periodically create a new minor revision of the deliverables including these updates. Periodically, but at least once a year, the TC shall produce and vote upon a new minor revision of the deliverables.

IPR Mode

The TC will operate under the RF on Limited Terms mode under the OASIS IPR Policy.

Anticipated Audience

The anticipated audience for this work includes:

  • Vendors offering Java-based SCA runtimes
  • Other specification authors that need Java APIs and annotations for SCA constructs
  • Software architects and programmers, who design, write or integrate SCA applications


TC business will be conducted in English.

Non-normative Information Regarding the Startup of the TC

Related and Similar Work

The SCA specifications are intended to encompass a range of technologies which are useful in implementing service-oriented solutions. These include the range of Web-services related specifications such as WSDL and SOAP, the various WS-Security specifications, WS-Addressing, WS-Notification. The list is extensive and there is no limit to the relevance of these specifications to SCA. SCA does not intend to replace these specifications, but to build upon them.

Other existing technologies such as Java Enterprise Edition, the Spring Framework and CORBA also have a relationship to SCA and SCA anticipates optionally using these in relevant parts of the specifications (e.g. to define specific implementation types for artifacts such as JEE EJBs and Spring application contexts).

Proposed Date, Time, and Location of First TC Meeting

Date: Sept 6, 2007
Time: 13:00 EDT
Duration: 1 hour
Mode: Teleconference
Telephone: Dial-in TBC, along with e-Meeting facilities
Sponsor: SAP

Date: Sept 18, 2007
Time: 09:00 EDT
Duration: 3 days (in parallel with F2F meetings of other
TCs affiliated with this member section)
Mode: F2F meeting in East-Coast USA location (location TBC)
Telephone: Dial-in TBC, along with e-Meeting facilities
Sponsor: SAP

Ongoing Schedule

Weekly 60 Minute teleconferences sponsored by TBC.
Time TBC by the TC.

It is anticipated that the committee will meet face-to-face once every quarter at a date and venue to be decided by the TC, but with a commitment to hold meetings in different regions of the world so as to share the effort of travel.


The following eligible individuals are in support of this proposal:


Henning Blohm, SAP,

Name of Member Section to Which This TC is Affiliated

Open CSA member section

Anticipated Contributions

It is expected that the following SCA Specifications, Version 1.00, as published in March 2007 will be a contributions from the Open SOA Collaboration:

  • SCA Java Common Annotations and APIs
  • SCA Java Component Implementation
  • SCA Spring Component Implementation (see [2]), along with references to the other SCA Version 1.00 specifications (see [2]), plus any work performed by the Open SOA collaboration between March 2007 and the start of the work of the SCA-Assembly TC

Draft FAQ Document

Intentionally left empty.

Proposed Working Title

SCA Java Component Implementation Specification
SCA Java Common Annotations and APIs Specification
SCA Spring Component Implementation Specification
SCA EJB Session Bean Binding Specification
SCA Java EE Integration Specification


[1] Service Component Archtecture Assembly Specification Version 1.0

[2] Service Component Architecture Version 1.0 Specifications

Java and all Java-based trademarks are trademarks of Sun Microsystems, Inc. in the United States, other countries, or both.


Prepared by Robin Cover for The XML Cover Pages archive. News story: "Six Technical Committees Proposed for the OASIS Open CSA Member Section." See also the 2007-03-21 news story: "Open SOA Collaboration Vendors Advance SCA and SDO Specs for Standardization." The OSOA Collaboration represented by eighteen leading technology vendors announced that key Service Component Architecture (SCA) and Service Data Objects (SDO) Final Specifications have completed incubation and will be submitted to OASIS and the Java Community Process (JCP) for standardization. SCA provides an executable model for composition of individual service components into a service network. SDO supports format-independent handling of business data.

Globe Image

Document URI:  —  Legal stuff
Robin Cover, Editor: