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Agenda
You are invited to a
series of meetings where we will be putting forward our
ideas for new Programs on the following topics:
- Transaction
Processing
- Application Services
- Location Services
- Core Information
Exchange
These new Programs will
cover areas that have been identified as key components
of the IT DialTone TM architecture. The
agenda for each Program is discussed below.
There will be two parallel
sessions on Tuesday afternoon (following the Council
Sessions). The same introductory presentation will be
made at the start of each session and it will be feasible
to swap between sessions at the break.
Tuesday
23rd Sept |
Session
A |
Session
B |
2:00
p.m. |
Transaction
Processing |
Core
Information Exchange |
3:30
p.m. |
Break |
Break
|
4:00
p.m. |
Application
Services |
Location
Services |
5:30
p.m. |
end |
end |
There
will not be meetings of either the Interoperability or
the Information Super Highway Program Groups in Boston.
Instead, we suggest that:
- Former members of the
Interoperability Program Group may be interested
to go to the sessions on Transaction Processing
and Application Services, and
- Former members of the
Information Superhighway Program Group may be
interested to go to the sessions on Core
Information Exchange and Location Services.
Objectives of the
Sessions
These sessions are
effectively the "launch" of these four new
programs that are critical to the implementation of IT
DialTone. Part of kick-starting the programs will be:
- to agree the scope of
each Program
- to initiate the
collection of Infrastructure Requirements
- to agree the way
forward
It is not clear at this
point whether the sessions will result in the
establishment of Program Groups. Either way, we would
expect the Programs to consist of major staff activity
behind the scenes and for each to be reviewed at
subsequent Member Conferences.
The New Process
IT DialTone epitomises
interoperability and openness. Its vision is of a
ubiquitous set of infrastructure services that provide a
common environment for robust, secure and responsive
network-wide computing. The Open Group will work to bring
IT DialTone to reality via three major areas of activity:
- establishing a
comprehensive architecture for IT DialTone;
- establishing
specifications, standards, and branding
mechanisms to define the implementation of that
architecture, and
- managing
collaborative development efforts to demonstrate
specific portions of the IT DialTone
functionality.
Defining the customer
requirements for IT DialTone and persuading vendors to
build products to match them will demand careful
coordination of the buy and supply side. To do this will
mean that the Open Group must become a Trusted Forum
in which all sides can reach a consensus. Putting this
into practice efficiently has demanded the Open Group
realign its process:
- A new end-to-end
Process has been developed with the help of
members from all constituencies. This will be
described in a Joint Councils session on Tuesday
morning.
- We are establishing
four new Programs to coincide with the major
sectors of the IT DialTone. Other sectors are
already effectively addressed in the Security and
Management Programs.
- The primary task of
each Program will be to capture IT needs (from
both buy- and supply-sides) and work with
professional IT architects from the Open Group to
define specific Infrastructure requirements.
- A new Architecture
Board will take responsibility for the overall
architecture of the IT DialTone and thus ensure
each contribution to the IT infrastructure is
fully interoperable. The objective will always be
to cause the creation of products that satisfy
business needs and to do this in a way that is
rapid, cost effective and accountable.
- Actual development
work will be undertaken by specific Project
Groups which will be professionally managed and
accountable to the Architecture Board and the
relevant Program.
The New Programs
The areas to be covered by
each new Program are outlined below. For each we have
summarised:
- the contribution we
expect it will make to the IT DialTone
- the major technical
challenges the Program will address.
Transaction Processing Transaction Processing
services are the foundation of on-line commercial
data processing. Traditional on-line TP services
have been defined by what are called the ACID
properties (Atomicity, Consistency, Isolation,
Durability). IT DialTone Transaction Processing
services will provide for the transactional
semantics of enterprise systems to be extended
across an infrastructure which is not under the
control of any single organisation.
IT DialTone
Transaction Processing will support ACID
properties, with
- Data transfer
protocol independence (using existing
protocols such as HTTP and FTP without
the need for special purpose, TP
specific, protocols)
- Interoperability
with heterogeneous and legacy systems;
- Support for
workflow and longer running transactions
Major challenges
to be considered in the establishment if IT
DialTone will include:
- The
determination of the extent to which it
is desirable or necessary to support the
full set of ACID properties across the
networked infrastructure.
- Support for
interoperability with traditional
procedural TP services running on
enterprise systems
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Core Information Exchange Information
Exchange is the fundamental underpinning
of the IT DialTone architecture.
It consists of data formats and protocols used
for communication across the network between
Information systems. Three layers are defined:
- The Base
Layer transmits packets over any
physical communication medium The
IT DialTone assumes support for the
Internet Protocol (IP).
- The Transport
Layer transmits arbitrarily
sized chunks of data between Information
Systems and implements connections that
support reliable delivery. The IT
DialTone transport layer consists of TCP
and UDP.
- The
Session Layer defines data
formats and protocols as needed to
support the use of the network for
specific purposes. Examples are: file
transfer, e-mail, graphics and executable
code.
Major challenges
to be considered in the establishment of
IT DialTone will include:
- The need to
balance the demand for an ever richer set
of data formats and protocols, with the
need to define a core ubiquitous
infrastructure
- The
imperative to migrate to IP version 6
- The full
integration of security considerations
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Application Services The IT DialTone
infrastructure provides facilities for the
interchange of information between applications,
through the definition of generic data structures
and all of the supporting services including :
- Installation,
update, de-installation of application
software
- Message based
remote execution of applications (e.g.
CORBA)
- Remote
execution of applications with local
display (e.g. The X Window System)
- Download and
execution of applications (e.g. JAVA,
ActiveX)
Major challenges
to be considered in the establishment of
IT DialTone will include:
- The need to
establish an acceptable level of
coexistence and interoperability between
object models
- The need to
achieve a balance between innovation and
standardization as technology such as
JAVA and ActiveX evolves
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Location Services IT DialTone
Location Services provide service consumers with
the ability to locate and use required resources
of all kinds across the network.
IT DialTone
Location Services will support:
- Policies for
identifying resources (names,
identifiers, attributes, properties etc.)
and for matching criteria (schema, rules,
filters, constraint languages etc.)
- Multiple
resource organisations (hierarchical,
unstructured, meshes etc.) and structural
rules (name and type based, attributes
and keywords etc.).
- The needs of
different consumer types (general public,
business, programmers, administrators).
- Fuzzy
searches (e.g., human users may only have
a vague idea of the kind of service they
need) and approximations (e.g., similarly
pronounced words, equivalent services but
not of the same class).
Major challenges
to be considered in the establishment of
IT DialTone will include
- The
extensible, global support of many types
of resources, including information, user
accounts, physical entities and nodes,
and services, with scaleability across
enterprise boundaries.
- The
application of selection constraints to
locate required resources in a
potentially global network
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