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Definition
The popularity of mobile computing and communications
devices can be traced to their ability to deliver information to users when needed.
Users want ubiquitous access to information and applications from the device at
hand, plus they want to access and update this information on the fly. The ability
to use applications and information on one mobile device, then to synchronize
any updates with the applications and information back at the office, or on the
network, is key to the utility and popularity of this pervasive, disconnected
way of computing. Unfortunately, we cannot achieve these dual visions: Networked
data that support synchronization with any mobile device Mobile devices that support
synchronization with any networked data Rather, there is a proliferation of different,
proprietary data synchronization protocols for mobile devices. Each of these protocols
is only available for selected transports, implemented on a selected subset of
devices, and able to access a small set of net-worked data. The
absence of a single synchronization standard poses many problems for end users,
device manufacturers, application developers, and service providers. SyncML is
a new industry initiative to develop and promote a single, common data synchronization
protocol that can be used industry-wide. Driving the initiative are Ericsson,
IBM, Lotus, Motorola, Nokia, Palm Inc., Psion, Starfish Software. Additional companies
are being recruited to join and participate. Founded in February 2000, the SyncML
initiative recognized the worldwide need for one common data synchronization protocol.
With the industry-wide proliferation of mobile devices and the evolution toward
mobile devices as the major means of information exchange, remote synchronization
of data will be of integral importance. The SyncML initiative, officially supported
by well over 200 device manufacturers, service providers and application developers,
is currently developing and promoting an open global specification for mobile
data synchronization.
The popularity of mobile computing and communication
devices can be traced to their ability to deliver information to users when needed.
Users want ubiquitous access to information and applications from the device at
hand, plus they want to access and update this information on the fly.A
long-standing obstacle to the advancement of ubiquitous computing has been the
lack of a generalized synchronization protocol. Until recently, the available
synchronization protocols were proprietary, vendor-specific, and supported synchronization
only on selected transports, implemented on a selected subset of devices, and
able to access a small set of net-worked data. This has slowed development in
the area of mobile computing and been a common source of frustration for users,
device manufacturers, service providers, and application developers.
SyncML
is a new industry initiative to develop and promote a single, common data synchronization
protocol that can be used industry-wide. Driving the initiative are Ericsson,
IBM, Lotus, Motorola, Nokia, among others. SyncML is intended as a common language
that enables smooth, efficient synchronization of personal and business information
over fixed or mobile networks. Its aim is to facilitate the synchronization of
networked information with various devices running SyncML-compatible applications.
As
the first universal synchronization protocol, SyncML offers true freedom to users
of mobile devices by allowing them to send and receive up-to-date information
between their mobile applications and their office or home-based systems regardless
of the platform, manufacturer, or application. SyncML leverages Extensible Markup
Language (XML), making SyncML a truly future-proof platform.
Need
for a Common Data Synchronization Protocol
All
the popular mobile devices - handheld computers, mobile phones, pagers, laptops
- synchronize their data with network applications, desktop calendars, and other
locations where information is stored. This ability to access and update information
on the fly is key to the pervasive nature of mobile computing. Yet, until recently,
almost every device uses a different technology for performing data synchronization.
Trends in the computing industry are moving us toward a future in which users
expect almost any kind of tangible device to be networked. While we haven't reached
that state yet, we already have access to a lot of computing devices that can
be carried around and that possess sufficient computing power to log on to networks:
personal digital assistants, mobile phones, laptops, etc. And the devices are
only getting smaller:
Current
industry trials are testing the feasibility of wearable computers. Users who own
these devices expect to be able to access networked data from almost any place
and in almost any situation. And since these users would find a physical, wired
connection to a network impossibly cumbersome, in all probability they will access
network data wirelessly. This is what is popularly known as pervasive computing
(PvC). Pervasive computing networks are huge distributed systems whose characteristics
differ slightly from traditional distributed systems.
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