A1261422920VUWvn

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VLAM-G Testbed

• Designing middleware bridge gap between Grid-
  and application layer
• Enable users to define, execute, and monitor
  their experiments
• location independent experimentation,
• familiar experimentation environment
• assistance during his experiment
• Enable Application developers to develop easily
  modules that can be used in grid like
  environment

• VLAM-G, the Grid-based Virtual Laboratory
  AMsterdam, provides a science portal for
  distributed analysis in applied scientific
  research.
• VLAM-G offers scientists the possibility to carry
  out their experiments in a familiar environment.
  Emphasis in the VLAM-G project is put on the
  development and use of open standards and
  seamless integration of external devices.
• .

• For Grid-aware application developers
• Simple API to migrate legacy applications to
  Grid-aware applications.
• Standard communication mechanism for software
  composition

• For experimental Scientists
• Real-time access/control of remote devices
• Perform geo-distributed experiments among
  multi-institutions
• Real-time access/control to experiment
  parameters state
• Seamless Interact with the Grid layer
• Experiment Design Assistant
• Data-flow-like experiments with modules

• For database interaction
• Dynamic scientific process integration
• Scientific process, application and data
  integration for the extended experimentation
• Complete information handling and data
  manipulation within the virtual laboratory

VLAM-G Front-End
VLAM-G Architecture

• Front-end interface between the end-users and
  the VLAM-G middleware
• RTS the VLAM-G Run Time System runs users
  experiments using the Globus
• toolkit
• Kernel DB the Kernel database keeps all
  information needed to support the end-
• users, the Kernel DB is part
  of the VLAM-G information system
• Assistant helps the users during the design of
  the experiments
• Collaboration a subsystem allowing
  geographically distributed users to
• communicate and
  collaborate in Real-time

The Information management of VLAM-G is supported
by the Virtual lab Information Management for
Co-Operation (VIMCO). It provides services
for ? Information handling and data
manipulation ? Modeling and interlinking
information ? Information storage and retrieval
mechanisms ? Management of VLAM-G
information The VIMCO server provides ?
Defining a base common facility for ?
Information representation ? Data manipulation ?
Supporting the highly heterogeneous environment ?
Hardware / Software ? Domain of scientific
applications

• Data manipulation
• Data manipulation libraries
• VIMCO RTS modules
• Information management modules to support other
  RTS modules and application modules.

User interfaces ? make the VLAM-G functionality
available to its users ? properly support users
of application cases ? fully reflecting the
capabilities of the underlying databases to its
users.
VLAM-G support Kernel DB Kernel DB stores the
administrative information in VLAM-G, e.g. the
available modules information, user information,
etc. Session manager Manages the user sessions in
the highly distributed and heterogeneous VLAM-G
environment through a single log-on.
Advanced Functionality - ARCHIPEL Federated
Information Management The federation/integration
of information from heterogeneous sources in the
scientific domains, that collaborate via
VLAM-G Virtual Organisations Mechanisms for the
creation and operation of Virtual Organisations
supporting the interoperation of autonomous
organisations.