Digital Repository Services
Access Management Services
Name Resolution
Service
Digital
Repository Services
Digital Repository Service (DRS) The Digital Repository Services
(DRS) system provides Harvard affiliated owners of digital
material with a storage and retrieval system for their collections.
These services and facilities include:
- an electronic storage facility within which
the digital objects created or purchased by Harvard agencies
reside,
- management of administrative and structural
metadata associated with stored objects,
- preservation policies and procedures to
insure the continued usability of stored objects, and delivery
of an object to a registered or known software application
(e.g., an online catalog, a web browser).
More information is available at the OIS
web site: http://hul.harvard.edu/ois/systems/drs/
Access
Management
Access Management Service
(AMS) The HUL Access Management Service provides Harvard ID/PIN-based
access control in front of web-accessible electronic resources.
AMS authenticetes user identities and common user profile
information is made available to requesting systems. AMS offers
a single authentication challenge per browser session, regardless
of which resources or systems are accessed during that session
Access management for network-accessible
resources encompasses serveral steps: user authentication,
user profiling, and resource-specific access protocols.
Authentication is concerned with validating
the user identity associated with a request to perform some
operation on some resource. This is distinct from the question
of authorization, which associates a set of privileges with
an authenticated identity. Privileges are generally assigned
on the basis of a user profile, which provides a set of characteristics
associated with an authenticated identity. Authentication
answers the question, "Are you who you say you are?"; profiling
answers the question, "What are your characteristics?"; and
authorization answers the question, "Are you permitted to
do what you have requested to do?"
A technical overview of the Access Management Service (AMS) is available on the OIS web site.
Name
Resolution Service
The Name Resolution Service (NRS) is a comprehensive service
for creating, maintaining, and resolving persistent identifiers
which are location-independent names for network-accessible
resources. Name resolution is the process of mapping from
a given abstract name to a URL that represents a particular
instantiation of the named resource. Persistent identifiers
provide curators and researchers with confidence that the
URL they cite will always work.
The NRS is comprised of two separate sets
of services and servers:
1. An Oracle-based administrative service
that manages the metadata necessary to perform naming services;
and
2. An HTTP-based resolution service
that performs naming resolution.
More information is available at the OIS web
site: http://hul.harvard.edu/ois/systems/nrs/
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