| Every ProQuest Direct link begins with the
following prefix: |
| http://proquest.umi.com/pqdlink |
| Following the prefix are parameters that
determine the nature and function of the link. Required parameters are described below.
The Search by Word, Search for Publication,
and Article Retrieve links each support other link-specific
parameters. A question mark (?) character separates the parameters from
the prefix. An ampersand (&) character separates each of the
parameters. Each parameter must be in this format: parameter=value. Here
is the prefix, with parameter syntax added: |
| http://proquest.umi.com/pqdlink?parameter1=value1¶meter2=value2 |
| Every ProQuest Direct link contains at
least the following required parameters*: |
| Ver |
The version of the URL
specification used by the link. ProQuest Direct will provide this parameter and its value
automatically. |
| Exp |
The expiration date of the link. |
| Cert |
A block of encoded data (a certificate)
that contains information about the link's function. The certificate includes account
information (account name and password); access control information (such as link password
protection or IP address restrictions); and details about what the link is designed to do. |
|
| *
The order in which parameters appear in the link does not matter. |
| Here is a sample link, with real values supplied
for the required parameters described above. Remember that the certificate contains
encrypted information. |
| http://proquest.umi.com/pqdlink?Ver=1&Cert=9e8d7ek3k318e&Exp=09-30-1998 |
