SIS Architecture and Modules
Carrera Corp. is the hub of a series of computers running SIS. Each
computer has a complete set of data for the lending institution(s) it
serves. Remote computers may run either stand-alone or on a network.
Carrera's network holds the master database and contains all records
held by each remote computer.
SIS generates a set of transfer files so data replication can be
accomplished through a variety of means. Data replication is based on
the "loose synchronization" model, and requires a regular bi-directional
transfer of data to keep the databases identical. Consequently, the
remote computer almost always has the most current information. Each SIS
module can generate and/or apply these files. The preferred method of
file transfer is via high-speed modem on a standard telephone
connection. MS-DOS diskette transfers are possible but introduce many
opportunities for failure. Internet transfers are planned but not
- SI Menu: This module is common to all systems. SI Menu
auto-detects other modules pesent on the system and enables their
functions. Selection of these modules and control of certain system
functions are the primary functions of SI Menu.
- Loan Entry: This module is common to all systems. All
loan data is available for editing, and may be accessed though a variety
of indexes: Borrower Name, Co-Maker Name, Loan Number, Vehicle ID
Number, and Current Cycle. A view-only function is available for both
SIS' Loan file and its History file. If the Premium Accounting module is
enabled, this module provides data entry capabilities not accessible to
- Loan Tracking: This module is common to all systems.
Regular "processing" is carried out here, and is responsible for
generating notices and single interest policies.
- General Reports: This module is common to all systems.
Many pre-defined reports are available, such as Borrower List and Daily
- Utilities: This module is common to all systems.
- Account Configuration: This module exists only at Carrera
Corp. It controls the parameters that specify the lender's unique
- Edit Rate Charts: This module exists only at Carrera Corp.
- Edit Refund Tables: This module exists only at Carrera Corp.
- Tape Update: A software interface for mainframe or
mini-computer systems allows SIS to synchronize itself to the loan
records of the lending institution's own computer system for increased
automation. This interface reads files generated by the lender's system,
and may be transfered via modem, 9-track tape, MS-DOS diskettes, and
eventually, the Internet. Clear advantages of using this feature are
automatic addition/deletion of loans and automatic update of borrower
information and loan balances.
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This page last updated 4.6.98