HearAid Version 5.0

Firebird Database Engine

Firebird Database Engine

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Firebird Database Engine

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HearAid 5.0 uses the Firebird 1.5 database engine. Firebird can be run in three modes:

 

1.Single User or LOCAL Mode. This mode provides the fastest performance and does not require any additional installation, but only allows one user at a time to connect to the database i.e. two or more users cannot run HearAid at the same time. In addition, there is no database security and users are not required to go through the Database Login screen when HearAid starts.

 

Single User Mode is best suited for situations where HearAid is only being installed on a single computer, there is no network in your office and there are no security concerns.

 

2.LOCALHOST Mode. This mode is similar to Single User mode, where HearAid is only being used/accessed from one computer, but that computer is connected to a network. In LOCALHOST mode the Firebird Server software is installed and database security applies: users are required to log in and only the SYSDBA user can perform potentially dangerous or sensitive functions. It also allows other users or programs to connect to the database simultaneously. This mode requires that either the TCP/IP or NetBEUI network protocol be installed on your computer.

 

LOCALHOST Mode is best suited for situations where HearAid is only being installed on a single computer, there is network in your office and you want to enforce controlled access to your database.

 

3.Client/Server Mode. This mode provides the safest and most secure database access to networked users. In this mode, HearAid and Firebird Server are installed on a "server" computer on the network. Ideally, this computer is not in active use (i.e. users do not sit at that computer and use it all the time) and is connected to an uninterruptible power supply (UPS).

 

The Firebird installer (Firebird1_5.exe on the installation CD) program will install the Firebird software in C:\Firebird and enable LOCALHOST or Client/Server modes. If Firebird is not installed separately HearAid 5.0 can only be run in LOCAL mode.