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appreciate this is a very very broad question, but we are going round documenting the purpose of over 150 servers in our network for risk assessment purposes. For one of our records management type applications, there are 4 different application front end servers. would this typically be for performance/load balancing, or do you suspect there may be a number of different user interfaces to access the database. Most apps I have ever reviewed from a security perspective have just 1 application/front end server, and 1 backend/database server, so to find a set-up with 4 front end servers fazed me somewhat. The guy who knows about the setup is off sick hence trying to get some possibilities for application specialists here...
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appreciate this is a very very broad question, but we are going round documenting the purpose of over 150 servers in our network for risk assessment purposes. For one of our records management type applications, there are 4 different application front end servers. would this typically be for performance/load balancing, or do you suspect there may be a number of different user interfaces to access the database. Most apps I have ever reviewed from a security perspective have just 1 application/front end server, and 1 backend/database server, so to find a set-up with 4 front end servers fazed me somewhat. The guy who knows about the setup is off sick hence trying to get some possibilities for application specialists here...

application front ends

Software is any set of instructions that directs a computer to perform specific tasks or operations. Computer software consists of programs, libraries and related non-executable data (such as documentation). Computer software is non-tangible, contrasted with computer hardware, which is the physical component of computers. Software written in a machine language is known as "machine code". However, in practice, software is usually written in high-level programming languages than machine language. High-level languages are translated into machine language using a compiler or interpreter or a combination of the two.

Software

Productivity software is application software dedicated to producing information, such as documents, presentations, worksheets, databases, charts, graphs, digital paintings, electronic music and digital video. Most common programs and suites such as Microsoft Office and LibreOffice have their own topics. Office suites, which brought word processing, spreadsheet, and relational database programs to the desktop in the 1980s, are the core example of productivity software, but they can include communications software, personal information managers, groupware and log analysis software.

Productivity Apps

Databases are organized collections of data, most commonly accessed through management systems including schemas, tables, queries and processes that allow users to enter and manipulate the information or utilize it in other fashions, such as with web applications or for reporting purposes.