Editing Systems development life cycle (section)

==== Preliminary system design ====
During this stage of the system lifecycle, subsystems that perform the desired system functions are designed and specified in compliance with the system specification. Interfaces between subsystems are defined, as well as overall test and evaluation requirements.<ref>{{cite book |author=Dr. Joahn Gouws |title=Introduction to Engineering, System Engineering |publisher=Melikon Pty Ltd |year=2007}}</ref> At the completion of this stage, a development specification is produced that is sufficient to perform detailed design and development.

Key steps within the preliminary design stage include:
*Functional analysis
*Requirements allocation
*Detailed trade-off studies
*Synthesis of system options
*Preliminary design of engineering models
*Development specification
*Preliminary design review

For example, as the system analyst of Viti Bank, you have been tasked to examine the current information system. Viti Bank is a fast-growing bank in [[Fiji]]. Customers in remote rural areas are finding difficulty to access the bank services. It takes them days or even weeks to travel to a location to access the bank services. With the vision of meeting the customers' needs, the bank has requested your services to examine the current system and to come up with solutions or recommendations of how the current system can be provided to meet its needs.