SYSTEM LIFE CYCLE Theory
14. Implementation (development)
Just to confuse you, depending on which version of the SLC you look at, implementation can mean either the development phase of the system or the installation phase of the system. For the purposes of the OCR A2 specification, implementation is taken to be the software development stage. |
Once the design stage has been completed the software developers can begin to write the code and actually develop the new system.
The system could either be completely bespoke with every line of code being written by specialist programmers or it could be developed from an 'off-the-shelf' application which is then customised.
The developers will follow the system requirement specification exactly, if it states to put a button 500 px by 100 px, colour #ffefdf in the top left hand corner that is exactly what they will do.
They should not deviate from the specification in any way without consulting the analyst.
During this stage some of the following are developed:
- the tables and data structures
- validation routines
- data capture forms
- data input forms
- automated processing routines i.e. macros
- queries
- the user interface i.e. screen, buttons, help messages
- printing outputs
challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: Implementing a project