System development methods
Overview | Traditional | 4GL
If we compare methodologies;
The ideal 4GL should cover the complete system development cycle.
Traditional development
- 1960's batch processing techniques
- Manual design & programming techniques
- The generation of large amounts of paperwork
- The requirements specification, which is often incomplete/incorrect
- Out-of-date standards
- Maintenance to correct errors which have slipped through in the development stages
- Large project teams, which tie up valuable human resources for long periods
- A 'resigned acceptance' that projects cost too much and go on too long
4GL development
With 4GL development the emphasis will be on:
- Prototyping
- User Involvement
- One Person or Small Development Teams
- Faster Systems Development
Proposed Development Approach
Stage 1. Data Analysis
Stage 2. Budget Preparation
Stage 3. Prototype Production
Stage 4. Systems Evolution
[Rev 27/6/97] © 1997 V/2-Com (Verhaart), P O Box 8415, Havelock North, New Zealand.
4GL's - Development software