1. User interface
It contains:
- Screen designs- the design document contains presentation features such as text, colour,highlighting, graphics and animations.
- Dialogs- a dialog is a set of procedures for exchange of information between users and the computer. The design document contains the types of dialogs in the information system under development e.g. menu based, form filling, command language, and natural language dialogs.
2. Data
It specifies whether the data is stored in conventional files or databases. It also specifies the types of files in the information system i.e. whether there are master files (contain records or information of long-term value to the organization), transaction files (contains temporary records which represent the operation of the organization for a particular period of time), archive files (keeps offline storage), and audit files (shows all the operations performed on the system). The design document also specifies the media that is used to store the systems data e.g. tape, magnetic disk, optical disk, etc. Finally the design document specifies how records are organized in the file i.e. whether serial, sequential, random, inverted files or index-sequential organization is used.
3. Process
The design document contains a detailed breakdown of the systems processes showing the steps that constitute the each process. The design document also specifies the input, processing and output involved for each process. Error conditions and the recovery procedures are also specified for each process.
Wilfykil answered the question on March 1, 2019 at 07:59
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