By using this design guide the designer and manufacturer is expected to improve the accuracy of prototypes and should aim for a ‘right first time’ approach.
Fundamental to this approach is the re-use of approved parts, either dc or retailer approved and to this end we recommend using the dc design library for components and parts.
During the briefing the designer is expected to establish the display review and approval process and when dc testing will be carried out.
The testing must be carried out before production as the certification provided will be for ‘type’ approval and therefore every unit thereafter will need to match the certified display.
In order to complete a thorough analysis before the final approval it’s recommended to trial units instore or in application in order to get feedback from instore staff, users and customers.
During the Creative Design process there may be a need to create a mock-up of the display equipment to ensure its dimensionally correct and ergonomically fit for use. At this time there may be no electrical equipment and the materials used may not be as specified for production.
Consideration should be given to the materials used for mock-ups so they can be easily recycled later.
As the design develops through the Engineering Design stage there will be a need to test that the design meets all the basic requirements of form and function as well as the technical requirements set out for dc certification.
The prototype should be made with all the intended production materials and electrical components required.
The key areas of assessment will include:
It may be determined after full assessment and testing that the display does not pass all criteria and therefore a pre-production display must be created before production.
It’s recommended that before a full production run a ‘First-off’ of the display is created. This may be due to small design changes following the protype but also due to tooling or materials.
The designer or manufacturer may decide that due to limited time or production capability, mock-ups and protypes are not needed and they may go straight to first off.