Design Stratergies


Iterative design

  • Iterative design- cyclic approach
  • Each iteration of a design is tested and evaluated. changes and refinements are then made.
  • E.g Dyson vacuum cleaners- the orginal DC01 was developed as a result of thoudands of different prototypes.

Advantages of iterative design:

  • Due to each iteration being tested/evaluated problems are more likely to occur in early stages instead of the final design.
  • Encourages a focus on the most criticle aspects of a products design.
  • User feedback is constantly being gathered.

Disadvanrtages of iterative design:

  • Designers can be too focussed on one iteration they loose sight of the rest of the design,
  • It can be very time consuming.
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User-centred Design

  • An approach where the needs and wants of the end user are considered extensively at each stage of the design process.

Advantages of user-centred design

  • The end user feels a greater scense of ownership as it is more tailored to suit there needs.
  • By listening to the end user at each design stage means the final product will meet the users' needs/expectations.

Disadvanteges of user-centred Design

  • Requires extra time to meet and interview users and takes designer time to alter the design based on user feedback.
  • Product may not be suitible to sell to a wider audience because it becomes to focused on one user's idea/ preference.
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Systems Thinking

  • The systems based approach is often used when designing electronic or mechanical components to design the overview of the system,
  • Top-down approach- starts with an overview of the overall system in terms of its input process and output sub-systems. Detaols form individual components of each sub-system are considered later.

Advantages of a systems Approach

  • It does not require highly specialist knowledge of electronic or mechanicae components to design the overview of the the system.
  • the top down approach makes it easy to communicate how the system will work to non-technical specialists, such as clients.
  • The system is designed in blocks, so it is easier to find errors or faults in the design.

Disadvantages of a sysrems Approach

Because of the block based design approach, it can lead to the use of componets that are not necessary.

Can lead to larger costs due to unnecessary componets.


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