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Refinements should be focused on the areas in which the initial design failed to meet or only partially met criteria within the specification (i.e. a design idea fails to meet 3-4 key specification criteria would require 3-4 potentially smaller and more focused pieces of research to support resolving these issues) . A priority for research should be given to performance/ functionality criteria, and meeting the users’ identified needs and wants, so that valid testing can be carried out with the final prototype.  \n2.3b Consideration of the design as a whole, rather than focusing on component parts in isolation.  \nStudents are required to make refinements which support an improvement against the specification criteria, as outlined above. In making changes to parts of the initial design, it is anticipated that this will in turn improve the whole design and require an ongoing consideration for intended and unintended consequences of refinements. (e.g. by changing the material, the construction approach will also likely need to change) .  \n© Pearson Education Ltd 2023 . Copying permitted for purchasing institution only. This material is not copyright free.  \nVersion 2  \nGCSE Design and Technology – NEA Guide  \n2.3c Modelling/simulation used to test the features of the design ideas.  \nStudents will gain credit for applying CAD, sketching, physical modelling and written evidence appropriately throughout development, which alongside 2.1 evidence, will inform the marks awarded for 2.4 Communication. If the student did not sketch any initial design ideas in 2. 1, they must include sketches in 2.3 in order to avoid a negative impact on marks for 2.4 associated with graphical communication.  \nPhysical modelling and/or application of CAD will support modifications that the student can identify as helping the design to meet specification criteria (i.e. not just modelling for the sake of modelling) . Students can use modelling and CAD to generate calculations for materials, decide on processes, and choose between techniques to name some ideas. To support the making of a final prototype, the student may want to create any of the following:  \n• 3D visualisation.  \n• 2D plans, patterns or templates.  \n• Diagrams.  \n• Use of mathematics for calculations (such as surface area, volume, weight, length, etc) .  \n• Engineering or working drawing.  \n• A cutting list/bill of materials  \n• CAD files for CAM.  \n2.3d Analysis and evaluation of the design ideas, to inform choice as to the chosen design to take forward.  \nStudents are required to communicate how they are developing their design idea towards a final design, through analysing their options and evaluating their choices as an ongoing activity. This should include making appropriate, purposeful judgements and decisions that improve the design towards meeting the specification, and may appear as annotation in this section.  \n2.3e Modification of design ideas to produce the chosen design, which meets the design brief and product specification.  \nStudents should present a “final design” within the evidence for development. The chosen design should be recognisable as:  \n1. Being a response to the contextual challenge and design brief.  \n2. Aiming to meet the specification criteria and the user wants/needs.  \n3. Be a design that appeared within the initial design ideas and has been improved through development.  \n4. A ","cbCaiddPwufg1Gxd","https://ap.wps.com/l/cbCaiddPwufg1Gxd","pdf",301335,"English","# 2.3 Development of design ideas into a chosen design\n## What the NEA content requires students to do\n## 2.3a Consideration of user group needs and preferences\n## 2.3b Consideration of the design as a whole\n## 2.3c Modelling/simulation used to test features\n## 2.3d Analysis and evaluation of design ideas\n## 2.3e Modification to produce the chosen design\n## 2.3f Use of calculations for materials and technical details\n## How this assessment grid differentiates student evidence of development","[{\"question\":\"What additional research should students carry out for 2.3a?\",\"answer\":\"Students should conduct further research that refines the initial idea toward a final design for prototyping. Research should focus on areas where the initial design failed or only partially met specification criteria, with priorities for performance and functionality to enable valid testing.\"},{\"question\":\"What does 2.3b require students to consider?\",\"answer\":\"Students must refine the design by considering it as a whole rather than isolated components. Changes to parts are expected to improve the overall design and include reflection on intended and unintended consequences.\"},{\"question\":\"How should students use modelling and CAD for 2.3c?\",\"answer\":\"Students should use CAD, sketching and physical modelling appropriately to test design features. Modelling/CAD should support modifications that help meet specification criteria, and may be used to create calculations, drawings, and visualisations to support the final prototype.\"}]","GCSE Design and Technology - NEA Guide - Development of design ideas into a chosen design (2.3) | PDF",1792466833]