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General functions
In a functional analysis, all the relevant functions should be listed and be ranked in the level of important for the functions of the product. The functions should be built out of sentences with verb+noun to define the different functions of the product. When the functions are listed, they can be defined with limitations. [41]
Main function
The first function to define is the main function, this should be narrowed done to one function. It is the function that the product is used for and if this is not fulfilled the product is useless. A coffee cup for example, can be seen to have the main function: provide fluid intake. Thus, if the coffee cup cannot provide the user with intake of fluid, the main function is not fulfilled and it cannot be used for its purpose. [41]
Necessary functions
These functions are the ones that support the main function and without them, the main function cannot be fulfilled. The necessary functions are usually few to the amount. To continue the example of the coffee cup, from the previous step, the necessary function can be; hold fluid, offer filling of fluid. Without these functions the main function with ‘provide intake of fluid’ will not be fulfilled and the product is useless. [41]
Desirable functions
The desirable functions are not necessary to fulfill the purpose of the product. Nevertheless, they can be seen as something desirable, that can help the user of the product. [41] In the case of the coffee cup, one desirable function can be: allow lift, which help the user to drink the coffee but the product will still work even if it cannot be lifted, since it can be solved in another way. Even tough, a handle can be desirable for the user to get a good experience of the product.
Unnecessary functions
These functions are, as they sound, unnecessary and will not affect the products main function at all. [41] Nevertheless, these unnecessary functions can be something extra in the product, that makes it more special. For the coffee cup, it could be; contain cookies, it is not a function that will support the main function. It will be a function that can make the product be seen as special and give the user the ‘extra something’.
How to put up a functional analysis
A functional analysis can be compiled together with the output of the process tree, with the “use”-stage as a starting point. A functional analysis only describes the functions that the product should do. The functions that are depending on manual work are called: user tasks. The user tasks can usually be connected to some supporting part in the product, which can be considered when the designer is developing the product. [39]
When the functional analysis and process tree have been considered, all the functions can be compiled in boxes and be put in a tree-diagram with the main function on top and the sub-functions underneath ordered in how they depend on each other. [40]
Morphological chart
The aim of using a morphological chart is to find all the theoretical possible solution to a problem. The method is conducted by first, define all the parameters that might be the solution to the problems. The parameters must be independent, otherwise the different solutions of the parameters cannot be combined freely. To make sure that the morphological chart does not get too large and unbearable, it should be a small number of parameters. Since, all the parameters are supposed to be combined with each of the other parameters to create concepts. A morphological chart that is 10×10 then gives 1010 solution which will create unbearable amount of concept to try out. By defining only the essential parameters, it will keep the matrix to a feasible size and still give enough defined concepts.
When the parameters are defined with the including variation of solution, a morphological chart is constructed from the parameters and all the variations of the solution of every parameter. This will create a multidimensional matrix.
This can then be used to combine one solution of every parameter to create concepts where all problems are solved. [42]
1 Introduction .
1.1 Background .
1.2 Objectives .
1.3 Delimitations .
1.4 Disposition
2 Theoretical Background
2.1 Design thinking
2.2 IP-class demands .
2.3 Circular connectors
2.4 Materials
2.5 DFMA
2.6 Process methods, molding .
2.7 Design guidelines for molding
3 Method .
3.1 Project planning
3.2 Functional Analysis
3.3 Morphological chart
3.5 Waterproofing
3.6 Anthropometry
3.7 Kansei Engineering
3.8 Design equalize
3.9 Visual brand language
3.10 Moodboard
3.11 Sketching techniques .
3.12 CAD modelling techniques
3.13 3D rendering .
3.14 3D printing .
3.15 Prototypes
4 Approach and Implementation
4.1 The process
4.2 Project planning .
4.3 Given idea of modular sensor
4.4 Emphasize .
4.5 Define requirements
4.6 Circular connectors
4.7 Ideate functional concepts
4.8 Visual brand language
4.9 Ideate design concepts
4.10 Deciding the final general shape
4.11 Final refine process
4.12 Visual Brand Language
4.13 Product family
5 Result
5.1 Is it possible to do a modular solution that fulfill or exceed the specific requirements?
5.2 Which design values express and define CombiQ as a brand?
5.3 How can a product-family be conducted for the brand CombiQ?
6 Conclusion and discussion
6.1 Achieved resul
6.2 How to be continued
7 References
8 Attachments
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Product development and design of industrial sensors
