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## First iteration |
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### Features |
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We have three features, the Scara which is the hardware arm that move the marker locally. |
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The end-effector is connected to the end of the Scara and has the task to lift the marker from the board and to release it. |
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And the last feature is the carriage which has the task to move the Scara with the end-effector. |
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Sub feature of the carriage will be some kind of base structure where the Scara will be mounted on. |
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In this base we will also store the different tools. |
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### Selection table |
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We constructed the following table to select a feature. |
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From this we can derive that the end-effector is prefered over the carriage. |
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| Feature | Dependency | Test Coverage | Risk | Time | Risk/Time factor | |
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|--------------|--------------|---------------|--------|--------|------------------| |
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| Scara | End-effector | 3 | medium | medium | 1 | |
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| End-effector | - | 2 | high | medium | 2 | |
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| Carriage | - | 2 | low | medium | 0.5 | |
