This article lists typical evaluation criteria for mechanical constructions that can be used to carry out a benefit analysis for concept or solution selection after project-specific weighting. As always, the criteria must be developed individually in each project and for each product, so this list is to be understood as a suggestion.
Criteria
Acceptance
Are there any reservations about the solution?
Effort
How big is the effort to implement?
Operating cost
How high is the energy / material / time required for the operation?
simplicity
How complex is the solution?
Are failures to be expected?
Ergonomics
Is it difficult to operate?
Are there any burdens from the solution?
Manufacturing
Is it time-consuming to manufacture?
Are fixtures needed?
Function
Are the required functions fulfilled?
How well are the required functions fulfilled?
Are desired functions fulfilled?
Innovative character
Can you set yourself apart from the competition with the solution?
Maintenance
Does the solution need frequent maintenance?
Is maintenance cumbersome?
Customer benefit (or user benefit)
How well is the customer problem solved?
Are customer expectations being exceeded?
Assembly
Is it easy to assemble?
Are there any complicated setting procedures?
Quality
Is it easy to spot errors?
Safety
Do measures have to be taken to ensure safe operation?
Scalability
Can you easily derive other variants?
Can a modularization be made?
Technology
Are the technologies required for implementation known?
Transport
Can it be transported well?
Are modifications necessary for a transport?
Environment
Is it a sustainable solution?
Are there any environmental impacts?
Is recycling possible?
The evaluation criteria for mechanical constructions can be extended by various additional aspects, e.g. with regard to detailed functions which have to be achieved. So maybe you will include the fulfilment of certain regulations or harmonised standards.
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