Difference between revisions of "Design Constraints Analysis"
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A design constraint can be seen as a non-functional requirement the final product should meet. | A design constraint can be seen as a non-functional requirement the final product should meet. | ||
| − | 'Examples:' | + | Another perception is that constraints lead to requirements. (Constraints cannot be tested or verified, requirements can) |
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| + | '''Examples:''' | ||
Suppose you have electrical wiring somewhere and the current that flows is a 100A. the tables will tell you that you cannot use a #16 size wire - it will | Suppose you have electrical wiring somewhere and the current that flows is a 100A. the tables will tell you that you cannot use a #16 size wire - it will | ||
Revision as of 06:02, 24 September 2012
What
Design constraints are boundaries within who the system is designed, or limiting parameters
Constraints limits the conditions you can design from. This could be on the systems form or function or could be in the technology to be used, materials to be incorporated, time taken to develop the system.
A design constraint can be seen as a non-functional requirement the final product should meet.
Another perception is that constraints lead to requirements. (Constraints cannot be tested or verified, requirements can)
Examples:
Suppose you have electrical wiring somewhere and the current that flows is a 100A. the tables will tell you that you cannot use a #16 size wire - it will simply burn out and/or cause a fire.
Another example would be tensile strength in steel when building a structure. One has to be well within in a safe limit before the steel shears or starts to deform and causes the structure to crumble....
If you have a deadline, eg. may 16 - 2013, this is a time constraint, that can be used to layout a timeschedule, tasks and assign manpower
