user20151: I want to use a board for an Industrial Project, which is based on temperature sensing, sharing and data storage. 
Which board do I use?
Will it be reliable for a long span of time?
Will it be foolproof? 

user27557: Adding to Candice the Cyborg's answer above.
Which board do I use? 
Since its a commericial project you are going to sell then -I would say the right answer is the cheapest ARM or Arduino based board (when migrated to breadboard) to make your project. 
Will it be reliable for a long span of time? 
For reliability ARM and arduino would be reliable-they are after all both professional engineering products-and both can be used to make commercial products. I am assuming can be sure that your software for the ARM or Arduino is not buggy and professional-thus there is no reliability issues from the software. The span of time that the arduino can retain information reliably is given  in the data sheet-I think its about 100 years.
Will it be foolproof? 
Yes if you can be sure that you get the hardware design correct and the software correct-I would imagine this is where a problem would probably come from for your device. 

20151: <p>I want to use a board for an Industrial Project, which is based on temperature sensing, sharing and data storage. </p>

<p>Which board do I use?
Will it be reliable for a long span of time?
Will it be foolproof? </p>
 27557: <p>Adding to Candice the Cyborg's answer above.
Which board do I use? 
Since its a commericial project you are going to sell then -I would say the right answer is the cheapest ARM or Arduino based board (when migrated to breadboard) to make your project. 
Will it be reliable for a long span of time? 
For reliability ARM and arduino would be reliable-they are after all both professional engineering products-and both can be used to make commercial products. I am assuming can be sure that your software for the ARM or Arduino is not buggy and professional-thus there is no reliability issues from the software. The span of time that the arduino can retain information reliably is given  in the data sheet-I think its about 100 years.<br>
Will it be foolproof? 
Yes if you can be sure that you get the hardware design correct and the software correct-I would imagine this is where a problem would probably come from for your device. </p>
