Reliability is defined as the probability of failure-free software operation for a specified period of time in a particular environment.

Reliability testing is performed to ensure that the software is reliable, it satisfies the purpose for which it is made, for a specified amount of time in a given environment and is capable of rendering a fault-free operation.

• Acceleration testing

• Temperature Cycle

• High Temperature Operating Life (HTOL)

• Temperature Humidity Bias/Biased Highly Accelerated Stress Test (BHAST)

• Autoclave/Unbiased HAST

• High Temperature Storage

• Electrostatic Discharge (ESD)
  

Standard for reliability test, for example:

Environmental testing of electric and electronic products - Part 2: Test methods, test FC and guidelines: vibration (sinusoidal) GB / T 2423.10-2008 / IEC 60068-2-6:1995

Environmental testing of electric and electronic products Part 2: Test methods Test Fh: broadband random vibration (digital control) and guidelines GB / T 2423.56-2006 / IEC 60068-2-64:1993

Environmental testing of electric and electronic products Part 2: Test methods Test fi: vibration mixed mode GB / T 2423.58-2008 / IEC 60068-2-80:2005