<2009 Survey, Section 6 User Survey 2009 Results 2009 Survey, Section 8>

Section 7 - Gateways...


7.1 - How important is it for an SJTAG standard to provide a defined access mechanism for gateway devices?

(board TAP access control devices, scan chain selection devices or device instrumentation gateways)

  1. Essential
  2. Important
  3. Desireable
  4. Unnecessary
  5. No opinion

Clearly, there is a broad opinion that SJTAG needs to address gateways and the methods of accessing them. No doubt there is a belief here that standardization will lead to more consistent tool behaviour and enhanced support for gateways within device vendor tools. 

<2009 Survey, Section 7 User Survey 2009 Results 2009 Survey, Sections 9, 10>

Section 8 - The cost of SJTAG...


8.1 - Which of these possible uses for JTAG within a system do you think you would use?

  1. Structural Test
  2. Configuration/Tuning/Instrumentation
  3. Software Debug
  4. Built-In Self Test
  5. Fault Injection
  6. Programming/Updates
  7. Root Cause Analysis/Failure Mode Analysis
  8. Power-on Self Test
  9. Environmental Stress Test
  10. Device Versioning

The chart layout makes the differences appear more pronounced than they really are. Structural Test, BIST, Programming and POST are the unsurprizing top scorers here, while Software Debug and EST bring up the rear, probably as there are Use Cases that either won't generally have been considered or that are perceived as difficult. 

<2009 Survey, Section 8 User Survey 2009 Results >

Section 9 - Widening the scope...


9.1 - Before you took this survey, what was your perception of JTAG?

  1. JTAG is mainly/only a test interface
  2. JTAG is mainly/only a programming interface
  3. JTAG is mainly/only an emulation interface
  4. JTAG can be used for several purposes
  5. No particular view on JTAG

The responses here, when compared to those in Q8.10, reinforce the conclusion that while the respondents on this survey are more sophisticated users with a broader knowledge of JTAG and it's applications, they are acutely aware of others who are less well informed.