If you are looking for the DO178B objectives for an upcoming job interview, you have landed at the right place.

In this article, I have compiled all the DO178B objectives in one place for your reference. These questions are constantly being asked in most of aerospace companies for entry-level and experienced level positions. I have spent many hours compiling this.

So, I hope you will enjoy this article – DO178B Objectives. I hope this would be helpful for both fresher and experienced professionals.

After reading the complete article if you think that I have missed any other aspects, please write in the comment box. It will be definitely helpful for others. Good luck with your interview!

Q1) Can you list the objectives of the Software Planning Process?

The objectives of the Software Planning Process are defined in the DO 178B Table A-1. There are seven objectives for the software planning process and the applicability of the objective depends on the software level.

For example, Objective #1 in the below table is applicable to Software Levels – A, B, C, and D. But, Objective #2 is only applicable to Software Levels – A, B, and C. There are no objectives defined for Level-E software in DO 178B.

Q2) Can you list the objectives of the Software Development Process?

The objectives of the Software Development Process are defined in the DO 178B Table A-2. There are seven objectives for the software development process and the applicability of the objective depends on the software level.

In the case of Table-2, all the objectives are applicable for Level-A, B, C, and D software. There are no objectives defined for Level-E software in DO 178B.

Q3) What is DO 178B Table A-3?

The DO 178B Table A-3 contains the objectives of the “Verification of Outputs of Software Requirement Process”. There are seven objectives in Table A-3 and the applicability of the objective depends on the software level.

For example, Objective #1 in the below table is applicable for Software Levels – A, B, C, and D. But, Objective #3 is only applicable for Software Levels – A, and B. There are no objectives defined for Level-E software in DO 178B.

Q4) What is DO 178B Table A-4?

The DO 178B Table A-4 contains the objectives of the “Verification of Outputs of Software Design Process”. There are 13 objectives in Table A-4 and the applicability of the objective depends on the software level.

For example, Objective #1 in the below table is applicable for Software Levels – A, B, and C. But, Objective #3 is only applicable for Software Levels – A, and B. There are no objectives defined for Level-E software in DO 178B.

Q5) What is DO 178B Table A-5?

The DO 178B Table A-5 contains the objectives of the “Verification of Outputs of Software Coding and Integration Process”. There are 7 objectives in Table A-5 and the applicability of the objective depends on the software level.

For example, Objective #1 in the below table is applicable for Software Levels – A, B, and C. But, Objective #3 is only applicable for Software Levels – A, and B. There are no objectives defined for Level-E software in DO 178B.

Q6) What is DO 178B Table A-6?

The DO 178B Table A-6 contains the objectives of the “Verification of Outputs of Integration Process”. There are 5 objectives in Table A-6 and the applicability of the objective depends on the software level.

For example, Objective #1 in the below table is applicable to Software Levels – A, B, C, and D. But, Objective #3 is only applicable to Software Levels – A, B, and C. There are no objectives defined for Level-E software in DO 178B.

Q7) What is DO 178B Table A-7?

The DO 178B Table A-7 contains the objectives of the “Verification of Verification Process Results”. There are 8 objectives in Table A-7 and the applicability of the objective depends on the software level.

For example, Objective #1 in the below table is applicable for Software Levels – A, B, and C. But, Objective #5 is only applicable for Levels – A software. There are no objectives defined for Level-E software in DO 178B.

Q8) What is DO 178B Table A-8?

The DO 178B Table A-8 contains the objectives of the “Software Configuration Management Process”. There are 6 objectives in Table A-8 and the applicability of the objective depends on the software level.

In the case of Table-8, all the objectives are applicable for Level-A, B, C, and D software. There are no objectives defined for Level-E software in DO 178B.

Q9) What is DO 178B Table A-9?

The DO 178B Table A-9 contains the objectives of the “Software Quality Assurance Process”. There are 3 objectives in Table A-9 and the applicability of the objective depends on the software level.

For example, Objective #1 in the below table is applicable for Software Levels – A, B, C, and D. But, Objective #2 is only applicable for Software Levels – A, and B. There are no objectives defined for Level-E software in DO 178B.

Q10) What is DO 178B Table A-10?

The DO 178B Table A-10 contains the objectives of the “Certification Liaison Process”. There are 3 objectives in Table A-10 and the applicability of the objective depends on the software level.

In the case of Table-10, all the objectives are applicable for Level-A, B, C, and D software. There are no objectives defined for Level-E software in DO 178B.

Conclusion:

DO178B or DO178C is a very important guideline document for any software that is being developed for civil aircraft. I have tried to put together all the DO 178B Objectives in one article. I hope that this article would help you in understanding the DO 178B objectives.

However, there could be areas that I might have missed here. Please feel free to comment below, if you think you need further explanation for DO 178B objectives.

Here is the summary of all the tables mentioned in the DO 178B document.

I have also compiled another detailed DO178C table in one document along with the explanation and created a pdf copy of it.

If you want to get the FREE pdf copy, please comment your email ID in the below comment box, and I will send you the copy. This document would definitely give you a far better understanding of the DO 178B objectives.

Hopefully, this article could help you!

Good luck with your interview.

Cheers!