How To Fix Bugs

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Software Projects Inc.

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…” the common term used to describe an error, flaw, mistake, failure , or fault in a computer program or system that produces an incorrect or unexpected result, or causes it to behave in unintended ways. Most bugs arise from mistakes and errors made by people in either a program's source code or its design ...” - Wikipedia

What do we need before we can Fix Bugs ?

1. Understanding the app where the bug lives 2. A reliable “ how to reproduce ” path 3. The line or block of code causing the bug 4. A way to make changes / add debug info, without disrupting any production services

1. Understanding the app where the bug lives ,[object Object],[object Object],[object Object]

2. A reliable “ how to reproduce ” path ,[object Object],[object Object],[object Object]

3. Find the line or block of code causing the bug ,[object Object],[object Object],[object Object]

Applying “ binary sort ” to pinpoint the line / block causing our bug

Step 1: Buggy application Bug is somewhere in here ,[object Object],[object Object]

Step 2: Buggy half Bug is somewhere in here ,[object Object]

Step 3: Buggy line Bug is here ,[object Object]

4. Make changes / add debug info, without disrupting any production services Find if this is a Design , Code or Third-party issue?

[object Object],[object Object],[object Object]

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How To Fix Bugs

1. “ How To Fix Bugs” Mike Peters, Software Projects Inc.

2. My name is Mike Peters .

3. What is a “ bug ”?

4. …” the common term used to describe an error, flaw, mistake, failure , or fault in a computer program or system that produces an incorrect or unexpected result, or causes it to behave in unintended ways. Most bugs arise from mistakes and errors made by people in either a program's source code or its design ...” - Wikipedia

5. Bugs are bad.

6. What do we need before we can Fix Bugs ?

7. 1. Understanding the app where the bug lives 2. A reliable “ how to reproduce ” path 3. The line or block of code causing the bug 4. A way to make changes / add debug info, without disrupting any production services

10.

11. Applying “ binary sort ” to pinpoint the line / block causing our bug

12.

13.

14.

15. 4. Make changes / add debug info, without disrupting any production services Find if this is a Design , Code or Third-party issue?

16.

17. Questions?

How To Fix Bugs

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How To Fix Bugs