Discipline 3 (D3) of the 8D Troubleshooting Methodology, "Contain Interim Actions," focuses on implementing and verifying temporary fixes to protect the customer from the problem's effects until a permanent solution is found. This involves two primary activities: first, developing immediate, controlled actions to isolate the problem and prevent it from spreading or affecting more users (D). Second, it often involves creating a workaround, which is an action that bypasses the issue to provide a temporary restoration of service for the affected users (A). These actions are not permanent solutions but are crucial for business continuity.

B. Capture potential triggers. This action is part of D2 (Describe the Problem), where all specifics of the issue, including what triggers it, are gathered and documented.

C. Evaluate systems and components. This is a core activity of D4 (Identify and Verify Root Cause), where potential causes are tested to find the true root of the problem.

E. Develop a hypothesis based on the outcome of the various controlled actions and the system’s reactions. This is the central process of D4 (Identify and Verify Root Cause), where theories about the problem's origin are formulated and tested.

1. Avaya Aura® Core Components Support (72301X) Study Guide. (Internal Avaya Learning Document). Section: "Troubleshooting Methodology," Subsection: "The 8D Process," Discipline D3: "Develop Interim Containment Actions." This section explicitly states that D3 involves defining and implementing containment actions to isolate the effects of the problem. It describes these actions as "band-aids" or workarounds intended to protect the customer.

2. Avaya Aura® Communication Manager Troubleshooting and Maintenance Guide, Release 8.1.3. (Document ID: NN43001-701, November 2020). Chapter 1: "Introduction to Troubleshooting," Section: "Structured Troubleshooting Methodologies." This guide outlines the principles of structured problem-solving, emphasizing the need to contain a problem (isolate its effects and provide temporary workarounds) before proceeding to root cause analysis.

3. Ford Motor Company, "Team Oriented Problem Solving (TOPS) - 8D," (Global 8D G8D-01, 2012). While a Ford document, the 8D methodology is a global standard that Avaya has adopted for its support processes. Section 4.3, "D3: Implement and Verify Interim Containment Action(s)," defines the purpose as isolating the effect of the non-conformance from any internal/external customer. This aligns directly with options A and D.