METHODS TO IDENTIFY HAZARDS
FAULT TREE ANALYSIS (FTA)
JOB SAFETY ANALYSIS (JSA)
How to perform?
What is FTA?
How to perform?
What is JSA?
FAILURE MODE AND EFFECTS ANALYSIS (FMEA)
click to edit
What is FMEA?
When to perform ?
When you need to understand and improve the failures of a process
When you have a quality improvement goal for a specific process
When you are planning on performing an existing process in a different way
When you are designing a new product, process or service
Why use FMEA?
How to perform FMEA?
Step 1: Planning and Preparation
Step 2: Structure Analysis
Step 3: Function Analysis
Step 4: Failure Analysis
Step 5: Risk Analysis
Step 6: Optimization
Step 7: Results Documentation
A structured approach to discovering potential failures that may exist within the design of a product or process.
To discover failure at its earliest possible point in product or process design.
A systematic procedure that breaks each job/task into key training sequences, identifies safety elements of each job/task step and coaches the employee on how to avoid potential safety hazards.
When to perform?
A job/task has a high injury rate.
A job/task has the potential to cause severe or disabling injuries or illness, even if there is no history of previous incidents.
An employee has a safety concern about a job.
Jobs that are new to your operation or have undergone changes in processes and procedures.
Step 1: Selecting the job to be analyzed
Step 2: Breaking the job down into a sequence of steps
Step 3: Identifying potential hazards
Step 4: Determining preventive measures to overcome these hazards
A deductive procedure used to determine the various combinations of hardware and software failures and human errors that could cause undesired events (referred to as top events) at the system level
Step 1: Identify the Hazard.
Step 2: Obtain Understanding of the System Being Analyzed.
Step 3: Create the Fault Tree.
Step 4: Identify the Cut Sets.
Step 5: Mitigate the Risk.
Why use FTA?
To help identify potential causes of system failures before the failures actually occur. It can also be used to evaluate the probability of the top event using analytical or statistical methods.
Fault Tree Diagram
