Instructions: Introduction about the assignment topic: Layer of protection analysis (LOPA) LOPA is a recently developed, simplified method of risk assessment that provides the much-needed middle ground between a qualitative process hazard analysis and a traditional, expensive quantitative risk analysis. Beginning with an identified accident scenario, LOPA uses simplifying rules to evaluate initiating event frequency, independent layers of protection, and consequences to provide an order-of-magnitude estimate of risk. Your Task Carry out a literature search (using peer reviewed journal articles, book chapters and credible online resources) to prepare a paper/report (6-7 pages) about LOPA. The report should cover: • Brief history of LOPA • What is LOPA and how different it is from HAZOP and QRA • LOPA methodology and terminology • When and why to use LOPA Note: You should summarise the literature with your own words (explanation and interpretation), not just copy and paste paragraphs from the original literature. You should also refer to literature in the body of report and list them at the end of your report. Use APA citing and referencing style