The Math behind the Incident Aftermath: A Practical Guide to Measuring Incident Impacts

Wednesday, December 07, 2022 - 10:40 am11:40 am AEDT

Ashish Patel and Sriram Srinivasan, PayPal


Despite having world class reliability systems, some incidents do occur making varying levels of impact to our business. One of the many steps involved in the aftermath of the incident is measuring its impact.

Accurate measurement of financial impact due to an incident is an important part of incident management and is needed in real-time for many reasons including regulatory requirements.

However, it's not easy to calculate the impact given the dynamics of the complex distributed system. As SRE is deep-rooted in automation, we have built an Incident Impact Calculation Framework that accurately measures the incident impact using various Statistical and ML Models. It runs in seconds, is completely automated and fits well with our other incident management tools.

Building a real-time, reliable, and robust impact assessment framework is not as straightforward as it seems. Join us in this session to know more about impact assessment, its design, and challenges.

Ashish Patel, PayPal

Ashish is a software engineer at PayPal and works for site reliability platform engineering Team. He develops and maintains tooling that helps PayPal and it's businesses assess their losses and prioritise incidents. His area of interests include SRE, distributed systems and machine learning. In his spare time, he reads and draws unrecognisable cartoons.

Sriram Srinivasan, PayPal

Sriram Srinivasan is a Technical Architect at PayPal, where he is focused on building software tools and platforms in SRE space. He has 20 years of experience building and operating applications and services in production with a focus on reliability. He enjoys solving challenging technological problems. He particularly likes Software Design and Architecture. Besides his day job, Sriram is mentoring women entrepreneurs.

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@conference {284875,
author = {Ashish Patel and Sriram Srinivasan},
title = {The Math behind the Incident Aftermath: A Practical Guide to Measuring Incident Impacts},
year = {2022},
address = {Sydney},
publisher = {USENIX Association},
month = dec,

Presentation Video