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Showing posts from August, 2017

JVM Garbage Collection and Optimizations

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Overview When troubleshooting systems for performance-related issues, memory optimizations are a place that needs a deep analysis of what each system stores in the memory, how long those are stored, and access patterns. This post is to keep a note on the background information and valuable points to note in such an effort, specific to Java-based implementations as a deep understanding of the JVM behaviors is very beneficial in the process.

Java language provides much convenience to the developers by taking care of the memory management to a great extent letting the focus be on the rest of the logic. Still having a good understanding of how Java does this underneath, rationalize several best practices we follow in Java implementations and help design the programs better and think seriously on some aspects that can later lead to memory leaks and system stability in the long run. Java Garbage Collector has a big role in this been responsible for freeing up memory by removing memory gar…

Regulatory Technical Standard (RTS) for PSD2 SCA in Plain Text

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Abbreviations Used with PSD2Payment Services Directive 2 -PSD2Regulatory Technical Standard(RTS)- A recommendation requested by PSD2 as a technical guideline to be compliant with PSD2 Strong Customer Authentication -SCAPayment Service User -PSUAccount Servicing Payment Service Provider (ASPSP) - the existing banksPayment Initiation Service Provider (PISP) - a third party entity or a bank itself that can initiate the payment process Account Information Service Provider (AISP) - a third party or a bank itself which can retrieve PSU's account information may be to show an aggregate view of all accounts. Payment Service Providers issuing card- based payment instruments (PSP) - payment service providers that existed in pre PSD2 era who are doing payments through card networks like VISA or Mastercard. Sometime this is also used to refer all PSPs including PISP and AISP.Common and Secure Communication (CSC) Third Party Payment Service Providers (TPP)Access to accounts - XS2A When addres…

The Role of IAM in Open Banking

This presentation discusses on PSD2 standards in detail with the PISP and AISP flows, the technologies involved around the standard and finally how it can be adopted for Sri Lankan financial market.