When people work together to build a product (like a phone app or a website), they need a good plan. Scrum is a very popular way to work. In Scrum, the team is small and simple. There are no "Project Managers" or big bosses telling everyone how to work. Instead, there are only three roles. … Continue reading The Scrum Team: Roles and Responsibilities →

Do you want to make your team work well? Understanding Scrum helps. Scrum has five main parts. These parts are meetings or times to work. They help teams check their work and make it better. Here is a simple look at the five main parts from the picture: The Sprint: This is 2 to 4 … Continue reading About Scrum and Agile: The 5 Main Events for Teams →

Short summary Small businesses often have little money, few workers, and little time. The owner may need to do many jobs at the same time: sell products, talk to customers, check money, manage workers, and control stock. AI can help with these tasks. AI does not replace the owner. It helps the owner work faster, … Continue reading AI and Digital Change for Small Businesses: How to “Pay Less, Do More” →

A Simple Business-Friendly Guide with Examples Large language models and GenAI apps are now used in customer service, internal support, search, automation, and content creation. But once AI is connected to real business data and real business actions, the risks become much bigger than “the answer may be wrong.” OWASP’s 2025 Top 10 for LLMs … Continue reading 2025 Top 10 Risks for LLM and GenAI Apps: A Simple Cookbook for Business Teams →

A Simple Guide for Business and Non-Technical Readers OWASP says the Top 10:2025 is the current release of its main awareness document for web application security. The 2025 list is: A01 Broken Access Control, A02 Security Misconfiguration, A03 Software Supply Chain Failures, A04 Cryptographic Failures, A05 Injection, A06 Insecure Design, A07 Authentication Failures, A08 Software … Continue reading 2025 OWASP Top 10 Web Application Security Risks →

1. Introduction This document summarizes knowledge and experience on database query optimization, focusing on using EXPLAIN, EXPLAIN ANALYZE, table access methods, and index optimization. It's suitable for developers and DBAs who want a deep understanding of how databases execute queries and techniques to improve performance. 2.1 Execution Plan with EXPLAIN The execution plan reveals how … Continue reading How PostgreSQL Executes Your Queries: EXPLAIN, ANALYZE, and Index Strategies →

I. Diagram II. Detailed Steps 1. Setup the SQS dead-letter queues Step 1: Create the SQS queue with the name ap-demo-main. Step 2: Create the second SQS queue with the name ap-demo-main-DLQ. Step 3: Back to the queue ap-demo-main, go to the Dead-letter queue, then select the Edit button. Step 4: On the new screen, … Continue reading Using SQS dead-letter queues to replay messages →

For the detailed of lambda function, please visit the link: https://docs.aws.amazon.com/lambda/latest/dg/welcome.html Step 1: Install the .NET CLI Templates for AWS Please use the following command below to install: dotnet new -i Amazon.Lambda.Templates Step 2: Install The AWS .NET Mock Lambda Test Tool Please visit the page below for more information: https://github.com/aws/aws-lambda-dotnet/blob/master/Tools/LambdaTestTool/README.md Step 3: Create the … Continue reading Create and deploy the first simple lambda via the MS Visual Studio. →

I. IntroductionThis guide will walk you through setting up the essential tools and environment for working with AWS. From creating a free-tier AWS account to configuring the AWS CLI and installing development toolkits, each step is designed to get you up and running quickly. Whether you're using Visual Studio, VS Code, or JetBrains Rider, this … Continue reading Setup AWS tool on your local machine. →

I. Introduction Elasticsearch and Kibana are powerful tools often used together to monitor, read, and analyze system logs. They provide a robust solution for logging and monitoring, especially in environments with large amounts of data. II. How do you set up Kibana and Elasticsearch on the local machine? Step 1: Please visit these links below … Continue reading How do you set up Kibana and Elastic search on the local machine to read the log files? →