Indexing, Retrieving, Deleting Documents in Elastic Search (Using Kibana)

Indexing, Retrieving, Deleting Documents in Elastic Search (Using Kibana) Elasticsearch (ELK Stack) – Part 1 I have been playing around with ELK (Elasticsearch, Logstash, Kibana – Elastic Stack) and I though I would paste some of my notes here. The command below will index (insert) a car document (object/row) into “cars” type (table) inside “vehicles” index […]

Linking Jenkins to a Local Git Repository

I wanted to try creating a CI (continuous integration) pipeline using Jenkins at home for fun 🙂 I launched IntelliJ IDEA by jetbrains and created an empty test project. Then I added this project to Git. In case you don’t know how, below is how you can create a Git repository for you project in IntelliJ […]

Asana for Task Management

Have you tried Asana? We did and we liked it… When you are just starting a new project you may not always have all the tools at your disposal. Sometimes it takes time to acquire them tools. Tools like JIRA. Especially if you are working for a big IT company where things may go slow […]

Difference Between URI, URL and URN

What is a URI? URI (Uniform Resource Identifier) is a series of characters to identify a resource. It has the following format: scheme:[//[user[:password]@]host[:port]][/path][?query][#fragment] Here the “scheme” is mistaken for protocols. Schemes are not protocols. Many schemes have been designed to work with protocols, yes, bu it is not true for all schemes. Scheme part tells […]

Authentication vs Authorisation

I see that many people are confused by the meaning of authentication and authorisation. People use the two interchangeably. They tend to use both authentication and authorisation for the same thing. But actually there is a difference between the two. Authentication can be thought of as the process of granting a user access into some […]

Difference Between Hashing and Encryption

When it comes to security, you will hear a lot of people talking about things like hashing and encryption. But what are they? What are the differences? What are the practical approaches when it comes to choose which one to use? In this post, I will try to give a brief explanation about both concepts and try […]

Requirements Management with iConcur Axiom

I am a software engineer and I frequently develop software individually (other than my regular job) in my spare times. Recently, I decided to develop a program with rather large scope compared to my previous freelance works. Until this time, when I was working on my own, I held all the necessary documentation that I need […]

What are Use Case Diagrams? Why Do We Draw Them?

This will be the last post of 2013. I wish you all a happy new year. I see that many people have trouble when it comes to use case diagrams. Many people think they know what a Use Case Diagram means or what kind of information it is meant to present, but actually half of […]

What is the Difference Between Functional and Non-Functional Requirements

I see that people can get confused easily when it comes to differentiate functional and non-functional  requirements. Let's quickly see the differences. Functional requirements concentrate on achieving a task without paying attention to the quality factors that users of a system might expect implicitly. On the other hand, non-functional requirements are about how well a […]

Composition Versus Aggregation

If you are a Systems Engineer or a Software Engineer you are probably familiar with UML diagrams and notations used in them. Today I realised that there might be many people confusing Composition and Aggregation relations between entities/objects. Composition: You can think of Composition simply as a “part-of” relation between 2 entities/objects. When an object […]