D3.js – An Open Source Big Data Tool

D3.js is an open source JavaScript library which allows you to manipulate documents that display Big Data. D3 stands for Data Driven Documents. D3 has been designed to be extremely fast, it supports Big Data datasets, and it has cross-hardware platform capability. D3.js is used to create dynamic graphics using Web standards like HTML5, SVG and CSS.

Apache Drill – An Open Source Big Data Tool

Apache Drill is an open source software framework that supports data-intensive distributed applications for interactive analysis of large-scale datasets. The main feature of Drill is it is able to scale to 10,000 servers or more and to be able to process petabytes of data and trillions of records in seconds.

TCExam Assessment System

Open Source Examination Tool

TCExam is an Open Source Computer-Based Assessment system. This app allows teachers to administer digital assessments (computer-based tests) that students can access from a wide variety of devices. It's Web-based and provides scheduling and reporting tools to assist the instructor.

iTEST / iTestServer

Open Source Examination Tool

iTestServer offers an easy way to organise a database of questions and answers. It makes use of colours in a way that makes this even easier. It features a simple rich text editor that allows you to format your questions just the way you like. iTestServer is also used as the server, to which client computers then connect in order to retrieve a test. It can save test sessions for later viewing and allows you to view and print statistics.