quizpool is a system for administering quizzes. The quizzes can be selected from pools of questions, written in "Question Definition Language", according to rules written in "Quiz Definition Language". When a user starts a session, they are presented with a menu of quizzes available. A quiz can then be selected and completed. If the user has not taken that quiz before, the number of chances they are given to take that quiz is randomly generated from the quiz pools for that quiz. This provides an even (or changing) mix of difficult, medium, and easy questions through the various attempts. All output is created from editable HTML template files, which are separate from the program code. This was developed under Apache and Boa.
QuizComposer is a system for quiz composition/presentation/response-evaluation on the Web in any language. It features many response types to questions (checkbox clicks, number intervals, character patterns/regular expressions, ordered and unordered sets, and subsets), re-presentation of incorrectly answered questions with/without hints, test quizzes for limited groups, and packaging of quizzes and sets of quizzes for transportation and exchange.
Flan is a network simulator written in Java. It is meant to be easily expandable by adding new protocols, which are also written in Java. It includes a graphical network construction interface, a RIPv2 (with subnets, that is) protocol, IP packets handling, etc. Flan is based on a continuous time-discrete event simulation engine (with real-time sync).
Cluster Starter Kit for Linux uses Cluster System Management (CSM) software from IBM. With the Cluster Starter Kit for Linux's GUI, portions of CSM can be easily manipulated. Also provided is an easy way to view the status, change the status, or manipulate the conditions of nodes in a cluster.
Java Memory Profiler (JMP) uses the JVMPI interface to track objects and method times in the JVM (Java Virtual Machine). It uses a GTK+ interface to display statistics. The current instance count and the total amount of memory for each class is shown as is the total time spent in each method.
MetaRuby contains miscellaneous libraries (useful now) for a future Ruby-in-Ruby interpreter including Array/Hash/String as abstract ("Hollow") classes, an undo queue, a statistical time-profiler, an event loop, a modular marshaller ("ToSource"), a specification for a modular+reflexive+homoiconic remote call system ("LGRAM"), a declarative type system, a schema for expressing Ruby source code as proper (non-special) Ruby objects, etc.