PRCS is an attempt to provide a version-control system for collections of les with a simple operational model, a clean user interface, and high performance. PRCS is characterized by the use of project description les to input most commands, instead of a point-and-click or a line-oriented interface. It employs optimistic concurrency control and encourages operations on the entire project rather ...

Looking at the distribution of the costs of IT, the largest part of the budget is allocated to maintenance and enhancement projects. New development comprises between 30 to 50% of IT costs. Functional size measurement methods are mostly used for new development only. With some extensions to common size measurement methods like Function Point Analysis [1] and COSMIC Full Function Point [2] one c...

51 Interactive Data Analysis: The Control Project D ata analysis is fundamentally an iterative process in which you issue a query, receive a response, formulate the next query based on the response, and repeat. You usually don't issue a single, perfectly chosen query and get the information you want from a database; indeed, the purpose of data analysis is to extract unknown information, and in ...

This paper presents the mean 1963-64 data for each factory participating in the Mutual Milling Control Project. The results confirm the trends pointed out in the second Progress Report. An example of the increase in efficiency to be gained by the installation of a shredder is cited and discussed. An attempt is made to point out factors which may effect the drop in purity from first to last expr...

The injector Linac control system for SPring-8 is under development and the first trial will be held soon for testing total performance. We designed this system using object oriented methodology to integrate the operator environment and the database architecture and for easy maintainability. A disadvantage of the object oriented approach is a long lead time for abstraction, modeling and definit...

On-line interpretation and visualization of project data are gaining increasing importance on the long road towards predictable and controllable software project execution. In the context of software development, only few techniques exist for supporting these tasks. This is caused particularly by the often insufficient use of engineering principles in the software development domain. Beyond tha...

This paper introduces the OROCOS project (www. orocos.org), that aims at becoming a general-purpose and open robot control software package. OROCOS follows the Open Source development model that has been proven to work in many other general-purpose software packages, such as Linux, Apache, Perl, or LTEX. The paper focuses on the long-term vision of this start-up project, motivates which strateg...

This paper describes a mobile robot that can enter a circular arena, gather a ock of ducks and manouvre them safely to a speci ed goal position. A minimal simulation model of the ducks' ocking behaviour was developed and used as a tool to guide the design of a general ock-control algorithm. The algorithm was rst tested in simulation then tranferred unchanged to a physical robot which succeeds i...