**6.2 Introduction**

This Book 3, the first book (the herald) of the Book Series, has been devoted to the practices devised and proven when realizing the first two Polish computer control systems. The example of Poland (the Country) was chosen purposefully: Due many adverse conditions, in particular the unreasonable embargoes imposed on the modern computer equipment, the designers in the Country had to find their own solutions for their projects for much more problems than their colleagues working comfortably in well developed countries. Therefore, the designers of the Country must have learned more than those of the West and could devise, test and prove more and better good ICT design and implementation practices than those working abroad. Due to their very severe technological and political conditions, they could develop and validate their E-service solutions better than the West designers and implementers working in comfortable conditions of designing and implementation.

Book 3 describes the steel-bar mill material flow control system designed, installed, started up and commissioned in the Steel-Bar Mill of the Huta Warszawa Metallurgical Plant, and the Radio-Astronomy centre dish control and data processing system. Both systems were designed of the Odra 1204 computer, designed and developed by the biggest then computer manufacturer in the Country, Elwro. The application of the material flow control system is described. The hardware and software of the systems are discussed. A special attention was put to performance evaluation since, due to various embargoes imposed on the computer equipment, the Odra 1204 computer featured with operating characteristics worse than those of computers available in well developed countries. The metallurgical system development process is described together with the period of commissioning in the field. The descriptions of the system trial run and the final phase for this case study follow. The ethical and Human Behavior (HB) aspects are discussed and the conclusions are given. When realizing this project, LD 4 (the leading designer, Willy Wojsznis) and LD 6 produced the first proof that complex CCS-es could be designed and developed by Polish engineers making use of home hardware and software, in agreement with the E-service domain requirements.
