Me too ! And on the huge esug discussion points to have ^^
Cheers, Cedrick > Le 25 juil. 2019 à 13:09, Marcus Denker <marcus.den...@inria.fr> a écrit : > > Looks very interesting! I will read it (it arrives just in time to be part of > the holiday reading pile…) > > Marcus > >> On 25 Jul 2019, at 11:29, Trygve <tryg...@ifi.uio.no> wrote: >> >> Dear all, >> The final draft of my magnum opus about Personal Programming is now ready >> for review: >> http://folk.uio.no/trygver/themes/Personal/PP-019%20-%20Copy%20(17).pdf >> >> The article's main theme is Personal Programming for everybody with Loke, a >> personal object computer. Its first purpose is to empower laypeople to take >> control over their corner of the Net with its IoT. I have created a >> proof-of-concept implementation as a non-intrusive extension of Squeak >> version 3.10.2, and have used it to demonstrate how a novice uses the Loke >> IDE to create a small and intuitive program. >> >> The article describes the concepts behind Loke .The current Squeak >> implementation should be ported to Pharo and can grow into the preferred >> Pharo-based IDE for laypeople taking control over their information >> environment. >> >> I will appreciate your possible comments before Aug. 31. >> Enjoy >> --Trygve >> >> The article's 43 pages has several high points, I have included one of them >> here: >> ----------- begin extract ------------------ >> C.7.We need a paradigm shift >> >> The history of Western astronomy shows a series of paradigm shifts from the >> geocentric paradigm with its stationary Earth as the center of the Universe >> with its epicycles and other bizarre explanations of what appeared to be >> essential complexities. Astronomy evolved via the heliocentric to the >> current distributed paradigm with its chunks of mass connected by gravity. >> What appeared as essential complexity in one paradigm was easily resolved in >> the next. >> >> It is tempting to look for similar paradigm shifts in computing. Mainstream >> programming has based much of its theory and practice on the CPU-centric >> paradigm exemplified by the von Neumann machine. A memory-centric paradigm >> came in 1960 with the Autokon CAC/ CAM system and its central database >> (Reenskaug, 1973). The solution was obvious, and there must have been many >> similar initiatives without me being aware of them. >> >> It is time to realize that the first two paradigms do not meet our current >> challenges: We are plagued with immensely large, complex, and insecure >> systems that long ago left the realm of human understanding. A recent >> example: Customers found that their bank charged them twice for the same >> transaction. Several weeks after the problem was discovered, the bank >> publicly admitted that they still didn't understand how the problem >> could arise: The complexity of their system was clearly beyond human >> comprehension. The bank has a staff of very competent experts, but they need >> a better foundation for modeling and implementing their sophisticated >> requirements. >> >> Computers can transform, store, and communicate data, (Figure below). The >> essence of the CPU-centric paradigm is that computers are primarily used to >> transform data; they compute. The essence of the memory-centric paradigm is >> that computers are used primarily to store data; they organize applications >> around a shared database. The essence of the communication-centric paradigm >> is that computers are primarily used to exchange messages with other >> computers to make them collaborate to achieve a common goal. >> >> The three paradigms of computing >> <pbeopicbehdhbfmc.png> >> It is time to heed Tony Hoare's plea for simplicity and achieve a better way >> of separating concerns. Mainstream programming should shift to the >> communication-centric paradigm exemplified by the object computer that is >> the foundation for this article. >> >> The communication-centric paradigm has been on the horizon for many years. I >> first met it in Prokon's idea of distributed computers (Reenskaug, 1977), >> but there must have been many other initiatives. A newer example is >> Service-Oriented Architectures (SOA) that, in essence, is >> communication-centric. It didn't meet with immediate success, possibly >> because people tried to apply it within the CPU-centric paradigm where it >> doesn't belong. There are many other examples such as distributed computing. >> And of course, DCI and the IoT itself are, by definition, >> communication-centric. >> >> ----------- end extract ------------------ >> >> >> >
