Empty The Shelf
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Understanding the Digital World
This book fills a serious gap by providing a conceptual framework for understanding the digital world. This world contains large, heterogeneous systems that have to manage dynamic behavior as well as static items and data. Obviously, new, digital methods are needed to deal with the challenges of the digital world. This book introduces such a method with Heraklit, an intuitively simple, albeit powerful framework for modeling, communicating, and analyzing computer-integrated systems. It integrates proven methods for composing modules, describing behavior with local cause and effect, and digitally representing real- and imagined-world items, resulting in a comprehensive, expressive, concerted, technically simple, digital modeling method. This book is structured according to three Heraklit pillars, starting in Part I with the central Heraklit concept of modules, in particular their composition and refinement. Part II covers the second pillar of Heraklit, dynamics, focusing on modules that describe aspects of behavior. Part III focuses on static aspects. In particular, real- and imagined-world items and their symbolic representation are carefully distinguished and related. Together, these three pillars are consolidated in Part IV, integrating all concepts into a powerful formal framework. The book concludes in Part V with a more comprehensive case study of a typical retail business, recommendations on how to start modeling with Heraklit, and useful graphical conventions for the graphical representation of Heraklit models. Heraklit covers the range from the first informal structuring ideas for a computer-integrated system, through the specification of (business) processes, the contributions of people, organizations, and mechanical devices, up to the construction of software. The book is therefore written for students in areas related to system modeling, system design, and system engineering, as well as for professionals in these fields.
DFSMSrmm Primer
DFSMSrmm from IBM® is the full function tape management system available in IBM OS/390® and IBM z/OS®. With DFSMSrmm, you can manage all types of tape media at the shelf, volume, and data set level, simplifying the tasks of your tape librarian. Are you a new DFSMSrmm user? Then, this IBM Redbooks® publication introduces you to the DFSMSrmm basic concepts and functions. You learn how to manage your tape environment by implementing the DFSMSrmm management policies. Are you already using DFSMSrmm? In that case, this publication provides the most up-to-date information about the new functions and enhancements introduced with the latest release of DFSMSrmm. You will find useful information for implementing these new functions and getting more benefits from DFSMSrmm. Do you want to test DFSMSrmm functions? If you are using another tape management system and are thinking about converting to DFSMSrmm, you can start DFSMSrmm and run it in parallel with your current system for testing purposes. This book is intended to be a starting point for new professionals and a handbook for using the basic DFSMSrmm functions. To learn about some of the newer DFSMSrmm functions and features refer to Redbooks Publication What is New in DFSMSrmm, SG24-8529.
Wow! I'm 80!
When I reached my 80th birthday, I was reminded of my thinking when I was in my late 30's and my father was 72. He proudly stated he was a member of SCORE (Service Corps of Retired Executives) and was helping local businesses. I had difficulty believing he was capable of helping others based on his advanced age. In retrospect, I now realize he was almost 10 years younger than I am, so I am documenting, to share with others, what someone in his 80's can do.