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This book uses case studies to show how and why eight social service organizations adopted computers. Computerized information systems can be destructive or constructive for organizations and staff. However, the impact of a system cannot be predicted from its logical design alone: one must analyze how well the design fits the needs, interests, and existing practices of those who are likely to use it.
Activity monitoring and automatic alarm generation in AAL-enabled homes by Martin Flöck Pdf
In this work, novel contributions towards the emerging field of Ambient Assisted Living (AAL) are introduced. AAL is a concept envisioned in the early 2000s by the European Commission, aiming at supporting specifically senior people by means of technology and thus helping them to lead independent and self-determined lives in their accustomed surroundings as long as possible. Modern home automation technology is believed to be the key to providing various services in the fields of health, safety, comfort, and communication. In the framework of this thesis, health monitoring aspects are of particular interest. Inactivity monitoring is a very promising approach thereto since it allows the detection of potential health threats or cases of emergency without being overly privacy intrusive. Deriving condensed and dependable inactivity profiles representing typical user behaviour is a pivotal prerequisite for automatic emergency monitoring. Several methodologies for computing such patterns are introduced. Based on those inactivity profiles, various alarming criteria (i.e., permissible inactivity thresholds) are utilised to trigger alarms automatically if the users' inactivity levels exceed individual, user-dependant limits. Since false alarms are inevitable in automatic alarming systems, a procedure of handling them is introduced as well. Finally, the real-world application of the devised AAL system is illustrated.
Digital Techniques for Wideband Receivers by James B. Tsui Pdf
This book is a current, comprehensive design guide for your digital processing work with today's complex receiver systems. This book brings you up-to-date with the latest information on wideband electronic warfare receivers, the ADC testing procedure, frequency channelization and decoding schemes, and the operation of monobit receivers.
Case Studies in Secure Computing by Biju Issac,Nauman Israr Pdf
In today’s age of wireless and mobile computing, network and computer security is paramount. Case Studies in Secure Computing: Achievements and Trends gathers the latest research from researchers who share their insights and best practices through illustrative case studies. This book examines the growing security attacks and countermeasures in the stand-alone and networking worlds, along with other pertinent security issues. The many case studies capture a truly wide range of secure computing applications. Surveying the common elements in computer security attacks and defenses, the book: Describes the use of feature selection and fuzzy logic in a decision tree model for intrusion detection Introduces a set of common fuzzy-logic-based security risk estimation techniques with examples Proposes a secure authenticated multiple-key establishment protocol for wireless sensor networks Investigates various malicious activities associated with cloud computing and proposes some countermeasures Examines current and emerging security threats in long-term evolution backhaul and core networks Supplies a brief introduction to application-layer denial-of-service (DoS) attacks Illustrating the security challenges currently facing practitioners, this book presents powerful security solutions proposed by leading researchers in the field. The examination of the various case studies will help to develop the practical understanding required to stay one step ahead of the security threats on the horizon. This book will help those new to the field understand how to mitigate security threats. It will also help established practitioners fine-tune their approach to establishing robust and resilient security for next-generation computing systems.
Alarm Systems and Theft Prevention by Thad L. Weber Pdf
Alarm Systems and Theft Prevention, Second Edition, recounts the sometimes sad, sometimes humorous, and nearly always unfortunate experiences of manufacturers, distributors, retailers, and individuals who have lost valuable merchandise, money, jewelry, or securities to criminal attacks. In most cases the losses occurred because there was a weak link: a vulnerability in the total security defense. The book presents in practical terms those weaknesses in physical security, alarm systems, or related security procedures that, when blended together, result in vulnerability. In addition to analyzing these cases and identifying the key elements of vulnerability, remedies for curing the weakness are also offered. Other sections of this book deal with the application, strengths, and limitations of security equipment. For the most part, equipment is presented from the practical viewpoint—what a security device or system will do (or not do) and how it should be applied and operated, rather than the detail of mechanical design, electrical circuitry, or laboratory theories. This book is written in layman's language and is intended to be read by people who supply, use, or need security services and equipment.
Designing for Situation Awareness by Mica R. Endsley,Betty Bolte,Debra G. Jones Pdf
Enhancing Situation Awareness (SA) is a major design goal for projects in many fields, including aviation, ground transportation, air traffic control, nuclear power, and medicine, but little information exists in an integral format to support this goal. Designing for Situation Awareness helps designers understand how people acquire and interpret information in complex settings and recognize the factors that undermine this process. Designing to support operator SA reduces the incidence of human error, which has been found to occur largely due to failures in SA. Whereas many previous human factors efforts have focused on design at the perceptual and surface feature level, SA-oriented design focuses on the operator's information needs and cognitive processes as they juggle to integrate information from many sources and achieve multiple competing goals. Thus it addresses design from a system's perspective. By applying theoretical and empirical information on SA to the system design process, human factors practitioners can create designs to support SA across a wide variety of domains and design issues. This book serves as a helpful reference to that end.
Understanding and Servicing Alarm Systems by H. William Trimmer Pdf
Understanding and Servicing Alarm Systems, Third Edition has seen the alarm industry enter the computer age. With its coverage of microcomputerized controls, sophisticated detection devices, methods of alarm reporting, that second edition broke new ground. Now completely updated to reflect the security industry's most high-tech advances, the third edition of Understanding and Servicing Alarm Systems, continues on the road of educating the alarm dealer, installer, and technician. Prepares readers for the practicalities of dealing with customers Takes readers from the basics of electricity to the most modern equipment installation and repair Teaches the pitfalls one might encounter in the alarm servicing profession, along with the approaches for troubleshooting