Thursday, 22 May 2014

Basic Overview Of Siemens HMI Software

By Marci Glover


Human-computer interaction (HCI) is a multidisciplinary scientific field that deals with the development, evaluation and implementation of interactive computing systems for human use, as well as to study various aspects of its impact. In the field of computer supported collaborative work, emphasis is placed on the ability of systems to support collaborative interaction of a group of people. The system may be based on the Siemens HMI software.

Human-machine interaction (HMI) is a parent field which deals with similar issues but generalizes the interaction between humans and the machine. An important aspect in this field involves the usability of software and hardware. The standard EN ISO 9241 (especially Part 110 and 11) defines which requirements are placed on the usability of software or hardware.

In any case, in this context of human-machine interfaces, usability and accessibility aspects are of primary importance. With the advent of digital instrument clusters, it is becoming increasingly important to conduct in-depth study of HMIs in the automotive industry. In computer science, the term GUI (Graphical User Interface or GUI) indicates the layer of modern operating systems that allows interaction with the user through graphics rather than with keyboard commands (command line interface, CLI).

The computer has evolved very quickly since its debut in 1940. The first computers used punched cards, punched tapes or tapes. There were a keyboards for interacting with the system (console). Personal computers then began using floppy disks and a mouse before moving to touchscreens. The mouse allows you to use a computer with the WIMP paradigm that relies on graphical interfaces to organize the presentation of information to the user.

Ergonomic studies have also emphasized the relation of working conditions with stress and the visual perception of images. In assessing the current user interface, or developing new interfaces, designers should keep in mind the following principles of development: From the outset, it is necessary to focus on users and tasks. Set the number of users who are required to perform tasks. Iterative design involves determining the number of users, tasks, making empirical measurements.

On the computer side, technology design of computer graphics, operating systems, programming languages and development environments is important. On the human side, communication theory, linguistics, sociology and cognitive psychology are critical aspects. Due to the interdisciplinary nature of human-computer interaction, people with different levels of training contribute to its success.

The main task of human-computer interaction is to improve the quality of interaction, making computers easier to use and responsive to user needs. Long-term goal of human-computer interaction is to develop a system that will reduce the barrier between the human cognitive model and understanding of computer assigned tasks. HMI specialists usually deal with the practical application of development methodologies to real global problems. Their work often revolves around the development of graphic and web interfaces.

From an organic point of view, it is possible to distinguish three types of HMI: The acquisition interfaces: buttons, knobs, joysticks, computer keyboard, MIDI keyboard, remote control, motion sensor, microphone with voice recognition. The combined interfaces: touch screens, multi-touch control feedback. Games and virtual worlds such as Second Life, Everquest or Wolfenstein, where several players or users enjoy overall immersion in a common landscape, provide insight into new relationships that can be implemented through realistic interfaces.




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