Paper-review: Beyond Prototypes: Challenges In Deploying Ubiquitous Systems

This paper is discussing the challenges that need to meet in deploying ubiquitous systems, although vision of ubicomp came two decades before but progress rate is very low and there are many reasons for this; this paper focusing on technical and sociological challenges and problems in specific areas of ubicomputing research. From 1990 some technical changes directly affected the ability to deploy ubiquitous systems.e.g. GPS,RFIDs and social developments like facility of video surveillance in public places. Another field Web also created ubiquitous infrastructure by giving access of usage same point from several diff devices (office, home, cell phone, PDA etc).Development in early decades also made in Global system for mobile communications like GSM-based network Weiser's vision still seems like fiction, Sal's world uncovers a host of issues for deploying ubiquitous computing systems. Some are these: Problem associated with modern office packages that attempt to predict user intentions. To make correct association between the various components for providing above info. Then challenge in translating these info into driving map. Data protection legislation issues come, in some cases like video surveillance at parking care need to be taken for avoiding personal data. ParcTab had a powerfull workstation that made it better platform for reading email but issue come in conference rooms due to simultaneous usage over limited bandwidth of shared cell by all participants make them too slow. Teleporting and other early experiments with context aware systems used room-scale information generated by Active Badges, but it became obvious that many applications require fine-grained 3D location and orientation information. In-building location is a key-problem in ubiquitous computing; the challenge here is to achieve a degree of spatial resolution much closer to human perception of space. AT&T labs have developed the Active Bat, the most accurate deployed indoor positioning system this system serves as infrastructure for future research into sentient computing. Lancaster's Guide system is designed to provide tour guide to the visitors. It uncover various issues that related to interplay of infrastructure and user interaction. In such system user interaction tends to be governed by the capabilities of the infrastructure which is in ubiquitous environments is more prone to changes in composition & availability than in traditional application settings. Cooltown presents an interesting counter-point to many other ubiquitous computing sys by placing the user in the control loop. It involves the users in resource discovery. So that it avoids the design systems that can carry out task analysis or form complex associations between components-processes is extremely difficult to achieve in computer systems. MediaCup Experience: The guideline principle here is to augment objects with digital presence while preserving their original appearance, purpose, and use. The first object prototype was coffee cups equipped with a low-power microcontroller, embedded sensors and wirless communications. This object model is broad-casted at regular intervals over the wireless link to establish the object's digital presence.