Human beings live and work in large and complex environments. It is often difficult for individuals to perceive and understand the structure of these environments. However, the formation of an accurate and reliable cognitive map, a mental model of the environment, is vital for optimal navigation and coordination. The need to develop a reliable cognitive map is common to the average individual as well as workers with more specialized tasks, for example, law enforcement or military personnel who must quickly learn to operate in a new area. In this dissertation, I propose the use of a wearable computer as a platform for a spatial cognition aid. This spatial cognition aid uses terrain visualization software, GPS positioning, orientation sensors, and an eyeglass mounted display to provide an overview of the surrounding environment. While there are a number of similar mobile or wearable computer systems that function as tourist guides, navigation aids, and surveying tools, there are few examples of spatial cognition aids. I present an architecture for the wearable computer based spatial cognition aid using a relationship mediation model for wearable computer applications. The relationship mediation model identifies and describes the user relationships in which a wearable computer can participate and mediate. The dissertation focuses on how the wearable computer mediates the users perception of the environment. Other components such as interaction techniques and a scalable system of servers for distributing spatial information are also discussed. Several user studies were performed to determine an effective presentation for the spatial cognition aid. Participants were led through an outdoor environment while using different presentations on a wearable computer. The spatial learning of the participants was compared. These studies demonstrated that a wearable computer can be an effective spatial cognition aid. However, factors such as such as mental rotation, cognitive load, distraction, and divided attention must be taken into account when presenting spatial information to a wearable computer user.

The vision of ubiquitous computing is to seamlessly integrate information processing into everyday objects and activities. Part of this integration is an awareness on the part of a system of its user's context. Context can be composed of several variables --- such as a user's current activity, goals, or state of mind --- but location (both past and present) is almost always a key component. Determining location outdoors has become quite simple and pervasive with today's low-cost handheld Global Positioning System (GPS) receivers. Technologies enabling the location of people and objects to be determined while indoors, however, have lagged due to their extensive infrastructure requirements and associated cost. Just as GPS receivers utilize radio signals from satellites to triangulate their position, an indoor real-time locating system (RTLS) must also make use of some feature of the environment to determine the location of mobile units. Since the signal from GPS satellites is not sufficiently strong to penetrate the structure of a building, indoor RTLS systems must either use some existing feature of the environment or generate a new one. This typically requires a large amount of infrastructure (e.g. specialized RF receivers, additional 802.11 access points, RFID readers, etc.) to be deployed, making indoor RTLSs impractical for the home. While numerous techniques have been proposed for locating people and objects within a building, none of these has yet proven to be a viable option in terms of cost, complexity of installation, and accuracy for home users. This dissertation builds on work by Patel et al. in which the home power lines are used to radiate a low-frequency wireless RF signal that mobile tags use for location fingerprinting. Leveraging the existing power line permits this system to operate on far less additional infrastructure than existing solutions such as cellular (GSM and CDMA), 802.11b/g, and FM radio based systems. The contributions of this research to indoor power line-based RTLS are threefold. First, I examine the temporal stability of a power line based RTLS system's output. Fingerprinting-based RTLS relies upon some feature of the environment, such as the amplitude of an RF signal, to be stable over time at a particular location (temporal stability), but to change in space (spatial differentiability). I show that a power line-based RTLS can be made much more resistant to temporal instability in individual fingerprint components by utilizing a wide-band RF fingerprint. Next, I directly compare the temporal stability of the raw features used by various fingerprinting based indoor RTLSs, such as cellular, 802.11b/g, and FM radio. In doing so, I show that a power line based indoor RTLS has an inherent advantage in temporal stability over these other methods. Finally, I characterize the power line as a receiving antenna for low-powered wireless devices within the home, thus allowing the power line to not only transmit the RF signals used for fingerprinting, but also to receive the sensed features reported by location tags. Here, I show that the powerline is a viable receiver for these devices and that the globally available 27.12 MHz ISM band is a good choice of frequency for communications.

Advances in sensing and positioning technology, fueled by wide deployment of wireless networks, have made many devices location-aware. These emerging technologies have enabled a new class of applications, known as Location-Based Services (LBS), offering both new business opportunities and a wide array of new quality of life enhancing services. One example of such services is spatial alarms, an enabling technology for location-based advertisement, location-based alerts or reminders and a host of other applications. On the other hand, the ability to locate mobile users accurately also opens door for new threats - the intrusion of location privacy. The time series of location data can be linked to personal identity, which leads to unauthorized information exposure about the individual's medical conditions, alternative lifestyles, unpopular political views or location-based spam and stalking. Thus, there are two important challenges for location-based service provisioning. How do we scale LBSs in the presence of client mobility and location dependent constraints for the multitude of new, upcoming location-based applications under a common framework? How do we provide anonymous location- based services with acceptable performance and quantifiable privacy protection in the next generation of mobile networks, systems and applications? This dissertation delivers technical solutions to address these important challenges. First, we introduce spatial alarms as the basic primitive to represent a class of locationbased services that require location-based trigger capability. Similar to time-based alarms, spatial alarms serve as spatial event reminders that enable us to express different location-based information needs supported by a variety of applications ranging from location-based advertisements, location-based personal assistants, to friend locator services like Google Latitude. We develop a generalized framework and a suite of optimization techniques for server-centric scalable processing of spatial alarms. Our architecture and algorithm development provide significant performance enhancement in terms of system scalability compared to naive spatial alarm processing techniques, while maintaining high accuracy for spatial alarm processing on the server side and reduced communication costs and energy consumption on the client side. Concretely, we develop safe period optimizations for alarm processing and introduce spatial alarm grouping techniques to further reduce the unnecessary safe period computation costs. In addition, we introduce a distributed alarm processing architecture that advocates the partitioning of the alarm processing load among the server and the relevant mobile clients to reduce the server load and minimize the client-to-server communication cost through intelligent distribution and parallelization. We also explore a variety of optimization opportunities such as incorporating non-spatial constraints into the location-based information monitoring problem and utilizing efficient indexing methods such as bitmap indexing to further enhance the performance and scalability of spatial alarm processing in the presence of mobility hotspots and skewed spatial alarm distributions. Second, we develop the PrivacyGrid framework for privacy-enhanced location service provisioning, focusing on providing customizable and personalized location privacy solutions while scaling the mobile systems and services to a large number of mobile users and a large number of service requests. The PrivacyGrid approach has three unique characteristics. First, we develop a three-tier architecture for scaling anonymous information delivery in a mobile environment while preserving customizable location privacy. Second, we develop a suite of fast, dynamic location cloaking algorithms. It is known that incorporation of privacy protection measures may lead to an inherent conflict between the level of privacy and the quality of services (QoS) provided by the location-based services. Our location cloaking algorithms can scale to higher levels of location anonymity while achieving a good balance between location privacy and QoS. Last but not the least; we develop two types of location anonymization models under the PrivacyGrid architecture, one provides the random way point mobility model based location cloaking solution, and the other provides a road network-based location privacy model powered by both location k-anonymity and segment s-anonymity. A set of graph-based location cloaking algorithms are developed, under the MobiCloak approach, to provide desired levels of privacy protection for users traveling on a road network through scalable processing of anonymous location services. This dissertation, to the best of our knowledge, is the first one that presents a systematic approach to the design and development of the spatial alarm processing framework and various optimization techniques. The concept of spatial alarms and the scaling techniques developed in this dissertation can serve as building blocks for many existing and emerging location-based and presence based information and computing services and applications. The second unique contribution made in this dissertation is its development of the PrivacyGrid architecture for scaling anonymous location based services under the random waypoint mobility model and its extension of the PrivacyGrid architecture through introducing the MobiCloak road-network based location cloaking algorithms with reciprocity support for spatially constrained network mobility model. Another unique feature of the PrivacyGrid and MobiCloak development is its ability to protect location privacy of mobile users while maintaining the end-to-end QoS for location-based service provisioning in the presence of dynamic and personalized privacy constraints.

<p>There have been a number of methods proposed for increasing the precision of mobile positioning systems. One of the latest methods is Assisted GPS, A-GPS, on the Secure User Plane for Location, SUPL, platform, which seems to be a very interesting alternative from TeliaSoneras perspective, thanks to minimal infrastructural investment costs.</p><p>According to theory and lab testing A-GPS has the potential of providing a very good customer value in relation to the investment needed.</p><p>There is, however, a great need to see the performance when used in real user environments and with real user equipment. This is the basis for the choice of field testing as the method used in this thesis.</p><p>The result from the field tests conducted in this thesis shows that the performance of A-GPS is very good in outdoor environments, but when used in indoor environments, poor signal strength in combination with multipath and fading becomes a problem with low accuracy and long response times as a result.</p><p>Using a hosted mapping service, in combination with A-GPS, provides the possibilities of launching location based services even outside the home network. TeliaSonera had already found such a hosted mapping service that matched their compatibility, and reliability, requirements. This thesis investigates this hosted mapping service further and finds that the quality of the cartographic presentation of the map information is very poor.</p><p>The conclusion is that A-GPS performance, today, is limited by the hardware and algorithms used. If these are further adapted to indoor conditions, A-GPS has the potential of providing the customer value promised by the theoretical performance. For a successful launch of A-GPS services there is a great need of better cartographic presentation of map information, than what is currently is provided by the investigated hosted mapping service.</p>

<p>Recent development in modern computing has led to a more diverse use of devices within the field of mobility. Many mobile devices of today can, for instance, surf the web and connect to wireless networks, thus gradually merging the wired Internet with the mobile Internet. As mobile devices by design usually have built-in means for creating rich media content, along with the ability to upload these to the Internet, these devices are potential contributors to the already overwhelming content collection residing on the World Wide Web. While interesting initiatives for structuring and filtering content on the World Wide Web exist – often based on various forms of metadata – a unified understanding of individual content is more or less restricted to technical metadata values, such as file size and file format. These kinds of metadata make it impossible to incorporate the purpose of the content when designing applications. Answers to questions such as "why was this content created?" or "in which context was the content created?" would allow for a more specified content filtering tailored to fit the end-users cause. In the opinion of the authors, this kind of understanding would be ideal for content created with mobile devices which purposely are brought into various environments. This is why we in this thesis have investigated in which way descriptions of contexts could be caught, structured and expressed as machine-readable semantics.</p><p>In order to limit the scope of our work we developed a system which mirrored the context of ubiquitous learning activities to a database. Whenever rich media content was created within these activities, the system associated that particular content to its context. The system was tested during live trials in order to gather reliable and “real” contextual data leading to the transition to semantics by generating Rich Document Format documents from the contents of the database. The outcome of our efforts was a fully-functional system able to capture contexts of pre-defined ubiquitous learning activities and transforming these into machine-readable semantics. We would like to believe that our contribution has some innovative aspects – one being that the system can output contexts of activities as semantics in real-time, allowing monitoring of activities as they are performed.</p>

<p>The cellular phone network has been increasing rapidly during the last years. For many people the mobile phone has become an every day gadget with a wide performance and functional range. The usage of technologies like GPRS, HSCSD, EDGE and UMTS as well as the bandwidth of networks and consequently the connectivity of the phones has also increased persistently. Coming along with that, three technologies, which are ubiquitous or pervasive computing, mobile and wireless networks and location-based technologies, are making rapid progress.</p><p>The aim of this thesis is to offer an architecture for a location-based user interface in the intersection of the three technologies mentioned above. The system should work with a minimum of special hardware requirement. Not to overload the user with information, the user interface should be adaptable, context-aware and location-based. The context-data should remain extendible and adaptable.</p>

<p>Recent developments in modern computing and wireless networks allow mobile devices to be connected to the Internet regardless of their physical location. These mobile devices, such as smart phones and PDAs, have turned into powerful multimedia units allowing users to become producers of rich media content. This latest development contributes to the ever-growing amount of digital material existing on the World Wide Web, and at the same time creates a new information landscape that combines content coming from both, the wired and mobile Internet. Thus, it is important to understand the context or settings in which mobile devices are used, and what is the digital content produced by the different users. In order to gain more knowledge about this domain, we have investigated how to extend the standard metadata related to content with a metadata domain describing the context, or settings in which the content has been created.</p><p>In order to limit the scope of our work, we have focused our efforts in a specific case taking place in a project called AMULETS. The AMULETS-project contains all of the elements we need in order to resemble the contextual setting in a metadata model. Combined with the technical metadata associated to the digital content, we try to display the benefits of capturing the different attributes of the context that were present when the content was generated. Additionally, we have created a proof-of-concept Entity Relation (ER)-diagram which proposes how the metadata models can be implemented in a relational database. As the nature of the thesis is design-oriented, a model has been developed and it will be illustrated throughout this report. The aim of the thesis is to show how it is possible to design new metadata models that combine both relevant attributes of the context and content in order to develop new educational activities supported by location-based services.</p>

Populations and land development have the potential to shift as economies change at a rate that is faster than currently employed for updating a transportation plan for a region. This thesis uses the Foursquare location-based social networking check-in data to analyze the origin-destination travel demand for Austin, Texas. A doubly-constrained gravity model has been employed to create an origin-destination model. This model was analyzed in comparison to a singly-constrained gravity model as well as the Capital Area Metropolitan Planning Organization's 2010 Urban Transportation Study's origin-destination matrices through trip length distributions, the zonal origin-destination flow patterns, and the zonal trip generation and attraction heat maps in an effort to validate the methodology. / text

In the present project I propose to describe the design, development and implementation of mobile application TaggingCreaditor. TaggingCreaditor, as its name suggests, is a tool that allows the creation and edition of content for collaborative location-based mobile games, i.e., for the called 'Tagging games', whose physical elements are identified with tags such as a QR code or RFID code tags. The application has been developed for both desktop computers and mobile devices. In this paper the editor for the mobile devices will be presented. Mobile technologies play an increasingly important role in our lives, so that it is reasonable that new ideas come up to take advantage of this technology. An interesting example is the collaborative location-based mobile games that have the great advantage that they can be used for both entertainment and learning. Examples of collaborative location-based games are MuseumScrabble or CityScrabble, of which a study will be carried out prior to the design of the content editor. The problem is that there are plenty of locations where you can play many of the existing location-based games, but we do not have a generic tool that facilitates the creation of content. This is what comes to solving TaggingCreaditor: creating content for these games so that any developer can operate his game at any location in the world. Even, a school teacher could use this tool to create content for their students in a museum to which they will visit. Therefore, this application could be considered as a useful supporting utility for collaborative location-based mobile games such as MuseumScrabble or CityScrabble mentioned before. Among the highlights and strengths of the application, we find that it is a generic and collaboration tool. First, the application is designed with the idea that it can be used by a large number of mobile location-based games, so it is a generic tool. And, secondly, the content editor has the advantage of being collaborative, allowing multiple users to create content for their own games in parallel in the same database. I would like to finish remarking the utility that a generic editor may have for the location-based games, allowing to create content of any subject for whatever the game is and in any place of the world. I also would like to highlight that the editor can be improved in a lot of different ways, for instance, an interesting improvement could be the multi-user support so that each user can create their own games without using the same database that other users. / Η παρούσα εργασία περιγράφει το σχεδιασμό, την ανάπτυξη και την υλοποίηση της εφαρμογής ΤaggingCreaditor για κινητές συσκευές. To TaggingCreaditor όπως αποκαλύπτει και το όνομα του είναι ένα εργαλείο για την παραγωγή και επεξεργασία περιεχομένου για συνεργατικά χωρο-ευαίσθητα παιχνίδια με κινητές συσκευές, όπως για παράδειγμα τα “Tagging games” όπου τα φυσικά αντικείμενα αναγνωρίζονται μέσω της σάρωσης QR ή RFID ετικετών. Η εφαρμογή αναπτύχθηκε για χρήση σε σταθερό υπολογιστή αλλά και σε κινητές συσκευές. Σε αυτή τη διπλωματική εργασία θα παρουσιαστεί η εφαρμογή που αφορά στην παραγωγή και επεξεργασία περιεχομένου για κινητές συσκευές. Οι κινητές τεχνολογίες διαδραματίζουν όλο ένα και σημαντικότερο ρόλο στη ζωή μας, με αποτέλεσμα πολλές νέες ιδέες να προκύπτουν λαμβάνοντας υπόψην τα πλεονεκτήματα αυτών των τεχνολογιών. Ενδιαφέρον είναι το παράδειγμα των συνεργατικών χωρο-ευαίσθητων παιχνιδιών τα οποία μπορούν να χρησιμοποιηθούν παράλληλα για ψυχαγωγία και μάθηση. Τέτοια παραδείγματα αποτελούν τα παιχνίδια MuseumScrable και CityScrable, στα οποία έχει γίνει εκτενής μελέτη πριν το σχεδιασμό του TaggingCreaditor. Τα υπάρχοντα χωρο-ευαίσθητα παιχνίδια μπορούν να παιχτούν σε πολλούς χώρους ωστόσο δεν υπάρχει ένα εργαλείο γενικής εφαρμογής το οποίο να διευκολύνει στην δημιουργία περιεχομένου για τα παιχνίδια αυτά. Αυτό το κενό έρχεται καλύψει η παρούσα διπλωματική εργασία με το σχεδιασμό και την ανάπτυξη του εργαλείου TaggingCreaditor. To εργαλείο αυτό αναπτύχθηκε για την παραγωγή και επεξεργασία περιεχομένου για χωρο-ευαίσθητα παιχνίδια έτσι ώστε κάθε σχεδιαστής παιχνιδιού να μπορεί να σχεδιάσει παιχνίδια για να παιχτούν σε οποιαδήποτε περιοχή του κόσμου. Για παράδειγμα, ένας δάσκαλος θα μπορούσε να σχεδιάσει ένα παιχνίδι και να παράξει περιεχόμενο για αυτό ώστε να παιχτεί από τους μαθητές του κατά την διάρκεια μιας επικείμενης επίσκεψης σε ένα μουσείο. Επιπρόσθετα, αυτό το εργαλείο θα μπορούσε να αποτελεί υποστηρικτική λειτουργία για τα υπάρχοντα συνεργατικά χωρο-ευαίσθητα παιχνίδια όπως τα MuseumScrable και CityScrable. Ανάμεσα στα κυριότερα σημεία και δυνατότητες αυτής της εφαρμογής, είναι το γεγονός ότι το TaggingCreaditor είναι ένα συνεργατικό και γενικής εφαρμογής εργαλείο. Κατά πρώτον, ο σχεδιασμός έγινε έτσι ώστε πολλοί χρήστες να μπορούν συνεργατικά και παράλληλα να παράγουν και να επεξεργάζονται το περιεχόμενο των παιχνιδιών τους, χρησιμοποιώντας μια κοινή βάση δεδομένων. Κατά δεύτερον, η εφαρμογή αυτή σχεδιάστηκε με το σκεπτικό πως θα μπορεί να χρησιμοποιηθεί για την παραγωγή και επεξεργασία του περιεχομένου ενός μεγάλου αριθμού χωροευαίσθητων παιχνιδιών, κάτι που κάνει το συγκεκριμένο εργαλείο να είναι εργαλείο γενικής εφαρμογής. Θα ήθελα να κλείσω τονίζοντας την χρησιμότητα που μπορεί να έχει ένα τέτοιο εργαλείο γενικής εφαρμογής για τα χωρο-ευαίσθητα παιχνίδια, επιτρέποντας την δημιουργία και επεξεργασία περιεχομένου γύρω από οποιαδήποτε θεματική ενότητα, για οποιοδήποτε παιχνίδι και σε οποιαδήποτε περιοχή του κόσμου αυτό παίζεται. Θα ήθελα επίσης να τονίσω πως το συγκεκριμένο εργαλείο μπορεί να βελτιωθεί με πολλούς διαφορετικούς τρόπους όπως για παράδειγμα να μπορεί να υποστηρίζει πολλούς χρήστες οι οποίοι όμως δεν θα χρησιμοποιούν κοινή βάση δεδομένων για την παραγωγή και επεξεργασία του περιεχομένου των παιχνιδιών τους.

Nowadays, mobile games and applications have turned around in essential elements in the current society. But, at the same time that world does not stop (society, tendencies, ... it changes daily), mobile games and applications should update and modify their contents. Thus, content providers play an important role and turn around important. The Human Computer Interaction (HCI) group from University of Patras, have developed some mobile games with a playful and educative scope, and also its content editors. But, could be possible stopping developing one editor for each game and make one in common? even could we extend it to other games not developed by the HCI group? This will be our purpose during this document. Trying to create a content editor despite the fact of the differences of the games, logic, user interface and other many aspects which differ them. Therefore, the content provider should be able to create, edit or update the information or content without changing the performance of the games. For carrying this out, first of all we should analyze which things the games have in common and then, to get an abstraction. This abstraction should work for all the games although they have incompatible properties among them. Then, for this kind of properties, we should add somehow a visibility parameter. By this way, that properties will be invisible for games which do not use them. Hence, this common content editor should be able to add, modify and delete objects of the games which have been developed and can be played everywhere in the whole world. / Η παρούσα εργασία περιγράφει το σχεδιασμό, την ανάπτυξη και την υλοποίηση της εφαρμογής ΤaggingCreaditor για χρήση σε σταθερό υπολογιστή. To TaggingCreaditor όπως αποκαλύπτει και το όνομα του είναι ένα εργαλείο για την παραγωγή και επεξεργασία περιεχομένου για συνεργατικά χωρο-ευαίσθητα παιχνίδια με κινητές συσκευές, όπως για παράδειγμα τα “Tagging games” όπου τα φυσικά αντικείμενα αναγνωρίζονται μέσω της σάρωσης QR ή RFID ετικετών. Η εφαρμογή αναπτύχθηκε για χρήση σε σταθερό υπολογιστή αλλά και σε κινητές συσκευές. Σε αυτή τη διπλωματική εργασία θα παρουσιαστεί η εφαρμογή που αφορά στην παραγωγή και επεξεργασία περιεχομένου για χρήση σε σταθερό υπολογιστή. Ενδιαφέρον είναι το παράδειγμα των συνεργατικών χωρο-ευαίσθητων παιχνιδιών τα οποία μπορούν να χρησιμοποιηθούν παράλληλα για ψυχαγωγία και μάθηση. Τέτοια παραδείγματα αποτελούν τα παιχνίδια MuseumScrable και CityScrable, στα οποία έχει γίνει εκτενής μελέτη πριν το σχεδιασμό του TaggingCreaditor. Τα υπάρχοντα χωρο-ευαίσθητα παιχνίδια μπορούν να παιχτούν σε πολλούς χώρους ωστόσο δεν υπάρχει ένα εργαλείο γενικής εφαρμογής το οποίο να διευκολύνει στην δημιουργία περιεχομένου για τα παιχνίδια αυτά. Αυτό το κενό έρχεται καλύψει η παρούσα διπλωματική εργασία με το σχεδιασμό και την ανάπτυξη του εργαλείου TaggingCreaditor. To εργαλείο αυτό αναπτύχθηκε για την παραγωγή και επεξεργασία περιεχομένου για χωρο-ευαίσθητα παιχνίδια έτσι ώστε κάθε σχεδιαστής παιχνιδιού να μπορεί να σχεδιάσει παιχνίδια για να παιχτούν σε οποιαδήποτε περιοχή του κόσμου. Για παράδειγμα, ένας δάσκαλος θα μπορούσε να σχεδιάσει ένα παιχνίδι και να παράξει περιεχόμενο για αυτό ώστε να παιχτεί από τους μαθητές του κατά την διάρκεια μιας επικείμενης επίσκεψης σε ένα μουσείο. Επιπρόσθετα, αυτό το εργαλείο θα μπορούσε να αποτελεί υποστηρικτική λειτουργία για τα υπάρχοντα συνεργατικά χωρο-ευαίσθητα παιχνίδια όπως τα MuseumScrable και CityScrable. Ανάμεσα στα κυριότερα σημεία και δυνατότητες αυτής της εφαρμογής, είναι το γεγονός ότι το TaggingCreaditor είναι ένα συνεργατικό και γενικής εφαρμογής εργαλείο. Κατά πρώτον, ο σχεδιασμός έγινε έτσι ώστε πολλοί χρήστες να μπορούν συνεργατικά και παράλληλα να παράγουν και να επεξεργάζονται το περιεχόμενο των παιχνιδιών τους, χρησιμοποιώντας μια κοινή βάση δεδομένων. Κατά δεύτερον, η εφαρμογή αυτή σχεδιάστηκε με το σκεπτικό πως θα μπορεί να χρησιμοποιηθεί για την παραγωγή και επεξεργασία του περιεχομένου ενός μεγάλου αριθμού χωρο-ευαίσθητων παιχνιδιών, κάτι που κάνει το συγκεκριμένο εργαλείο να είναι εργαλείο γενικής εφαρμογής. Θα ήθελα να κλείσω τονίζοντας την χρησιμότητα που μπορεί να έχει ένα τέτοιο εργαλείο γενικής εφαρμογής για τα χωρο-ευαίσθητα παιχνίδια, επιτρέποντας την δημιουργία και επεξεργασία περιεχομένου γύρω από οποιαδήποτε θεματική ενότητα, για οποιοδήποτε παιχνίδι και σε οποιαδήποτε περιοχή του κόσμου αυτό παίζεται. Θα ήθελα επίσης να τονίσω πως το συγκεκριμένο εργαλείο μπορεί να βελτιωθεί με πολλούς διαφορετικούς τρόπους όπως για παράδειγμα να μπορεί να υποστηρίζει πολλούς χρήστες οι οποίοι όμως δεν θα χρησιμοποιούν κοινή βάση δεδομένων για την παραγωγή και επεξεργασία του περιεχομένου των παιχνιδιών τους.