Branko Perišić

A custom Internet of Things healthcare system

Health is the fundamental capability humans require to perceive, feel, and act effectively, and as such, it represents a primary element in the development of the individual, but also of the environment humans belongs to. That is why it is necessary to provide adequate ways and means to ensure the appropriate healthcare delivery based on parameters monitoring and direct providing of the medical assistance. The new technologies development and implementation, especially the Internet and Wireless Sensor Networks (WSNs) commonly known as the Internet of Things (IoT), enable global approach to the health care system infrastructure development. This leads to e-health system that, in real time manner, supplies a valuable set of information relevant to all of the stakeholders (patients, medical and paramedical stuff, and health insurance) regardless their current location. Commercial systems in this area usually do not meet the general patient needs, and those that do are usually economically unacceptable due to the high operational and development costs. In this paper, based on well-known low-cost technologies, there is a Do-It-Yourself (DIY) solution for a sustainable and adaptable patient oriented infrastructure development, presented.

Really rapid prototyping of large-scale business information systems

This paper presents a method and concepts of a supporting tool for really rapid prototyping of large-scale business information systems. Our method is based on the following guidelines: (1) small team of highly skilled members with combined skills; (2) prototype-based development of subsystems and the system as a whole; (3) brainstorming sessions always involving systems analysts, database and application designers, and user representatives (if needed); and (4) development tools providing for efficient prototype development by maximum automation of all design phases. The presented development tool is based on standardization of functional and visual characteristics of an application, a library of high-level, coarse-grained components, and a set of rules for model-to-application mapping enabling automatic application reconfiguration in case of changes in the data model.

A Graphical Editor for RESTful Sensor Web networks modeling

Effectiveness of communication is measured by speed, ease, and accuracy in which the information can be understood. From the cognitive aspect graphical presentations are usually more effective than textual ones, especially when communication between end-users and/or domain practitioners is concerned. Model-Driven Engineering (MDE) graphical tools have become extremely popular concerning the development of applications for a large number of domains. In this paper the emphasis is put on the design and implementation of Graphical Editor for RESTful Sensor Web Network in order to equip designers, with no expert knowledge in specific solution-domain, with a tool that would enable them to easily define tasks, specify network architecture and implement RESTful services. Based on the pilot sensor network design model, the verification, validation and proper functionality of proposed Graphical Editor are performed.

A proposition of low cost Sensor Web implementation based on GSM/GPRS services

In past few years, automatic remote systems for monitoring a wide range of environment or process parameters have exposed a rapid growth concerning the technology issues. Entering the era of Internet of Things (IoTs), a highly dynamic and radically distributed networked system, usage of small, cheap, flexible and end-user programmable computer hardware becomes apparent. These objects, deployed in various environments, are able to communicate and to interact among themselves, with end-users or other entities in the network. Using such objects, tasks like monitoring, control or data processing can be easily done. But, in some case, the target environments are often too dangerous, hazardous, unwired, or difficult to access. In such unfriendly environments there are many challenges for monitoring systems (wireless sensor networks) deployment and maintenance. As the possible solution, in this paper we have suggested the creation of an economical remote monitoring system, based on cheap computer board (Raspberry Pi), wireless sensors and GSM/GPRS (Global System for Mobile Communications/General packet radio service). In other words, the Raspberry Pi platform is utilized as central processing unit which provides a set of services for accessing sensor data, and communicates with end users, while different types of sensors (depending of target parameters) can constitute the detection module. 3G/4G USB Modem or GSM/GPRS shields can be used as GSM/GPRS communication module in order to ensure Internet connection. A whole system presents an IoT solution, precisely a Sensor Web node, which can be accessed all over the world, and provide information from a monitored environment. Performed research shows a possibility of setting up this system for a remote communication, control function and monitoring in unfriendly environments. The usage of low cost pieces of hardware verifies that the Raspberry Pi is highly suitable for numerous IoT concept applications and especially in the unfriendly environments.

Model driven development of hybrid databases using lightweight metamodel extensions

ABSTRACT The transition from traditional to Big Data technologies has put new challenges in front of existing database modelling techniques. The ‘Design then implement’ approach to relational database modelling, could not be fully applied to ‘Discover and analyze’ databases with rapid data growth. In the context of Big Data, models have preserved a descriptive role: they are used to analyze and understand the architecture of hybrid data structures. From the Model-Driven Engineering point of view, several questions emerge: Could Big Data and hybrid database models represent a formal specification for a solution, which can be transformed to an executable specification for a specific target platform? Does the refining mechanism have its place in the process of hybrid data structure development? An approach to modelling hybrid databases, based on empirically validated concepts of Model-Driven Engineering, is presented in this paper. The approach was applied during the implementation of Precision Agriculture Based Information Service (PAIS) application – a web-based service for the collection and archiving of diverse data on crops, and their presentation to farmers.

A Smart House environment - the System of Systems approach to Model Driven Simulation of Building (house) Attributes

The System-of-Systems research area, with its opened challenging approach to engineering practice transformation, has a significant impact to the closely related problem domains cooperation. The Architectural Design, Urban Planning, and Construction Engineering Domains, even when treated separately, are extremely demanding targets for sophisticated software tools development. While managing the complex urban blocks interactions in the contemporary city configuration, it is particularly important that these three domains cooperate closely. The application of a smart house paradigm is dominantly focused on the internal facility parameters monitoring and control. For the subset of these internal parameters, like for example: daylight illumination; privacy; and natural ventilation, the facility (building) environment impacts analysis is unavoidable. In this article, based on the System-of-Systems paradigm, we present the model of a smart house environment impact analysis framework suitable for Model Driven Simulations of Building (house) Attributes. The proposed framework architecture is designed to support the cooperation/collaboration of software tools. The verification has shown that it may be effectively used for the impact analysis of arbitrary external (urban block specific) attributes on their internal state and the behavior (specific for a single building).

Domain-Specific Modeling Environment for Developing Domain Specific Modeling Languages as Lightweight General Purpose Modeling Language Extensions.

Compared to General Purpose Modeling Languages (GPMLs), Domain Specific Modeling Languages (DSMLs) have brought increasing expressivity and conciseness through the use of concepts and notations, which are customized by the characteristics of a specific problem domain. However, the creation of completely new languages can significantly increase software development costs. An alternative approach to creating new DSMLs refers to a customization of existing modeling languages. The DSML creation process through a customization of existing languages is a special case of Language Embedding. The embedding provides customization of an inherited infrastructure to a given domain. This paper elaborates a Domain-Specific Modeling environment for embedding an arbitrary DSML into an arbitrary GPML. The environment enables uniform development of DSMLs in the form of a lightweight extension of existing modeling languages.

The foundation for cooperative services in engineering buildings — The common ontology for architectural and urban data repository modeling

Particular domain expertise in engineering and scientific fields has emerged demanding more advanced skills and deeper domain knowledge than just a few years ago. That is why computer supported cooperative work is the challenging discipline that drives the development process of contemporary and future engineering methods, standards and tools. The essential role of Architectural Design (AD) and Urban Planning (UP) is to enable forward looking approach to the building facility, while Construction Engineering (CE) expresses its routine through the transformation of abstract ideas to usable urban artifacts. Currently available software tools, supporting AD, UP and CE domains are far from being simple and ultimately demand advanced skills development. In order to facilitate service oriented architecture (SOA) support for AD, UP and CE cooperation, it is essential to design an interoperability environment that enables lean development support. In this article we discuss the ontology aspects of SOA support over common data repository. According to the AD, UP and CE domain analysis we purpose the Common Ontology for Architectural and Urban Data Repository Modeling that may serve as a n SOA building foundation.

Integrating Learning Management System and Faculty Information System - service oriented approach

The current era of information technologies opens new challenges brings new approaches concerning the use of computer supported Learning Management Systems (LMS). Nowadays, the majority of higher education institutions utilize information systems for handling administrative data, while some of them have successfully introduced one or more LMSes. On the other hand, the majority of LMSes rely on an encapsulated subset of administrative data, causing data redundancy with the administrative database. If the LMS supports learning activities which need to be scored, there is a strong need for reverse flow of relevant data from LMSes back to the administrative system. The need for the development of a moderation layer becomes a must. In this paper a brief analysis of the developed architecture of a moderation layer, the state of the art and the further development direction concerning the Faculty of Technical Sciences in Novi Sad information system architecture extending to the LMS integration are presented. A service oriented approach for two-way data exchange between these systems is proposed as a flexible solution.

Enhancing the management of unstructured data in e-learning systems using MongoDB

Purpose – Current e-learning platforms are based on relational database management systems (RDBMS) and are well suited for handling structured data. However, it is expected from e-learning solutions to efficiently handle unstructured data as well. The purpose of this paper is to show an alternative to current solutions for unstructured data management. Design/methodology/approach – Current repository-based solution for file management was compared to MongoDB architecture according to their functionalities and characteristics. This included several categories: data integrity, hardware acquisition, processing files, availability, handling concurrent users, partition tolerance, disaster recovery, backup policies and scalability. Findings – This paper shows that it is possible to improve e-learning platform capabilities by implementing a hybrid database architecture that incorporates RDBMS for handling structured data and MongoDB database system for handling unstructured data. Research limitations/implication...