Acta Informatica Pragensia, 2016 (vol. 5), issue 1

Inteligentné budovy s asistentom pre nevidiacich

Intelligent Building with the Assistance for Blind People

Milan Hudec

Acta Informatica Pragensia 2016, 5(1), 4-17 | DOI: 10.18267/j.aip.812300  

Home Automation Systems and AAL Systems are nowadays very quickly developed technologies. It is used for the living space support, heating, zone temperature regulation and many other automatable comfort for operating and gaining the information of the humans and household condition. The system of home automation "RUDO" is equipped with the assistance technologies that allow blind people to fully operate the heating system, zone regulation and use PC at the professional level.

Využití metody Lean Startup a nástroje Lean Canvas pro vývoj inovativního produktu

Lean Startup and Lean Canvas Using for Innovative Product Development

Alena Buchalcevová, Tomáš Mysliveček

Acta Informatica Pragensia 2016, 5(1), 18-33 | DOI: 10.18267/j.aip.827511  

Recently, new approaches to product development have emerged that focus on idea generation techniques and customer itself. One of them is the Lean Startup method that is described in this article along with the Lean Canvas method. The main goal of the article is to demonstrate the application of both methods to an innovative product development focused on providing interactive trips for families with children. The development of the product during individual phases is described and application of the Lean Startup and Lean Canvas principles is demonstrated. Finally, benefits of both methods contributing to the product success are discussed. Similar...

A Solution to the Square-Rectangle Problem Within the Framework of Object Morphology

Zbyněk Šlajchrt

Acta Informatica Pragensia 2016, 5(1), 34-45 | DOI: 10.18267/j.aip.834049  

The square-rectangle problem is often cited as an illustration of pitfalls arising when using object-oriented programming (OOP). A number of solutions have been proposed, however, according to the author, none of them solve the problem satisfactorily, mainly because they tackle the problem from within the current OOP paradigm. This paper presents another solution stemming from object morphology (OM), a new object-oriented paradigm developed to model mutable phenomena. In the framework of OM the problem can be solved directly under the basic OM principle that an object may mutate not only with regard to its state, but also with regard to its type. The...

Conceptual Agent-Based Model for Optimal Power Utilization in Wireless Sensor Networks

Olumide S. Adewale, Ojonukpe S. Egwuche, Samuel A. Oluwadare

Acta Informatica Pragensia 2016, 5(1), 46-55 | DOI: 10.18267/j.aip.842927  

Wireless Sensor Networks (WSNs) are densely and largely deployed in a variety of environments to sense real-world events. Many approaches have been proposed for collecting sensory data in any wireless sensor networks in a flexible, reliable, and efficient manner. In this study, we design an efficient mobile agent-based model for data gathering in wireless sensor networks to achieve energy and timely collection of sensory information in the target scene. The current focus in wireless sensor networks is placed on energy optimization during data gathering, processing and transmission. Mobile Agents (MAs) as a piece of a program have attracted growing...

Cloud Computing Governance Lifecycle

Soňa Karkošková, George Feuerlicht

Acta Informatica Pragensia 2016, 5(1), 56-71 | DOI: 10.18267/j.aip.854361  

Externally provisioned cloud services enable flexible and on-demand sourcing of IT resources. Cloud computing introduces new challenges such as need of business process redefinition, establishment of specialized governance and management, organizational structures and relationships with external providers and managing new types of risk arising from dependency on external providers. There is a general consensus that cloud computing in addition to challenges brings many benefits but it is unclear how to achieve them. Cloud computing governance helps to create business value through obtain benefits from use of cloud computing services while optimizing...

Business Rules Definition for Decision Support System Using Matrix Grammar

Eva Zámečníková, Jitka Kreslíková

Acta Informatica Pragensia 2016, 5(1), 72-81 | DOI: 10.18267/j.aip.862952  

This paper deals with formalization of business rules by formal grammars. In our work we focus on methods for high frequency data processing. We process data by using complex event platforms (CEP) which allow to process high volume of data in nearly real time. Decision making process is contained by one level of processing of CEP. Business rules are used for decision making process description. For the business rules formalization we chose matrix grammar. The use of formal grammars is quite natural as the structure of rules and its rewriting is very similar both for the business rules and for formal grammar. In addition the matrix grammar allows to...

Predátorské časopisy, pirátství a nové modely publikování odborných článků

Predatory Journals, Piracy and New Models of Publishing Scientific Articles

Zdeněk Smutný

Acta Informatica Pragensia 2016, 5(1), 82-91 | DOI: 10.18267/j.aip.873742  

The paper responds to observed absurd impacts associated with predatory journals, both at the personal and institutional level. There is mentioned the basic procedure to identify predatory journal and how to find it in Beall's list. Briefly are commented the consequences associated with the first study in the Czech Republic dealing with the number of articles published in predatory journals, which are inserted into the Information register of R&D results (RIV) by research institutions. On this basis, a part of the funding for universities and research organizations in the Czech Republic is redistributed. Furthermore, there are commented approaches...