Informatica Economica Vol. 20 No. 4/2016
Issue Topic: Agile Development
CONTENTS
Analyzing Agile Development – from Waterfall Style to Scrumban
Marian STOICA, Bogdan GHILIC-MICU, Marinela MIRCEA, Cristian USCATU 5
The spectacular evolution of information and communications technology in
the last two decades and the growing obvious chase of utopian maximization of
profit by economic organizations have made an impact on various fields,
including that of methodological instruments regarding the lifecycle of
software development. We will speak about the necessity of organizational
ability to adapt to continuously changing market conditions, which leads
undoubtedly to acquiring functional flexibility and, in the end, of business
agility. Also, the agility of a business (not only in software development) is
supported by the manifestation of agility on all three architectural levels:
business, informational, technological. In this study we aim to identify the
elements that impact on agility in developing software products, in a gradual
approach, from the traditional waterfall model towards approaches like
Scrumban. Additionally, we will understand the social dimension of using agile
methodologies in software development projects and the main barriers in
adopting such methodologies.
Keywords: Agile Development, Software Development Life Cycle,
Project Management Tools, Incremental Model, Waterfall, Scrum, Kanban,
Scrumban.
Controlling and Monitoring Specific Hardware Resources
Mihaela MUNTEAN, Gabriela MIRCEA, Andreea POP 15
Within an agile approach, a RIA application for controlling and
monitoring specific hardware will be proposed. It is always a challenge
to choose the suitable technologies and IT frameworks to transform the
PIM model into the PSM model of the future RIA and after that to
implement the prototype. The main technological aspects are presented;
the approach makes direct referees to the developed tiers of the RIA
prototype.
Keywords: Rich Internet Applications (RIA), Multi-Tier
Architecture, Agile Development, RIA Frameworks
New
Researches on the Role of Virtual Exhibitions in Digitization,
Preservation and Valorization of Cultural Heritage
Cristian CIUREA, Florin Gheorghe FILIP 26
The current paper presents a scientific approach of implementing
online virtual exhibitions on mobile devices in order to increase the
number of visitors inside cultural institutions, such as galleries,
libraries, archives and museums (GLAM). There are described the new
opportunities offered by the cultural heritage to generate revenues for
cultural institutions and to contribute at the economic development of
the belonging countries. It is described the role of virtual exhibitions
in the processes of digitization, preservation and valorization of
cultural heritage. The most important features of virtual exhibitions,
which makes the differences from simple image galleries and websites,
are presented and detailed.
Keywords: Cultural Heritage, Virtual Exhibitions,
Mobile Applications, Digitization.
Estimating Maintenance Cost for Web Applications
Ion IVAN, Mihai Liviu DESPA 34
The current paper tackles the issue of determining a method for
estimating maintenance costs for web applications. The current state of
research in the field of web application maintenance is summarized and
leading theories and results are highlighted. The cost of web
maintenance is determined by the number of man-hours invested in
maintenance tasks. Web maintenance tasks are categorized into content
maintenance and technical maintenance. Research is centered on analyzing
technical maintenance tasks. The research hypothesis is formulated on
the assumption that the number of man-hours invested in maintenance
tasks can be assessed based on the web application’s user interaction
level, complexity and content update effort. Data regarding the costs of
maintenance tasks is collected from 24 maintenance projects implemented
by a web development company that tackles a wide area of web
applications. Homogeneity and diversity of collected data is submitted
for debate by presenting a sample of the data and depicting the overall
size and comprehensive nature of the entire dataset. A set of metrics
dedicated to estimating maintenance costs in web applications is defined
based on conclusions formulated by analyzing the collected data and the
theories and practices dominating the current state of research. Metrics
are validated with regards to the initial research hypothesis. Research
hypothesis are validated and conclusions are formulated on the topic of
estimating the maintenance cost of web applications. The limits of the
research process which represented the basis for the current paper are
enunciated. Future research topics are submitted for debate.
Keywords: Maintenance Cost, Web Development, Web
Application Maintenance, Software Maintenance
From
Natural Language Text to Visual Models: A survey of Issues and
Approaches
Cristina-Claudia OSMAN, Paula-Georgiana ZALHAN 44
Over the last 20 years, research groups focused on automating the
process of extracting valuable information from Natural Language text in
order to discover data and process models. In this context, several
tools and approaches have been proposed. The overall objective of this
survey is to examine existing literature works that transform textual
specifications into visual models. This paper aims to give a
comprehensive account of the existing tools meant to discover data and
process models from natural language text. Our analysis focuses on
approaches of these tools in the model extraction process and highlight
issues of each proposed approach. In the case of object oriented
software modelling of data models extraction we analyze the degree of
automation, efficiency and completeness of the transformation process.
Regarding process models extraction, the study is not limited only to
business process discovery, but it also provides case studies from
several fields such as medical or archaeological. Even if not all the
tools developed are clearly depicting a Natural Language Processing
technique, a review of each approach is presented.
Keywords: Natural Language Processing, Data Model,
Business Process Model
A Prototype
for an e-Recruitment Platform using Semantic Web Technologies
Mihaela-Irina ENACHESCU 62
Nowadays, the continuous demand for qualified candidates in the IT
domain has empowered the use of e-Recruitment tools, which are becoming
more and more exploited at the expense of the traditional methods. This
study focuses on the use of ontologies in developing a job recommender
system, which helps to automatically match job offers with the
candidates' profiles and in reverse. In order to design the IT
e-Recruitment ontology we have gathered a list with all the features a
platform of this kind should provide, for both the job seeker and the
recruiter. Based on the selected requirements, we developed the ontology
that offers all the necessary means to implement such a job recommender
system, designed to connect people with job opportunities and backwards.
The second part of the paper proposes a Java based architecture to
implement the e-Recruitment platform. To convert the users' input into
RDF description, RDF2Go and RDFBeans APIs are employed. Storing and
retrieving the data make use of the Jena Framework, which provides
dedicated interfaces for accessing the Fuseki2 Server over HTTP.
Finally, the prototype of the e-Recruitment platform is presented,
together with its core functionalities.
Keywords: Fuseki2 Server, IT Domain Ontology, Jena
Framework, Job Recommender System, Mobile Application, RDF
Representation
A Foreign Language
Learning Application using Mobile Augmented Reality
Florentin - Alexandru DITA 76
In this paper is described a foreign language learning application
using mobile augmented reality based on gamification method and text
recognition. The mobile augmented reality is a technology that extends
the real world elements with 2D or 3D computer generated objects and
lets the users interact with them. A Gamification system is based on
different mechanisms that increase the motivation of students, due to
the impact that videogames have in their emotional, cognitive and social
areas. The proposed solution applies Optical Character Recognition
technique, using the camera of the mobile device, in order to identify
the text written on a card. The implementation combines the features of
gamification system and mobile augmented reality in order to make the
learning process more easy and fun. This paper aims to present the
results after testing the foreign language learning application in
different scenarios.
Keywords: Gamification, M-Learning, Mobile Augmented
Reality, Optical Character Recognition, Virtual Object
Money Demand
Features in CEE Countries
Valentina-Ioana MERA 88
The existence of a stable relationship between money demand and its
determinants is important for the efficiency of monetary policy. In this
paper we carried a preliminary analysis on the variables that can
influence money demand in five Central and Eastern European countries
(Bulgaria, Czech Republic, Hungary, Poland and Romania) in order to
determine which characteristics define the evolution of money demand and
its determinants, and how volatile they are. The results indicate a
number of similarities in terms of monetary development and also suggest
that some additional variables that may influence money demand in this
specific sample.
Keywords: Money Demand, Inflation, Exchange Rates, CEE
Countries
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