CROATIAN PUBLIC COMPANIES FOR ENERGY DISTRIBUTION AND SUPPLY: INTEGRATION OF INFORMATION SUBSYSTEMS

Abstract

This research is about integration of information subsystems from:information system procurement, financial information system, information system security, technical information systems and legal information systems, and about their mutual dependence and close connections in Croatian public companies for energy distribution and supply. Also, herewe research the main goals of procurement information system which must be achieved in every organization because procurement process takes place in every public organization. Based on the model of the business technology matrix their processes can be executed by other companies engaged in similar activities. This research paper describes the timing of the sub processes, also. The timing of sub processes needs to be reduced as much as possible to achieve the planned results at the exit of the sub processes so that the costs of running sub-processes are equal to or lower than they had been so far, but with a higher quality output. We discuss possible threats to the information systems organization, and how to protect electronic information in the process of restoration of electronic data base for the financial information system. At the end the research paper we explain the advantages and disadvantages of cloud computing, information security in the event of possible applications of computing in the clouds and activities for technical information system in the flow diagram.

Full text

International Journal of Industrial Electronics and Electrical Engineering, ISSN: 2347-6982 Volume-4, Issue-1, Jan.-2016
Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
59
CROATIAN PUBLIC COMPANIES FOR ENERGY DISTRIBUTION
AND SUPPLY: INTEGRATION OF INFORMATION SUBSYSTEMS
1VLADIMIR SIMOVIC, 2MATIJA VARGA, 3VLADIMIR SIMOVIC
1,2University North- Koprivnica Croatia,
3Faculty of Electrical Engineering and Computing University of Zagreb Croatia
E-mail: 1vsimovic@unin.hr, 2maavarga@gmail.com, 3vsimovic@tvz.hr
Abstract- This research is about integration of information subsystems from:information system procurement, financial
information system, information system security, technical information systems and legal information systems, and about
their mutual dependence and close connections in Croatian public companies for energy distribution and supply. Also,
herewe research the main goals of procurement information system which must be achieved in every organization because
procurement process takes place in every public organization. Based on the model of the business technology matrix their
processes can be executed by other companies engaged in similar activities. This research paper describes the timing of the
sub processes, also. The timing of sub processes needs to be reduced as much as possible to achieve the planned results at the
exit of the sub processes so that the costs of running sub-processes are equal to or lower than they had been so far, but with a
higher quality output. We discuss possible threats to the information systems organization, and how to protect electronic
information in the process of restoration of electronic data base for the financial information system. At the end the research
paper we explain the advantages and disadvantages of cloud computing, information security in the event of possible
applications of computing in the clouds and activities for technical information system in the flow diagram.
Keywords: Public Energy Companies, Integration Model, Information Sub-systems, Diagram Goals, ERP System.
I. INTRODUCTION
In this paper we present the preliminary concept of
research the information subsystems and ERP
systems that are present in almost all sectors of public
companies and in public companies for the
distribution and supply of gas.The main research
topic:‘integration of information subsystems’ was
modeled and developed on specific public companies
work examples, wherewe show how information
subsystems are working from technical, engineering
and economic aspects.Consequently researchpaper is
interesting source of research information for
scientists from different branches of information
sciencesEffective data management in the
information systems and the newpossibilities of usage
of business decisions opportunities developedwith
information systems for decision support can support
the top management in making important decisions.
Decisions can be made in the information subsystem
procurement on the basis of information from the
legal information subsystem and financial
information subsystem. Relevant information
required in the procurement process can be collected
from the security team of the information system and
technical information subsystem. All valuable
information on which key decisions are made by
managers should be protected, whether they been in
digital or analog form.
The research aimswere: (a) the model shown
functioning information subsystem procurement,
financial information subsystems, security policy
information system, technical information subsystem
and legal information subsystem; (b) describe their
mutual interdependence and integration are closely
observed within the organization; (c) show business
system with reference to the information system of
the company for the distribution and supply of natural
energy source; (d) make an outline and document all
the goals of the information subsystem in the
technical sector and the sector of general and legal
jobs; (e) detailed elaboration of models to display all
business processes and flows of documents; (f) model
display integration of information (sub)systems using
basic parts information systems; (g) measure the time
required for the process and time compared with the
previous survey.
The company that processes observed is due to its
specific business as it deals with distribution and
supply of natural gas energy. The above information
subsystems are essential for the efficient functioning
of the entire organization regardless of the type of
ownership. The main task of information subsystem
procurement is to obtain all the information they need
to procure resources and other funds for the work of
the organizations at the appropriate criteria. Timely
information at the appropriate time to enable the (pot)
procurement processes generates profits. The tasks of
the procurement process are: lower costs of obtaining
resources and funding that enables efficient operation
of the system and reduction of entropy. Today, the
expansion of modern technology, there are potential
threats directed at information systems organization,
and describes how the protection of information in
electronic form and methods of restoration of the
database.
The integrated information system rationally and
efficiently processed within a reasonable time
accounting events referring to operations of assets,

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Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
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equity and liabilities. About the same changes in the
financial position of the company management
accounting prepares financial statements and informs
the management company. At the same time in real-
time links all users of an integrated information
system with a unique database. (Mulahasanović,
2015).Within financial information subsystem used
different methods and models to support decision-
making. These information systems are presented as
essential for the management of the company.
information subsystem procurement is crucial for
procurement of information and resources for smooth
processes in organizations. Five stated information
subsystems make information structure observed the
organization in its entirety. Financial information
subsystem is essential for recording business events
and business changes and analysis of financial
statements. Security information system is mainly
focused in a way that protects the relevant, reliable,
valuable information and the information transmitted
in analog form that is relevant to the organization.
Technical information subsystem of the organization
is responsible for the display of real data from the
process image of objective reality the management
company from the field in moving calibration,
distribution and maintenance. Technical information
subsystem generates a realistic image data from
objective reality based on processes performed in
gauging office, on the field where it is the
maintenance of the distribution system and where the
viewing takes place preventive installation. Legal
information subsystem enables greater security of
information systems and it is in charge of Court
Based Dispute Settlement instigated by: irresponsible
business partners, representatives of households or
internal company employees.
II. THE IMPORTANCE OF INTEGRATION OF
INFORMATION SUBSYSTEM
The aim of the information system is to provide
business system with necessary and relevant
information for the smooth execution of the process
and system management. Procurement information
subsystem in most cases is a complex system that
enables: communication company with its customers
and suppliers, good tracking flows of funds for the
work, creating the conditions for monitoring the
financial elements of business relationships,
preparing and transmitting information in a financial
information subsystem, specifically the process of
accounting (Panian&Ćurko, 2010: 93).It is not wrong
to point out the importance of the information
subsystems procurement because of it begins
execution of the process. Procurement information
subsystem is used to collect information necessary for
the smooth running of processes in organizations and
public procurement funds for the work. Legal
information subsystem in the company ensures that
the decision-making process in public procurement is
viewed.Fig.1 was made by authors and based: mainly
on the scientific work: Šimović, V., Varga, M.,
Oreški, P. Case Study: an Information System
Management Model. Management Information
Systems. Vol. 7.(2012), No. 1, pp. 013-024 (Fig.1)
and on basic logic of the Von Neumann original
model on which today operateall modern computers
and mobile devices.
Fig.1. Illustration of connection between elements of
information subsystems and components of business
information system
The procurement process and its (sub) processes
wasused for the procurement of information, goods,
capital equipment, services and works. It is not wrong
definition that the procurement generates profits
(Ferišak, 2006). With the acquisition of more
convenient means for working at a lower price than
the real value is created and profits were also lower
costs caused by procurement. It follows evidence of a
close link information subsystem procurement,
financial information subsystem, information system
security, technical information subsystem and legal
information subsystem (Fig.1). Model integration
(Fig.1) shows the coordination of management
information systems, and all components of the
information system. Fig.1 shows that in each
information (sub) system data can be entered by the
user information system (Lifeware) through UI
widgets that turn track (picture from the real reality)
in a digital form using (IS) computers and data stored
in the database (Dataware). The data is based on a
physical level also (simultaneously) written to the
hardware of the computer (ie. the tanks for storage) in
the form of binary records. Netware allows access to
the data (Dateware-in) for any modules of the
information system only to human resources
(Lifeware-in) who have access rights granted by a
user in charge of the security of information systems.
Information systems that have the same integration of
elements in Fig.1 provide benefits as ERP (ie. ERM
and / or ERP II) systems, which are a direct successor
MRP2 systems which are: increased productivity,
reduced inventory costs, production and logistics,
improving communication with customers ,
integrating enterprise functions into one unit, and lay

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Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
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the basis for supply chain and e-business (Vuković,
A. – Džambas, I. – Blažević, D. 2007: 42). List of
world's largest manufacturers of ERP (enterprise
software) that provides these benefits and associated
information subsystems with different departments
are: SAP, Enel, DataLab, Infosistem, Microsoft,
ORACLE, Sage, Omega Softver, IN2 (vidilab, 2009.,
p.:3, 8, 10, 12, 14, 16, 22).
Financial information subsystem records all business
events occurred in the organization takes care for the
availability of cash funds. Security of information
systems can’t function without a financial
information subsystem and provides funding, legal
information subsystem that it legally protects and
ensures that decision-making process is clear and
public, and technical information subsystem.
Financial information subsystem can’t function
without ensuring the security of information systems
and legal information subsystem that it constantly
protects and no technical information subsystem that
takes care of the smooth running of the main
processes of supply and distribution of energy.The
aim of legal information subsystem is to improve the
(way) process and activities: (a) the legal field; (b)
area of public procurement; (c) the financial area; (d)
the area of security; and (e) the technical area.
Fig.1 shows the integration of the above information
subsystems and integration of the information
systems as part of the program, the hardware part,
organizational unit, personnel section (part of the
Human Resources Management), power supply and a
data part. Presented parts information system
necessary for the smooth running of business
processes and to improve efficiency of business
III. ANALYSIS: AIMS OF PROCUREMENT
AND LEGAL INFORMATION SUBSYSTEMS
The breakdown of the objectives of the information
subsystems procurement and objectives of the legal
information subsystem is a breakdown of the
objectives of the information sub-goals to specific
order and appropriately following the rules
decomposition which reads: "Every parent must have
at least two children “.
Fig.2 shows the decomposition of the goals of the
information subsystems procurement. The present
objectives include your (sub) goals which can be seen
from the model. (Under) objectives are: to collect
information about the conditions of supply, to collect
information on the best supplier, to collect
information on the possible reduction of the costs of
supply, to collect information on the costs of storage,
collect information on how to lower costs of care,
market research and collect data from the field on the
basis of an appropriate sample, collect information on
the optimal amount of ordering, to collect information
on the manner and time of delivery, to collect
information on the need for training of staff in the
procurement process, to collect information on the
level of risk of procurement.
Fig.3 shows the decomposition of the objectives of
legal information subsystems which are: to gather
information that will ensure the right of companies to
collect information to the decision making process in
public procurement was viewed, collected
information to ensure the legal security of the
company and to collect information on debtors for
services offered to businesses . Another goal of the
decomposition diagram (which shows the objectives
of the legal information system) is closely associated
with the procurement process as it unfolds public
procurement of goods, works and services under
Articles of the Law on public procurement of goods,
works and services.
Fig.2. Decomposition goals of the procurement information
subsystems
Fig.3. Decomposition goals of the law information subsystems
IV. THE DATA CLASSES FOR INFORMATION
SUBSYSTEMS OF THE PUBLIC COMPANIES
FOR ENERGY DISTRIBUTION AND SUPPLY
Business technology matrix is often used in research
for a clear overview of the integration of information
subsystems. Business technology matrix is strictly
defined two-dimensional mathematical structure over
which they can implement formal operations such as
checking the consistency of business technology

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Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
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optimization or organization, and describes the
relationship between different factors (Brumec,
2008).Matrix processes range data and the method to
display and process the data range and provides a
clear picture of the business and technology of the
system under its complexity of the system under
examination has a scientific theory, the contribution
system (Fig.4). The matrix is structured in such a way
that there is no (way) process that generates only and
does not use any class data. The process is a set of
activities that occur in a specific order. Class
information is logically designed and linked set of
data, which refers to one guise or entity. Class data is
in the process (or (sub) process) creates and uses.
Business technology matrix for the observed
information subsystems can be used when designing
the data flow diagram.Fig.4. was based on business
logic of the observed company, established 31 (way)
process and 61 classes of data with tools for
analytical data processing and on the basis of
scientific articles (Šimović, V. - Varga, M. - Oreški,
P. 2012: 16) and review article (Varga, 2011:
369).Fig.4 shows the detailed information of the
public organization is divided into sections and its
functioning.
Fig.4. Original integration matrix of information subsystems

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Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
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Business technology matrix is divided into two
sections for easy reference.The matrix technology is
hidden individual (sub) processes for detecting the
integration of subsystems. Since the observed five
information subsystems, is presented complex matrix
of business technology companies for the supply and
distribution of energy. Business technology matrix
shows that the documents as information required
information subsystem procurement (from suppliers
to convince management of the organization that
supplies that can independently achieve its objectives
and carry out works), financial information
subsystem, for ensuring the security of information
systems, technical and legal information subsystem
information subsystem.
To analyze the content of the matrix used is a tool for
analytical data processing. The software tool is easier
to quantify the how your matrix of business
information technology sub-system procurement, a
financial information subsystem, technical
information and legal information subsystem contain
sub-processes. Benefits matrix display technology
business model of integration of information systems
and processes and data classes are: Matrix provides a
clear and transparent overview of all processes and
data classes within the monitored information system
as opposed to the flow chart of data that cannot be
understood in view of large-scale information
systems , the matrix shows how many times a
particular process creates, reads, deletes and updates
the specific class of data.
The duration of the individual processes, sub-
processes and activities of the observed information
system is shown in a separate table (Table
1).Technical information subsystem using class data:
agreement, notice of conclusion of the contract,
payment slips / paid in & paid list and spending and
that of the class of data are created in the (sub)
processes by the name of procuring materials and
energy (contract, notice of conclusion of the
contract), load consumption (list of consumption) and
calculate the cost of consumed fuel (money order /
paid in & paid).
V. MEASURING THE SUCCESS OF THE
INTEGRATED INFORMATION SUBSYSTEMS
PROCESSES
Measuring the success of the process is done to
control their execution. If the processes are performed
in a way that gives the desired output (outputs) they
do not need to improve, but with them to manage and
control their performance. As arguments for the
measurement process, PO Egnell (2001) lists the
following reasons to work (Hernaus, T., 2006: 215):
(a) knowledge about the success of the process; (b)
affairs improvements focus on the right things; (c)
comparison of goals and objectives of the process and
the identification of deviations; (d) monitoring trends;
(e) motivating employees to improve operations; and
(f) eliminate those activities that do not add value.
All parts of the process should be measured in order
to identify (sub) processes that do not create value;
you need to carefully monitor such processes. The
measurement process requires an understanding of
the process and creates the ability to identify critical
parts. Critical parts of the process can be measured
when exactly determine what those (sub) processes,
which significantly facilitates the way the
management and control of business processes
(Enstrom, 2002: 28-29). Efficient process
management requires a wide range of measurement
parameters. So they need the financial and non-
financial data, both qualitative and quantitative
(Kueng, 1999: 155). The process indicators can be
classified into two categories: operational and
structural.
Operating indicators measure how the process takes
place over time. Specific indicators that can be used
depends upon the specific process. Operating
parameters are directly focused on the dynamic
characteristics of business processes, structural
indicators oriented static characteristics.They strongly
influence the success of the process as it indirectly
affects the dynamic characteristics. Three operational
indicators are: the duration of the process, the
bottleneck process and waiting times.The duration of
the process is the average time between the end of the
activities of successive units (Hernaus, 2006: 216).
Table 1:The duration of each process
Table 1 shows the timing of the individual (sub)
process in hh: mm: ss. The duration of individual
(sub) process could not be determined, therefore, is
placed unknowns X. Measurement duration and
course of (sub) processes in the supply, financial and
security system is significantly different than in the
manufacturing information system. Table 1 shows
that the operating parameters are applied, and that for
each (sub) process in the process of a certain duration
and the resources that take part in it. Based on Table
1 can be observed compare running times of
individual (sub) process and it was found that for
each (sub) processes need more time to run after a

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Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
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specified period has passed since the first
measurement. Table 1 shows the human resources
which are responsible for the running of (sub) process
and have an effect on reducing the running times (the
path) of the process and thus improve the
performance of operation (path) of the process. If an
observed process is not performing well or is too long
run it is necessary to achieve the fundamental
objectives to change the business processes which are
less time, lower costs and higher quality of services.
If the targets are achieved, the changes can be
considered successful. Based on the timing of the
process can be observed that in the second
measurement processes shank took place and that
they give the same results processing (as shown in
Table 1).
VI. FINANCIAL INFORMATION SUBSYSTEM
INTEGRATED WITH CLOUD COMPUTING
The task of financial information subsystem is a
recording of all business events in companies in the
financial and value terms. Financial information
subsystem and its modules for recording business
events are similar in many organizations because the
modules at the end of treatment processes must meet
the set of rules that are defined in the articles of the
Law on Accounting. Financial information subsystem
of the software includes the following group of
modules (Fig.5): General Ledger module, module
analytical accounting (and other supporting books),
which consists of (sub) modules such as accounting
for fixed assets, the accounting of inventory, raw
materials, calculation salaries and employee
personnel records, (sub) module accounts receivable
and suppliers, accounting for small inventory and
spare parts.
Fig.5. Organization of financial information subsystem
(Source: Based on the book: Panian, Ž. &Ćurko, K.
(2010.) Business Information Systems. Zagreb,
Element. p: 83.)
Fig.5 shows the organization of financial information
subsystem. A feature module General Ledger
Accounting in the process is that the data is recorded
in the general ledger module relating to the last
events occurred. The company may record events
(financial changes) with cloud computing. Services
cloud computing can create a company engaged in
the development of cloud technologies. Companies
for the development of cloud technology can enable
the user to use the above modules. The content of the
module is determined by the general ledger accounts
and chart of accounts, which adheres to a business
entity. In the general ledger module can be concluded
that mandatory because its structure prescribed by the
Law on Accounting. General Ledger module in most
cases includes application reports (Panian&Ćurko,
2010: 84).
In the process of accounting documents inputs that
create business events and transactions. The process
of accounting has its output representing the result of
the processing process. (Sub) processes within the
accounting process are: liquidation, general ledger,
and payroll, preparation of statistical reports and
analysis of financial statements. (Sub) process
liquidation includes the following activities:
controlling forms of accounting documents,
controlling text correctness and controlling the
computational accuracy (financial value). Another
name that is most commonly used for the (sub)
process of liquidation was to control. After the
completion of activities within the (sub) process of
liquidation, the documents are entered into the
general ledger. Activities (sub) process liquidation
takes place employees in the workplace liquidator.
Following the preparation of financial statements
obtained certain information based on data contained
in the general ledger. One of the tasks of the process
of accounting the collection and processing of
financial data from the financial statements and the
presentation of information obtained the company's
board, the supervisory board, the auditors, the owners
of companies, trade unions, banks, public, suppliers,
customers, employees and other interested people.
The basic annual financial reports such as balance,
RGD and additional data is sent to the environment is
evident based on matrix technology business because
of reports of interested buyers, suppliers, investors,
institutions, government and others.
VII. SECURITY POLICIES OF INTEGRATED
INFORMATION SYSTEM
Security policy information system protects
information systems within the organization, its
processes and employees who participate in the
execution process. Physical security is of great
importance in the security information system
organization. It is well known that the most common
attacks on information systems caused by employees
of a particular organization. Research performed and
published in a book: D. Seger, K., VonStroch, W.
„Computer Crime a Crimefighter's Handbook“,
O'Reilly & Associates and prove that fact. The book
states that the highest percentage of security problems

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Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
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caused by human error. Human error is most often
occur due to lack of attention and lack of
education.The second biggest cause of errors in
information systems is a failure of hardware
equipment, the third most common cause of
employees who represent their position in the
institution used for their own benefit, and the people
in this way express their dissatisfaction with the
company or supervisor (Kovacevic, 2015).
Table 2 shows the types of threats to the security of
information systems. Table 2 presents the sources of
threats, a description of the domain and the specific
threat that shows specifically who can affect the
security of information systems.In companies the user
access to certain applications organized as follows:
Head of Department in the coming new employee
sends a request to open an account with the data on
the level and access rights. In addition to other basic
data, the application should include the job title,
description of work and needed access rights. Once
the user receives a password from the manager of the
department can be changed so that he and the
administrator can access specific data. Each
employee must have a password to access a specific
part of the application, i.e. particular module.
Password changes usually every month, and if
necessary, should be more than once a month. For a
password would be desirable to include a
combination of uppercase and lowercase letters and
numbers. No way is not recommended to use the
password given names, surnames, names of parents,
children, birth date, name of the place of residence,
street name and etc. For a password is not good to use
the same set of characters and password must not
write on paper and placed in a tray to avoid a third
person came to the secret data and information of
high value.
Table 2:Types of security threats to information
systems
Source: Basis of the table is material: Klaić, A.
(2010) Minimum security criteria and risk
management of information security,
URL:http://os2.zemris.fer.hr/ISMS/rizik/2010_klajic/
SeminarskiRad_SRS_042010_AK.pdf, (6.8.2015)
The most common attack on password is the testing
or guessing passwords. Testing or guessing
passwords attack in which the offender is trying to
access a particular system of random guessing
passwords, while in most cases the method of trial
and error. Although this attack seems a bit naive with
some time it can be effective, especially when we
know very well the person who set up the
password.Taking into account the limitation of the
number of attempts to access the computer system,
the system must be adjusted in a way that limits the
number of possible approaches. If a user attempts to
more than three times to access the system with the
wrong user name and password information system
should reject it. A further possibility that it would be
desirable to set that messages about the last access to
e-mail is displayed ie. To display the last data access
in the form of: the date, time and name of the Internet
service provider from which the user has accessed
your mail to be visible.
Cloud computing is not intended for the use of
businesses small and medium enterprises, but cloud
computing can use the large companies, companies
that have more than 250 employees or companies that
generate higher profits and the creation profits belong
to the group of large companies. If a certain company
has for each department made the appropriate
applications gives it the ability to use cloud
computing. It is recommended that departments of
companies that do not have and do not manipulate the
important data for the company as the use of cloud
computing. When it comes to the security of
electronic data and information with servers and
cloud services technologies can talk about the
shortcomings. Providers in the cloud enable data
encryption, security, user names and passwords and
rudimentary identity management. It is recommended
that companies do not use cloud computing when it
comes to recording business events within the
financial information subsystem rather than being
clearly defined rules of the contract of use. The issue
of security is better mastered and there is no reason to
believe that the same data would be more confident in
their own storage systems databases. When a user
preferred provider of cloud computing has more
influence over the control of the information
infrastructure provider that is dangerous for the user.

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The user must comply with the regulations of the
service provider to him the same would not be
repealed account and access to data. It is possible to
download the company that provides the service by
other companies who decide on the continuation of
cooperation with existing customers. The costs are a
major reason why less use computing in the clouds.
Sometimes they can be expensive to maintain
applications in the cloud than on your own server or
computer. The cloud computing usagecost can be
advantage and disadvantage. It is therefore very
important to consider the cost and return on
investment. Most platforms in computing in the
clouds is privately owned. If the user wants to move
the system to another service provider, back in his
own company may be a case of data loss or an
increase in the cost of transmission of electronic data.
Providers are trying as quickly as possible establish a
set of standards in order to reduce the high costs.
Openness and the use of cloud computing remains a
risk. These are expected improvements in this area. A
large number of service providers on the Internet do
not provide a service level agreement. The trend of
the service provider cloud computing is the inclusion
of service level agreement, but at the same time
shifting the costs of risk to service users.
VIII. TECHNICAL INFORMATION
SUBSYSTEM FOR DATA COLLECTION AND
PROCESSING
The aim of the technical information subsystem is to
provide a system and management companies all
necessary and relevant information for the smooth
execution of processes of distribution of energy and
the smooth management of the system. Within the
technical information system observed the company
needed to collect information on the distribution of
natural energy source that contain data on restoration,
rehabilitation of damaged ports, rehabilitation
uncontrolled bandwidth, connecting newly
constructed lines, work at household connections,
replacing measuring instruments and concealer, stab
new consumer line. Intervention (Fig.7) includes
work on removing anomalies that can occur at the
consumer or to the distribution system, which
significantly affected the safety and reliability of
supply. Restoration of connections includes the
planning, preparation, execution and monitoring of
damaged cables and connections. In addition to
collecting information on distribution of energy is
necessary to collect information on the maintenance
of installations. During the course of (sub) processes
maintenance installation information is collected
about uncontrolled bandwidth distribution system,
maintenance reduction stations and distribution-
reduction stations, maintenance of distribution shafts,
maintaining condensing panes, keeping valves to
block, detect underground cadaster.Technical
information subsystem must contain the basis of
electronic information on testing installations
containing test data is not part of the installation of
the measuring and testing of the measuring part of the
installation. Fig.6 shows the decomposition of the
goals of the technical information subsystem made
according to the rules of analysis. According to the
defined goals it can be perceived complexity of the
technical information subsystem.
Fig.7 shows a flow chart of activities during the
intervention. It is widely known that the diagrams the
flow of activities developed Birtwistle in 1979 as a
means of modeling. Interventions are necessary for
the smooth running of the process of distribution.
DiO is label for the distribution and maintenance, RN
is the document - work order, while DR is mark
indicates the flow chart daily work.Fig.7 shows the
head of distribution and maintenance involved in
making the plan work. The manager of distribution
and maintenance creates work order and supervise the
execution of work orders, decide on the continuation
of the execution of work orders, work order control
and daily work and take part in entering data into the
tracking system. At the end of the archiving is
performed work order and work diary. Emergency
teams of outside intervention receive the work order
and prepare the tools and materials necessary, execute
work order and print the log. At the end of execution
of the order and print the daily work compile the
minutes.
Fig.6. The objectives of the technical information subsystem

International Journal of Industrial Electronics and Electrical Engineering, ISSN: 2347-6982 Volume-4, Issue-1, Jan.-2016
Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
67
Fig.7. A diagram shows the flow of activities at intervention
(Source: Creating an author based on interviews of
employees observed the company and manual quality
(PQ 9001. Prema EN ISO 9001:2000). (12.2.2007))
Fig.8. Diagram shows the flow of activities such as renovation
of lines and connectors
(Source: Development of an author based on
interviews of company employees and manual quality
(PQ 9001. Prema EN ISO 9001:2000). (12.2.2007))
Fig.8. shows the flow of activities in the repair of
lines and connections. Head of distribution and
maintenance plan is created works of distribution and
maintenance. The manager of distribution and
maintenance plan receives distribution and
maintenance of works and prepares and publishes
work order (with numerous contributions received
doers). After bailiffs carry out work order, the
manager supervises the works, and makes a decision.
Decision determines whether to continue the work
developed further defined work order and that it is
necessary to make corrections or is work performed
satisfactorily. The manager receives work order along
with the log of work of bailiffs and exercises control
and compares them. If the records of documents
compliant, the manager enters the data into the
monitoring system and daily work and work order
archive.
CONCLUSION
Herewe develop a researchedmodel for integration of
information subsystems and wepresent scientific
provenarguments for that integration within the
public company through observed matrix business
technology (Fig.1 and Fig.4).We show how
management information system works with
functioning of all other information subsystems:for
procurement and financial policy,for information
system security, technical information subsystem and
legal information subsystem. Based on the ERP
subsystem we prove important ability how to link all
information subsystems (in departments) within the
public company. We describe in detail each
information subsystem withits main documents flows,
like within technical information subsystem (Fig.7
and Fig.8). The researched model shows the role,
application and integration of hardware, software
(with database), orgware (organization), computer
netware(with networks) and lifeware (with human
resources). We show possible threats for information
system with its organization and with description of
methods of protection of information systems (with
the processes and methods of restoration of the
database). It can be concluded that the security policy
of information subsystems was mainly focused on
data and information protection as the results of the
execution process. On the basis of the matrix business
technology it can be seen how integration of technical
information subsystem used class of data belonging
to the subsystem procurement and sub-sales(of
companies for distribution and supply of gas and
other energy). The paper describes the timing of (sub)
processes, whereterm (path) of the process should be
optimized so as to obtain at the output of processing
results is adequate. Optimizing running times (sub)
process is required on the achievement of planned
results at the exit of the (sub) process and the costs of
running the (sub) process to be equal to or less while
the quality of the output must be higher than it was
before. For information subsystems are given
objectives to be accomplished. Shown are flow charts
of activities on the basis of which can be seen
unfolding sequence of activities during the course of
intervention, rehabilitation of power lines and
connections. A clear diagram of the flow of activities
is a precondition for the construction of an ERP

International Journal of Industrial Electronics and Electrical Engineering, ISSN: 2347-6982 Volume-4, Issue-1, Jan.-2016
Croatian Public Companies for Energy Distribution and Supply: Integration of Information Subsystems
68
system that would support e-business and information
that connects subsystems. ERP systems also have
application in the companies which are used to
support the business. Related information systems are
the model presented in the order of stages in the life
cycle of service delivery.
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