MODELING AND SIMULATION OF A NETWORK ENVIRONMENT OVER SINGLE AND MULTIPLE LINKS

MODELING  AND SIMULATION OF A NETWORK ENVIRONMENT OVER SINGLE AND MULTIPLE LINKS

CHAPTER ONE/INTRODUCTION

Background to the Study

Considerable research has been conducted to model and quantify the performance of heterogeneous services and technologies (e.g (Kawasaki et al., 2006; Tsalgatidou et al., 2006; Liu et al., 2006). Accurate measurements and analyses of network characteristics (remote data transfers) are essential for robust network performance and management. Evaluating the performance of a computer networking usually involves constructing an appropriate model to predict the heterogeneous environment behaviour via simulation model. For example, several flow-level network traffic models have been proposed to describe/stimulate (Fred et al., 2001; Cong and Wolfinger, 2006). These models have been used to study fairness, response times, queue lengths and loss probabilities under different assumptions and using a variety of mathematical techniques. Queuing theory has been widely used to model and analyze the network performance of complex systems (Puigjaner, 2003) in contrast to other studies in the literature (Barakat et al., 2002; Bu and Towsley, 2001; Kherani and Kumar, 2000). This simulation model can be used to generate representative packet traffic (one-way delays and throughput) in a live network environment or in a simulated environment.

Moreover, in the future, the integration of data and communication services, almost every Internet Ready device will be a communicable device (Zhao et al., 2005). With the availability of this infrastructure, users are now demanding and expecting more services (Barakat et al., 2003; Bu and Towsley, 2001). Convergence is pushing towards an environment that requires new investment in infrastructure and able to support the delivery of rich services (various services), applications and content (Podhradsky, 2004; Nogueira, 2006). Network deployment is growing increasing complex as the industry lashes together a mix of wired and wireless technologies into large-scale heterogeneous network architecture and as user applications and traffic continue to evolve (Heidemann et al., 2001). The successful evolution of the Internet is tightly coupled to the ability to design simple and accurate models (Barakat et al., 2002). Many factors may contribute to the congestion of network interface, such as a heavy load in the network that usually generates higher traffic (Chang and Hon, 2002). Thus, this research is critical to be conducted in order to predict and measure of remote data transfers in heterogeneous environment.

Aims and Objectives

The main objectives of this study is on Modeling  and  Simulation of a network environment over single and multiple links.

The following are the specific objectives;

  1. predict the performance of various services in order to aid technology assessment and capacity planning
  2. predict the expected behavior of new services and designs through qualitative or quantitative estimates of network performance;
  3. assist network administrator to prepare, propose, plan and design network topology more effective and systematic and
  4. conduct What-If analysis for evaluating heterogeneous network environment performance.

Research Questions

This study posits several research questions:

  1. what is the performance level of the remote data transfers?
  2.  Is the simulation model for evaluating and measuring the heterogeneous (multiple links) environment performance effective?
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DESIGN AND IMPLEMENTATION OF A COMPUTERIZED AIRPLANE PASSENGER MANIFEST INFORMATION

DESIGN AND IMPLEMENTATION OF A COMPUTERIZED AIRPLANE PASSENGER MANIFEST INFORMATION  A CASE STUDY OF SOSOLISO AIRWAYS

CHAPTER ONE/INTRODUCTION

1.1     OVERVIEW OF THE EXISTING SYSTEM

This passenger manifest information (PMI) is a kind of records that help individual flight to organized their passenger in a flight. This record in the flight. This record help them to know the members of passenger in the flight, without their records they can known the numbers of passenger in the flight. So the passenger manifest information contained the:

  • Full name
  • Date of birth
  • Social security number
  • Emergency contact
  • Telephone number

From passenger traveling on flight with sosoliso airline (e.g., during the sosoliso airline disaster family assistance act of December 10th 2005. this law was passed to address the difficult associated with notification of the families in the aftermath of sosoliso airline crashes). This proposal is also being issued to fulfill a recommendation contained in the initial and final report of families that has be affect in the crashes. This passenger manifest information (PMI), is used to point out identify data elements  that may point to a passenger who represents a security risk. Once highlighted, analytical specialists can them manually review these records and identify those  passengers who should be subjected to additional screening upon their arrival.

 

  • DESCRIPTION AND ANALYSIS OF THE EXISTING SYSTEM

This study is all about the passengers manifest information (PMI) which is a records of individual passenger in the flight.

The researcher visited sosoliso airline and find out that the passenger manifest information contained the records of passenger (e.g., full name, date of birth and or social security number, emergency contact and telephone number). Which help them to organize their flight.

The examination of the existing system to determine what must be accomplished and the best method of accomplishing the necessary operation is know as SYSTEM ANALYSIS. The stages involved in the system analysis are listed below.

  • The type of processing to be done by the system
  • The input data “captured’ for the system
  • The output required
  • The file which could be kept and used
  • The nature of processing i.e. its logic procedure stage and frequency.

 

  • METHOD OF DATA COLLECTION

The researcher visited sosoliso airline and find out that the passenger manifest information (PMI) contained the records of passengers, which help them to organize their flight.

SOURCE OF DATA

This data is used in this research work were collected from primary and secondary source hence, they comprise of the following sources:

  • Direct interview in (sosoliso airline)
  • The internet
  • Unpublished books (project)
  • Pamphlets of general knowledge.

1.4     INTERVIEW METHOD

The researcher use the method of unstructured interview to carried out the research to know about the passenger manifest information in sosoliso airline. It ash one of the staff in the engineer department, the researcher know that the passenger manifest information contain the name, date of birth, contact address etc, of a passengers that booking for ticket to travel in a flight in the sosoliso airline company.

 

REFERENCE TO WRITING TEXT

The researcher used this material to carried out it’s project work. This material are:

  • Sosoliso airline company (engineer department)
  • Unpublished books (project)
  • From the federal register: March 13 1997 volume 62, number 49. online via GPO access (wais.access.gpo.gov)
  • Presented by the IATA: Agenda items: facilitation and security of travel documents and boarder control 2.4: advance passenger information (API) airline reservation system and passenger name record (PMI) access by states.

 

INPUT ANALYSIS

The necessary input to the system includes the following:-

  • Full name
  • Date of birth
  • Social security number
  • Emergency contact
  • Telephone number

The full name of individual passenger that booking for the flight indicates the records of passenger that travel in sosoliso airline.

The date of birth. Is the day that the passenger was born in that particular city or country.

The social security number: is a kind of information that no two person have it belong to one person alone.

Emergency contact: Is the places of the passengers that booking for the flight in Sosoliso airline.

Telephone number: This is a kind of information that can be used to reach the passenger that booking in sosoliso airline of this is globalization network that has be used to reach people in different places. Below is a diagrammatic representation of the passenger manifest information in Sosoliso airline Enugu”.

Where are you going?

I’m flying: from To

Options: class

Return one way

Class: Economy first class

WHERE ARE YOU GOING

Leave: Day month morning coming back: Day month evenining number of passengers:

Adults (over 12 years) 1 children aged 2 – 12 years 0 infants under 2 years 0

TITLE SELECT A TITLE

First name:

Surname:

Children name (if any):

PROCESS ANALYSIS

The process involve the transformation of available input data inot useful output in this particular study, this entails matching projects with their appropriate passenger manifest information in such a way as to satisfy the criteria of requirements and suitability: Thus, a project is picked from the scheduled proposed project list, its passenger information requirements matched against the passenger manifest information attributes of various location until a perfect already obtained. If a similar project already exists in the location that matched another and they may be good match is used a s a substitute site for the project.

OUTPUT ANALYSIS

After processing using the necessary input data, the output from the system include: the passenger information such has, full name, date of birth emergency contact, social security number, and telephone number.

PROBLEMS OF THE EXISTING SYSTEM

The existing system has numerous disadvantages and inherent dangers.

  • Basic Approach: Passengers would be defined broadly to include confirmed, ticketed passengers as well as standing bys, walk-ups, lap infants, those rerouted from another flight or our carrier, and non-revenue passengers. At this time, we expect that the sosoliso passenger manifest information would consist of passenger:
    1. Full name;
    2. Date of birth (DOB)
  • Social security number;
  1. Contact name
  2. Contact telephone number.

Further, we envision the information would be transmitted to the department of transportation (DOT) and the national transportation safety board (NTSB) as soon as possible, but no later than three hours, after the sosoliso disaster.

  • Frequent flyer information and a sosoliso passenger manifest information requirement. We understand that more extensive passenger information is kept on hand for frequent flyers, and that frequent flyers account for over one-half of all passengers traveling in sosoliso airline.
  • Privacy considerations and fraud issues. What privacy issued are raised by a sosoliso passenger manifest information requirement as outlined above? Will manifest information be subject to subpoena by private litigants and law enforcement agencies? What fraud issued, if any, are raised by implementing the above sosoliso passenger manifest information requirement? What are the implications for personal privacy that would result if sosoliso airline were required to collect any of the following information from passengers: full name, date of birth, social security number, emergency contact and phone number? What types of safeguards, if any, should be placed upon the passenger manifest information that is collected by sosoliso airline.
  • Coverage of sosoliso passenger manifest information requirement and the differing implications, if any, for different types of airline that would be covered. We envision and charter operators would be covered by a sosoliso passenger manifest information requirement”, scheduled and charter airline, as well as air trails and commuter.

 

JUSTIFICATION OF THE NEW SYSTEM

(1)     It satisfies the user requirement at the right time with in an acceptable level of accuracy

(2)     It provides an effective security measure in order to avoid loss of stored data in the master file and also avoid fraud.

(3)     It provides an adequate coding system to aid identification, comparison sorting, unification and elimination of ambiguities (error).

(4)     It provides check and control, which are capable of detecting and dealing with exceptional circumstances and errors.

(5)        It provides an adequate insight on policy matter and their effects on the passenger manifest information requirement systemDownload Full Material-N5000

Best Practices Nursing Guideline in Phlebotomy for Patient Safety and Quality Improvement

Abstract

Phlebotomy has practiced for centuries and still one of the most common invasive procedures in health care settings. Each step in this procedure affects the quality of the specimen and is thus important for preventing laboratory errors0, patient injury and even death. Unfortunately, phlebotomy poses risks for nurses and still common to carry out dangerous of practices known to increase the risk of needle-stick injury and transmission of blood borne diseases. The touch of a finger to verify the location of a vein before insertion of the needle increases the chance that a specimen may contaminated. This can cause false blood culture results, prolong hospitalization, delay diagnosis and cause unnecessary use of antibiotics. Clinical nursing errors in completing forms and identifying patients are common, costly and preventable. Other adverse effects for patients are common; they include bruising at the site of puncture, fainting, nerve damage and haematomas. The aim of the study was to investigate the effect of developed best practices nursing guideline in phlebotomy on patients’ safety and quality improvement. The research hypothesis, implement the developed best practices nursing guideline for phlebotomy will improve the patient safety and quality improvement. Method: A quasi- experimental design utilized in this study. A convenient sample of 80 patients divided equally into study and control groups, 40 patients each. The study conducted at all inpatient medical departments of the Main University Hospital at Alexandria, Egypt. Data was collected using Phlebotomy Nurses’ Performance Observational Checklist consists of three parts. Results showed that there was high incidence of phlebotomy local complications among the control group patients. From the investigators observations, this result may be due to lacking of nursing skills related to different aspects of phlebotomy. In addition, it may be due to inadequate basic education, unavailability of orientation and in-service training programs as well as postgraduate courses. In conclusion, applying the best practices nursing designed guideline for patient safety and quality improvement was effective in phlebotomy.Illustrated best practices nursing guideline should be available as a reference for health care settings recommended [Heba Abdel Mowla Ahmed, 2Lobna Mohamed Gamal Ali. Best Nursing Practices in Phlebotomy Patient Safety and Quality Improvement].

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Contents

Design and implementation of staff appraisal/promotion system

Design and implementation of staff appraisal/promotion system

CHAPTER ONE

INTRODUCTION

1.1 BACKGROUND OF STUDY

According to Thompson (2008), Promotion is the advancement of an employee’s rank or position in an organizational hierarchy system. Promotion may be an employee’s reward for good performance, i.e., positive appraisal. Before a company promotes an employee to a particular position it ensures that the person is able to handle the added responsibilities by screening the employee with interviews and tests and giving them training or on-the-job experience. A promotion can involve advancement in terms of designation, salary and benefits, and in some organizations the type of job activities may change a great deal. The opposite of a promotion is a demotion.

A promotion can involve advancement in terms of designation, salary and benefits, and in some organizations the type of job activities may change a great deal. In many companies and public service organizations, more senior positions have a different title: an analyst who is promoted becomes a “principal analyst”; an economist becomes a “senior economist”; or an associate professor becomes a “full professor”. The amount of salary increase associated with a promotion varies a great deal between industries and sectors, and depending on the what parts of the hierarchical ladder an employee is moving between. In some industries or sectors, there may be only a modest increase in salary for a promotions; in other fields, a promotion may substantially increase an employee’s salary.

The same is true with benefits and other privileges; in some industries, the promotion only changes the title and salary, and there are no additional benefits or privileges (beyond the psycho-social benefits that may accrue to the individual). In some not-for-profit organizations, the values of the organization or the tightness of funding may result in there being only modest salary increases associated with a promotion. In other industries, especially in private sector companies, a promotion to senior management may carry a number of benefits, such as stock options, a reserved parking space, a corner office with a secretary, and bonus pay for good performance. The degree to which job activities change varies between industries and sectors. In some fields, even after an employee is promoted, they continue to do similar work. For example, a policy analyst in the federal government who is promoted to the post of senior policy analyst will continue to do similar tasks such as writing briefing notes and carrying out policy research. The differences may be in the complexity of the files that the individual is assigned to or in the sensitivity of the issues that they are asked to deal with. In other fields, when an employee is promoted, their work changes substantially. For example, whereas a staff engineer in a civil engineering firm will spend their time doing engineering inspections and working with blueprints, a senior engineer may spend most of their day in meetings with senior managers and reading financial reports. In symphony orchestras, when a musician such as a violinist is promoted to the position of concertmaster, their duties change substantially. As a violin player, the individual played the music as part of the violin section. As a concertmaster, the individual plays solo parts, decides on the bowings and interpretation of the music, and leads the violins during performances. Different organizations grant the hiring and promoting managers different levels of discretion to award promotions. In some parts of the private sector, the senior management has a very high level of discretion to award promotions, and they can promote employees without going through much procedures or formalities such as testing, screening, and interviewing. In the public sector and in academia, there are usually many more checks and balances in place to prevent favoritism or bias. In many Western public service bodies, when a manager wants to promote an employee, they must follow a number of steps, such as advertising the position, accepting applications from qualified candidates, screening and interviewing candidates, and then documenting why they chose a particular candidate. In academia, a similar approach is used, with the added safeguard of including several layers of committee review of the proposed promotion using committees which include members of other faculty and experts from other universities.

In Cross River University of Technology (CRUTECH), promotion is done annually and commences in April. All department heads submits a comprehensive assessment of the teaching administrative abilities of each staff which includes result of students’ evaluation. Staffs are considered for promotion if they have spent up to about three years.

There is no computerised system which takes in the criteria for promotion in CRUTECH to determined if a staff is fit for promotion or not. All promotion documents are computed manually and pose a lot of problems when promotion is to be given to staffs. There by there is need for the development of a computerised promotion system so as to eliminate the manual promotion determination methods being presently under taken by CRUTECH.

1.2       STATEMENT OF PROBLEM

The present promotion system of Cross River University of Technology, Calabar is done by manual means, whereby a committee (promotion and appointment committee) is form to consider if a particular staff is reach or satisfied all the promotion criteria. This promotion process takes a whole lot of time in doing these, looking into the promotion criteria and secondly, they is bound to be a bias attitude of the committee to favour their own personal interest or candidate and as such, lot of partial is involve in the manual process and this is a big problem to be tackled

1.3       AIM AND OBJECTIVE OF THE STUDY

The aim is to design and develop an automated staff promotion software to accomplish the following :

  1. Reduce the bias action of the promotion committee members.
  2. Reduce the long process involve in the conducting interview

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