Estimating Productivity of Software Development Using the Total Factor Productivity Approach

The design, control and optimization of software engineering processes generally require the determination of performance measures such as efficiency or productivity. However, the definition and measurement of productivity is often inaccurate and differs from one method to another. On the other hand, economic theory offers a well‐grounded tool of productivity measurement. In this article, we propose a model of process productivity measurement based on the total factor productivity (TFP) approach commonly used in economics. In the first part of the article, we define productivity and its measurement. We also discuss the major data issues which have to be taken into consideration. Consequently, we apply the TFP approach in the domain of software engineering and we propose a TFP model of productivity assessment

MARKETING MIX OF SPORTS CENTER HAMR - BRANÍK AND ITS IMPROVEMENT SUGGESTIONS

Název: MARKETINGOVÝ MIX SPORTOVNÍHO AREÁLU HAMR - BRANÍK A NÁVRHY NA JEHO ZLEPŠENÍ Cíle: Cílem této bakalářské práce je analyzovat stávající marketingový mix sportovního areálu Hamr - Braník, pomocí marketingového výzkumu zjistit spokojenost zákazníků a sestavit SWOT analýzu. Ze získaných podkladů a výsledků následně navrhnout konkrétní úpravy jednotlivých složek marketingového mixu, které povedou ke zlepšení kvality poskytovaných služeb, větší spokojenosti a loajalitě zákazníků, zlepšení fungování firmy a jejího hospodářského výsledku. Metody: Analýza marketingového mixu je provedena pomocí marketingového výzkumu kvantitativního charakteru - dotazníkového šetření, situační analýzy a jejího nástroje SWOT analýzy. Abstrakt: Bakalářská práce " Marketingový mix sportovního areálu Hamr - Braník a návrhy na jeho zlepšení" se zabývá analýzou stávajícího marketingového mixu a na základě provedených výzkumů předkládá konkrétní návrhy na jeho změny a úpravy. V teoretické části je definována základní problematika marketingu a jsou zde vymezeny pojmy související s marketingovým mixem v oblasti sportovních služeb. Metodologická část podrobně popisuje metody výzkumu a jejich následnou analýzu. Závěrečnou část bakalářské práce tvoří vyhodnocené a zpracované výsledky marketingového výzkumu - dotazníkového šetření a SWOT...Title: MARKETING MIX OF SPORTS CENTER HAMR - BRANÍK AND ITS IMPROVEMENT SUGGESTIONS Targets: The aim of this bachelor thesis is to analyse current marketing mix of sports center Hamr - Braník, through marketing research find out customers satisfaction and perform SWOT analysis. The ascertained results will be used for improvement suggestions of each marketing mix part, which will lead to better services quality, customers satisfaction and whole company functioning, especially its economic results. Methods: The marketing mix analysis was performed through quantitative marketing research, specifically the questionaire. Situational analysis - SWOT analysis was used as well. Abstract: The bachelor thesis "Marketing mix of sports center and its improvement suggestions" deal with current marketing mix analysis and its improvements based on marketing research results are suggested. The theoretical part defines basic marketing and marketing mix terms considering to the sports environment. The methodological part describes the research methods and its consecutive analysis. The final part of this bachelor thesis includes evaluated marketing research results, specifically the questionaire and SWOT analysis. These results were then used as a base for changes and improvement suggestions of marketing mix of Hamr - Braník...ManagementFaculty of Physical Education and SportFakulta tělesné výchovy a sport

Application of Portable Force Platforms Equipped with a Device for Measuring Position and Orientation

With the development of modern technology for studying the movements of the human body, a large number of new measurement techniques are being applied. However, a complex and expensive device is not always the best one for personal requirements or for professional needs. We havedesigned and tested a new universal way to study the forces under the feet based on force platformsequipped with a device for measuring position and orientation. The device for measuring position andorientation is used to identify the relative positions of the two inexpensive force platforms in 3-D space. Knowledge of the relative positions and orientations of the force platforms allows us to adjust the two force platforms in 3-D space. The technique allows the force platform system for measuring and calculating the forces under the feet and the position of the center of pressure to be set up rapidly. The new technique, based on inexpensive portable force platforms equipped with a device for measuring position and orientation, is used and described for the first time here. This work attempts to describe potential ways of applying the technique

WEARABLE MULTI-SENSOR SYSTEM FOR TELEMEDICINE APPLICATIONS

In this paper, we describe a technical design of wearable multi-sensor systems for physiological data measurement and wide medical applications, significantly impacted in telehealth. The monitors are composed of three analog front-end (AFE) devices, which assist with interfacing digital electronics to the noise-, time-sensitive physiological sensors for measuring ECG (heart-rate monitor), RR (respiration-rate monitor), SRL (skin resistivity monitor). These three types of sensors can be used separately or together and allow to determine a number of parameters for the assessment of mental and physical condition. The system is designed based on requirements for demanding environments even outside the realm of medical applications, and in accordance with Health and Safety at Work directives (89/391/CE and Seveso-II 96/82/EC) for occupational hygiene, medical, rehabilitation, sports and fitness applications

SYSTEM FOR MEASURING KINEMATICS OF VESTIBULAR SYSTEM MOVEMENTS IN NEUROLOGICAL PRACTICE

The article deals with the design of a system for studying kinematics of movement of the vestibular system. Up to now there has not existed a system which would enable to measure the kinematic quantities of movement of the individual parts of the vestibular system within its coordinate system. The proposed system removes these deficiencies by suitable positioning of five gyro-accelerometric units on the helmet. The testing of the system took place under two conditions, during Unilateral Rotation on Barany Chair and Head Impulse Test. During the testing, the system justified its application because the results show that the kinematic quantities of the movement of the left and right labyrinths of the vestibular system differ. The introduced device is mainly intended for application in clinical neurology with the aim to enable the physician to measure all linear and angular accelerations of the vestibular system during medical examinations

METHODS EVALUATING UPPER ARM AND FOREARM MOVEMENT DURING A QUIET STANCE

The article focuses on designing methods for quantitative assessment of the postural stability in a quiet stance by measuring segments of the appendicular skeleton, namely upper and forearms by inertial measurement units (IMU). Although an array of quantitative analysis methods assessing data of postural stability in the quiet stance exist by measuring the head and trunk movement, these methods have not been used to date to assess the behaviour of appendicular skeleton segments, namely the upper limbs. The applicability of methods assessing arm movement during the quiet stance has been verified by comparing the values of healthy subjects performing various stance tasks. The tests determined the quantitative evaluation of acceleration measured on individual anatomical axes. The quantities included: the volume of a convex polyhedron (PV), the volume of confidence ellipsoid (EV) and average velocity (AV) obtained by plotting three accelerations against each other. The most important findings in this study concern significant differences of PV and AV between dominant and non-dominant upper extremities and significant differences of EV, PV and AV between the data measured with a subject's eyes closed and open. Higher values of indicators were in the non-dominant extremities when subjects were measured with closed eyes. Interestingly, statistically significant differences between dominant and non-dominant arm movements were documented in PV and AV cases. This is due to the PV calculation being more sensitive to random deviations, i.e. the range of measured data, since the polyhedron bounds all the measured data, as opposed to the method, where the ellipse bounds only 95% of the measured data. In the case of the AV method, it is due to higher sensitivity to movements corresponding with arm tremors; the AV calculation relates not only to the range of measured data but, above all, to the intensity of data changes in the segment measured in a particular space and time interval. These conclusions demonstrate that it is possible to apply the proposed methods in the assessment of arm movement during a quiet stance since the differences between individual stance tasks and the dominant and non-dominant arms in specific cases of quiet stance have been identified. These conclusions also indicate a potentially more extensive medical application of the proposed quantitative data evaluation obtained from IMU, for example, within the rehabilitation process of injured appendicular skeleton segments. The use of cheaper IMU methods in mobile phones or watches can be of significant benefit in measuring the segmental movement of the appendicular skeleton in quiet stance.  The methods outlined in this paper have remarkable potential in the field of telemedicine

CONTROL AND ANALYSIS OF SIMULATOR AND BIOLOGICAL DATA FROM CAR SIMULATORS

Due to the fact that driving vehicles can be complicated or impracticable, a computer simulator is usually used for training and professional studies. The advantage of this approach is high safety, repeatability, easier feasibility and, of course, lower price. In this work we describe the extension of the car simulator developed by the Faculty of Transport CTU in Prague with specific scenarios for evaluating the cognitive abilities of probands, software for their management and evaluation of data from simulator software and other measured physiological variables such as ECG and arm movement. From the data it is then possible to evaluate the mental and physical condition of the proband and the progress of training. Preliminary results suggest the possibility of using Poincaré analysis for the purpose of assessing cognitive load during potential collision situations. It uses distance assessment from other objects involved in traffic situations

EVALUATION AND TYPES OF ATTACKS WITH STABBING WEAPONS FOR THE DESIGN OF PROTECTIVE EQUIPMENT

Knife attacks have become a global problem in recent years, especially in countries where access to firearms is limited. However, the current situation is that the method of selection and characteristics of protective equipment about the physical attributes of stabbing attacks is not systematically determined. Attacks with stab weapons can be divided according to the weapon's grip, the angle of the attack, and its execution into six different attacks (e.g., underarm action stab, overarm action stab, etc.). Our work presents a survey of methods for capturing and then evaluating the physical parameters of point attacks in specific motion capture and analysis programs. In this work, kinematic analysis was used to analyze motion during a stabbing attack and to obtain data on the kinetic energy of the stab. The measurements were performed with the MoCap system - Vicon Nexus 2.70. The results of the study show that the average value for the straight stab and the underarm stab is almost the same (66.5–67.1 J), while the overarm stab reaches a much higher value (92.8 J). The study aims to determine the kinetic energy of types of attacks, for standards state the level of protection based on energy levels. The results could provide new insights into the current state of protective equipment and energy values ​​in national/international standards

METHODS FOR KINEMATIC ANALYSIS OF HUMAN MOVEMENT IN MILITARY APPLICATIONS: A REVIEW OF CURRENT AND PROSPECTIVE METHODS

Expansion of methods employed in the kinematic analysis of human movement for diagnosing of the physical and mental health of subjects can be traced back to the 1990`s when new information technologies and electronic recording systems started their development boom. Evaluation methods of body movement for the diagnostics of physical and mental health expanded significantly in clinical practice. This study presents an overview of these methods with the focus on how applicable the analysis of human movement can be in military practice, where they are currently marginally used. The aim of this study is to offer some recommendations on how particular methods could be utilized in an army context. This article also suggests the most appropriate methods of quantitative evaluation for posture and motion control in the course of standing, gait and other activities carried out in military training and active duty