Proceeding of the Electrical Engineering Computer Science and Informatics
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Scalability Measurement of Business Process Model Using Business Processes Similarity and Complexity
Get PDFThe scalability of business process model shows the ability of a system to handle the amount of provided business process activity. In business process management, scalability is used to compare the size of a business process model to other business process models. This research focused on measuring the scalability of business process models. Every business processes were modeled using Petri Net. Petri Net was used as a business process model because of its simple model notation so it can be analyzed mathematically. The scalability of business processes had been done by comparing the similarity of some business processes and their scales. The similarity measurement method proposed were based on structural and behavioral using Jaccard coefficient, whereas the number of elements of the business process model and control flow complexity were used to measure its scale. Then, the scale value (0..1) and the similarity of the business process model was calculated by the specified formula. The result is a scalability value where the greater the value of the scalability, then the growth potential of the business process is also greater
Wood Texture Detection with Conjugate Gradient Neural Network Algorithm
Get PDFThis project explored fundamental methods to find the factors that can be used in classifying and detecting the type of wood. Whereas, the literatures have been reviewed to determine the algorithms developed. Some experiments have been conducted to analyze the model and system. The experiments are based on artificial neural network (ANN) algorithm that used back propagation and conjugate gradient method of training function in the process of identification. The experiments carried out to be more accurate than the ANN system, the result is about 96% accuracy. It is expected the method can be used and applied for the detection of the type and classification of wood in the industrial sector, especially agricultur
Autonomous Navigation for an Unmanned Aerial Vehicle by the Decomposition Coordination Method
Get PDFThis paper introduces a new approach for solving the navigation problem of Unmanned Aerial Vehicles (UAV) by studying its rotational and translational dynamics and then solving the nonlinear model by the Decomposition Coordination method. The objective is to reach a destination goal by the mean of an autonomous computed optimal path calculated through optimal control sequence. Solving such complex systems often requires a great amount of computation. However, the approach considered herein is based on the Decomposition Coordination principle, which allows the nonlinearity to be treated at a local level, thus offering a low computing time. The stability of the method is discussed with sufficient conditions for convergence. A numerical application is given in consolidation the theoretical results
Attack Scenarios and Security Analysis of MQTT Communication Protocol in IoT System
Get PDFVarious communication protocols are currently used in the Internet of Things (IoT) devices. One of the protocols that are already standardized by ISO is MQTT protocol (ISO / IEC 20922: 2016). Many IoT developers use this protocol because of its minimal bandwidth requirement and low memory consumption. Sometimes, IoT device sends confidential data that should only be accessed by authorized people or devices. Unfortunately, the MQTT protocol only provides authentication for the security mechanism which, by default, does not encrypt the data in transit thus data privacy, authentication, and data integrity become problems in MQTT implementation. This paper discusses several reasons on why there are many IoT system that does not implement adequate security mechanism. Next, it also demonstrates and analyzes how we can attack this protocol easily using several attack scenarios. Finally, after the vulnerabilities of this protocol have been examined, we can improve our security awareness especially in MQTT protocol and then implement security mechanism in our MQTT system to prevent such attac
Developing E-Government Maturity Framework Based on COBIT 5 and Implementing in City Level: Case Study Depok City and South Tangerang City
Get PDFThe use of E-Government in achieving good governance has been done by government to serve citizen nowadays. However, not all local government were able to implement it. PeGI that has been used as a benchmark to check government’s readiness rate in implementing E-Government can’t describe all process that need to be assessed in developing local E-Government. Moreover, the emergence of social problems, such as organizational culture and human resource management which inhibits maturation of local E-Government. Therefore, it needs one general maturity framework which capable to guide local government to develop their own E- Government and able to address social problems that arise. This study is the incorporation of previous research results using meta-synthesis method combine with best practice, primary in COBIT 5 that has been adjusted to address a factor of social problems. The design framework begins with identifying the business principle of local government, stakeholders, concerns, requirements, and obstacles; thus, produced a model of maturity framework that has six types stages, eight types dimensions, four types main categories and 69 types sub-category of assessment processes. In the end, after the framework was tested and evaluated, we can conclude this framework already comply with PeGI’s result. From local government who had the best PeGI’s result, they had main problem in social issues and in documenting process. For local government with very low PeGI’s result, they had common constraints related to IT (low understanding of IT governance and IT management, lack of infrastructure, human resources, and understanding how to use IT Master Plan)
Performance Evaluation of IPv6 Jumbogram Packets Transmission using Jumbo Frames
Get PDFIPv6 is an ultimate solution to the Internet address exhaustion. It is believed, the protocol will be requested by not only human but also everything on the earth surface. Furthermore, the improvement on the protocol is important to achieve IP packets transmission efficiently. Processing technology has been improved to become very fast packet processing both in host as well as intermediate systems. The lower layer technologies have supported to transmit Gigabits data per second. However, there is a limitation on transferring large data due to the current MTU on the widely used link layer technology which is Ethernet is still 1500 bytes. This research aims to evaluate performance of IPv6 packets transmission using jumbo frames. The evaluation was done by transmitting IPv6 packets larger than 1500 bytes in Windows operating systems. The results show, transmitting larger packets size using jumbo frame can increase the network throughput by up to 117%
Parameterized Kick Engine for R-SCUAD Robot
Get PDFHumanoid Robot Soccer is an implementation of technology in robotics area that has the ability to mimic human activity to play football. Kicking is one of many abilities that the robot must have to play football nicely. The ability to kick in a various kind of kick also needed to enhance it’s performance in the match.This research was conducted on a 20 degree of freedom humanoid robot soccer named R-SCUAD. The robot was equipped with 20 Dynamixel servo motors as the actuator, an arbotix-pro as a sub-controller and an Odroid XU4 as the main controller. The method developed in this research was based on Darwin-op framework with an enhancement especially on the kick engine. Experiment results showed that there was a corellations between the distance that the ball travelled due to a kick with leg the swing speed of the kick, it can be inferred that a greater swing speed value will yields a greater distance of ball travel. With the leg swing speed of 50 rpm generate average distance 36.58 cm while with a speed of 300 rpm generate an average distance of 329.62 cm. Result also showed that the balancing system developed based on kick angle computation was able to maintain the robot stability up to 25 ° of kick angle
Extra Robotic Thumb and Exoskeleton Robotic Fingers for Patient with Hand Function Disability
Get PDFThis paper presents the development of wearable robot to enhance and to assist people who lost the ability to grasp object. In the developing countries, most persons with hand disabilities still use manual and passive tools, especially for prosthetic and orthotic. We propose a wearable robot as an orthotic device namely extra robotic thumb and exoskeleton robotic fingers as new type of wearable robot for assisting person whose the thumb can not move anymore and the other four fingers has diminished fingers function. The motion of exoskeleton robotic finger has four DOF which each DOF represents the motion of flexion and extension on the fingers. For extra robotic thumb, it has two DOF to represent the motion of circumduction and flexion/extension on the thumb. The robot employs four linear actuators in exoskeleton robotic fingers and uses two micro servos in extra robotic thumb. The robot is designed based on 3D print technology. To assist person in Activity of Daily Living (ADL), five grip patterns are developed in this research. User can command the robot by using electromyography (EMG) sensor that attached on near healthy elbow. Based on the experimental results, the robot can successfully perform object grasping tasks by using the developed five grip modes
A Reactive Path Planning Approach for a Four-wheel Robot by the Decomposition Coordination Method
Get PDFIn this paper, we discuss the problem of safe navi- gation by solving a non-linear model for a four-wheel robot while avoiding the upcoming obstacles that may cross its path using the Decomposition Coordination Method (DC). The method consists of first, choosing a non-linear system with the associated objective functions to optimize. Then we carry on the resolution of the model using the Decomposition Coordination Method, which allows the non-linearity of the model to be handled locally and ensures coordination through the use of the Lagrange multipliers. An obstacle-avoidance algorithm is presented thus offering a collision-free solution. A numerical application is given to concert the efficiency of the method employed herein along with the simulation results
End-User Acceptance Of E-Government Services In an Indonesia Regency
Get PDFThe aim of this research to investigate citizen’s behaviour in e-Government adoption. The final purpose is tounderstanding of the public intention at the local governmentlevel, the of important things to make e-government servicebecome successful is public acceptance and willingness to use egovernmentservices. Therefore this study used a model ofUTAUT base on the unique problems which consists of six mainvariables that affect behavioral intention and use behavior, thesevariables are privacy, trust, performance expectancy, effortexpectancy, social influence, and facilitating condition. At thepractical level, the research aim to guide e-Government policydecision makers to better plan, design and implemet policies andstrategies