Jurnal Computech & Bisnis

59 - 69

Authors: Budiantoro; Rohman, Nanan

Promotion is important thing in retail system obtain for introducing a product, and it same with retail in business software. In promotion there is something can do to introduce our product, with trial system that gift along with a file that has a function as a source for recognize program status are they trial or no. To protect content of license file so it used encryption rijndael technique that have international standardize encryption. Once of newest encryption algorithm is rijndael algorithm. The rijndael algorithm is the winner of open prize contest by NIST (National Institute of Standards and Technology) in 2000. Rijndael algorithm become dominant standarize of cryptografi at least 10 year. Rijndael cryptografi algorithm that desain by Vincent Rijmen dan John Daemen from Belgia is one of famous that used by simetrik key cryptografi. In implementation benefit of rijndael algorithm it will used for secure license key where this key will be used for promotion our product, so it will take to our program that can be change attribute of file like hidden, archive, system, normal or read only in windows operation system. In this study we try to observe about implementation rijndael encryption algorithm in license key process maker that is program that will be tested and will research about steps in encryption and decryption process use rijndael algorithm like addroundkey, subbytes, shiftrows, mixcolumn process and will be research about implementation in license maker program that wil be produce encrypted licensi file use this algorithm.

84 - 97

Authors: Rinawati

The focus of the problem in this research is that there is resistance or refusal of individuals in organizational transformation in PT Telkom Indonesia. This study aims to measure how much influence habits, security, economic factors, fear and selective perception of the individual resistance to the transformation of the organization in PT Telkom Indonesia Tbk, Bandung. In this study there were five independent variables that habit (X1), security (X2), economic factors (X3), fear (X4) and selective perception (X5) and the dependent variable is the resistance of individuals in organizational transformation (Y). This study uses a quantitative approach. The method used is a survey method, the entire population is a corporate employee of PT Telkom Indonesia Tbk, Bandung with a sample of 200 respondents amounted to 67 respondents. Data was collected through interviews, observations, questionnaires, and literature studies. Data analysis techniques used in the study were using statistical regression analysis with the help of the program Amos 5. The research proves that (1) there is a significant and positive effect between habits of the individual resistance to the transformation of the organization (2) there is a negative effect and no significant between security against individual resistance to organizational transformation (3) there is a positive and significant influence between economic factors on individual resistance to the transformation of the organization with a percentage of (4) there is a significant and positive effect between the fear of individual resistance to the transformation of the organization with a percentage of (5) are final and no significant negative effect of selective perception of the individual resistance to transformation the percentage of organizations and (6) together five independent variables have a positive influence on the dependent variable. With Thus can be concluded that the from fifth independent variables in above, the variable which provide influence the most big is the variable a sense of fear and the variable who provide influence the most small is of variable of habit or habit against dependent variable namely the resistance individualized on the transformation organization of in PT Telkom Indonesia Tbk, Bandung.

103 - 112

Authors: Taufik, Whayu; Haryoko

Problems that occur in life too complex or diverse, in this case needs to be examined carefully and thoroughly in finding the solution as well as in finding solutions to problems that occur on the mobile phone requires a software program application form in accordance with the problems that occur in the world business. An expert system is one of the data that can be used to assess any particular field of knowledge. With the system will be described real problem. Based on a special experience and is one of the alternatives to solve the problem. An expert system is an artificial intelligence that combines knowledge and data retrieval to solve problems normally requires human expertise. The purpose of the development of expert systems is actually not to replace the role of humans, but for substitution human knowledge in the form of the system, so it can be used by many people.

130 - 137

Authors: Rosadi, Dadi; Dani

Mental Arithmetic is a method of teaching mathematics to children by using the tool abacus. With human abacus tool can calculate quickly. So some say that the abacus is the first calculator made by man. Grounded in the above, this study will make a program teaching tool (Computer Assisted Instruction) multimedia -based mental arithmetic. Through this teaching tool is expected to facilitate the child in learning about how to count while playing in addition of course to introduce the computer early. In the development of this software authors make observations and analysis for the system that is built according to user needs. In the course of the work, the author uses Adobe Flash CS3 as a game maker application, Adobe Photoshop and Corel Draw X4 as editing images for the background and completeness images in Applications