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Penggunaan akses internet dengan metoda dial up pada suatu perusahaan internet sering dibatasi oleh anggaran dana yang  sudah ditetapkan. Dengan demikian diperlukan  suatu kontrol dalam membatasi pemakaian  pulsa  internet  agar  tidak  melebihi  anggaran  yang  sudah  ditetapkan. Maka  diperlukan  suatu program  aplikasi  untuk mengontrol  akses  internet  secara  dial  up.  Pengembangan  aplikasi menggunakan software development Visual Basic 6.0 dengan database Microsoft Access dan memanfaatkan script Win32 Internet API  (WinInet API)  pada  file wininet.dll  yang  sudah  tersedia  pada Operating  System Windows 98/2000/XP. Script Win32 Internet API merupakan salah satu bagian dari funsi – fungsi internal windows yang disebut dengan API (Application Programmer Interface). API berfungsi sebagai interface / jembatan antara windows dengan programmer. Fungsi ­ fungsi API dapat diakses oleh programmer melalui file ­ file library API untuk diaplikasikan pada suatu program. Fungsi aplikasi adalah untuk mengontrol penggunaan internet  berdasarkan  pada  pemakaian  pulsa  /  waktu.  Secara  umum  aplikasi  juga  dapat  digunakan  oleh pengguna internet dengan sistem sambungan dial up.

Decision Support System couple the intellectual resource of individuals with the capabilities of the computer to improve the quality of decision. It's a computer based support system for management decision makers who deal with semi-structured problem. An integrated decision support system for use in an machine mollen product has been developed. It incorporates a linear Programming model that represents the contribution optimal and optimizes the production water pump and mollen machine. An optimization model is performed using a management scient model called linear programming approach in older to determine media selection. To use this model, the DSS needs ti interface with another software. Mathematical Programming is a technique used in mathematical models, particularly optimization models, to assist in decision making. The Simplex Method is "a systematic procedure for generating and testing candidate vertex solutions to a linear program." (Gill, Murray, and Wright, p. -137) It begins at an arbitrary corner of the solution set. At each iteration, the Simplex Method selects the variable that will produce the largest change towards the minimum (or maximum) solution. The  development of computer programs to be used as Decision Support Systems involves several tasks such as mathematical modeling, technical and data collection and development of a user friendly interface.

Object-Oriented Programming is innovation in development for software the last decade, moreover to appear visual programming language models. OOP concept needed for implementation components used in application preparation and preparation new component, so that to appear visual programming language models, preparation new component in veil VB programming is news interesting, except for to fill requisites unique new component, so using plentiful OOP concept.

This paper presents n conceptual model of Internet-based business-consumer relationship marketing with a focus on the context, content, and the process of relationship development from the consumer's perspective. The model con be divided into two broad groups. The first group is a set of contextual factors (environment, parties to the relationship, consumption task) that influence relationship development. The second group is the content and process of relationship development that can be viewed via three interrelated conceptual phases: consumer motives to seek interaction, exploration and interaction, and relationship bonding. With the rapid growth of E-commerce and on-line consumer shopping trends, the importance of building and maintaining customer loyalty in electronic marketplaces has come into sharper focus in marketing theory and practice. This paper also to present a conceptual framework of "e-loyalty" and its underlying drives.