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In general, a mobile payment system in mobile e-commerce must have high security so that the user can trust it for doing business deals, sales, paying financial transactions, etc. in the mobile payment system. Since an architecture or payment model in e-commerce only shows the way of interaction and collaboration among users and mortgagers and does not present any evaluation of effectiveness and confidence about financial transactions to stakeholders, in this paper we try to present a detailed assessment of the reliability of a mobile payment model in the mobile e-commerce using formal models and colored Petri nets. Finally, we demonstrate that the reliability of this system has high value (case study: a secure payment model in mobile commerce presented at the International Conference) [18]. Keywords: Reliability, Colored Petri Net, Assessment, Payment Models, M-Commerce.

Due to the significant growth in the usage of cell phone by customers and its availability, this tool can be considered such the best tool. For e-payment for implementing the mobile payment service, other objects and players should be considered such as banks, operators, service providers and the used technology as the effective interaction role. In addition, for effective optimization of parameters for implementing the mobile payment solution a proper model of business should be used. First of all, in this experiment, different business models in the field of mobile payment and the role of each stakeholder in these models and their positive and negative points are discussed. Moreover, by using method of Multiple Criteria Decision Making, four famous business models of the world are evaluated and the result of this evaluation highlights that the cooperation model is the most Appropriate Model in terms of mobile payment methods.

Practical use of SJF scheduling algorithm (SPN or Shortest Process Next), which is one of the best scheduling algorithms, always has some difficulties because when an operating system wants to execute a process, it does not know the execution time of it. After running, the exact execution time of that process would appear. Consequently, for calculating and estimating the execution time of a process before running, many algorithms were introduced. In this paper, a new algorithm with more efficiency is introduced. This algorithm is able to estimate the execution time (next CPU-burst time) of a process based on past behavior by using the intelligent fuzzy system.

Availability is an important feature of a mobile payment system in the banking industry. It should be also capable of providing services to the users throughout the week without interruption. In general, a payment system in mobile commerce should have high reliability and availability to enable users and stakeholders to do business transactions, buying and selling and pay for financial transactions with a high degree of reliability. Since an architecture or a payment model in e-commerce only displays the way of interaction and collaboration between users and mortgagors and provides no assessment of the performance, reliability and availability of the system to the stakeholders, thus, in this study, we managed to provide an accurate assessment of the availability of a mobile payment model at the software architecture level by employing a colored petri dish using the official models. The methodology is as follows: First, we converted the studied model into an integrated modeling language (UML). However, the semi-official nature of this language has made it unable to assess all non-obligatory needs. To achieve this goal, an applicable model must be created from these graphs. Finally, by converting the applicable model into the official language and using the Petri Net networks and "CPN Tools" tool, an accurate assessment of the availability level would be provided.