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Abstract-In this paper we propose a methodology for the modeling and analysis of ad hoc networks composed by a large number of nodes moving among geographical regions. This methodology uses compositional construction of stochastic Petri nets (SPN) for building the model which allows for specifying the model and the required performance indices at a high level of abstraction. As our aim is to consider real scenarios with several geographical regions and non-trivial user behavior in each region, the size of the state space of the model can easily grow too large to analyze with exact analytical approaches or even with simulation. For this reason, we propose to carry out the analysis by constructing the mean field approximation of the behavior of the SPN. The approximation is provided by a set of ordinary differential equations (ODE) that can be derived automatically from the SPN and can be solved numerically with low computational effort even for large models.The methodology is illustrated on a case study, modeling application spreading in a mobile environment. It will be shown that the approximate results obtained by the mean field approach capture well the behavior of the system.

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While it is common practice to interrupt various programs – even movies – on our television sets for advertisement breaks, the same could be inconceivable for the average person in a movie theatre setting, or in a home movie watching scenario where the interruption would come in the middle of a previously purchased (or one provided through a subscription based streaming service) movie. The relevance of this scientific problem is that movies and the interest they generate in either mass or niche segments of consumers represent an excellent opportunity for any company to use in the development of their promotional campaign. The reason for this opportunity is that movies themselves are already equipped with many unique features (examples being the genre or the talent involved on either side of the camera) that aid tremendously in the practical implementation of targeted marketing, as in many cases they too are aiming to attract certain consumer segments. The main purpose of the literature study is to sort the various seemingly ordinary advertisement methods by the types of movie mediums they are attached to, to showcase their main features, possibilities and restrictions which was conducted by summarizing the arguments and counterarguments within the scientific discussion on the topic. The systematization of literary sources and approaches indicate that we are witnessing the effects of the changing movie consumption mechanisms – which mostly occur due to technological changes – on the advertisements that are bounded to them. Last, but not least, through the reassessment of previous studies, we aim to measure the effects of advertisements coming from various mediums and newer solutions have had on consumers, what is the consensus on them in the current scientific discussion and how these might have changed over the past years. The results of the study can be useful for content creators and marketers to have a better grasp on how they could and should approach various kinds of consumer markets. All the while it will serve as one of the main pillars in a future empirical research on consumer behavior regarding movie consumption. Keywords: consumer behavior, cultural marketing, movie consumption, advertising.

One of the features of films compared to other cultural products is the possibility of their use for advertising and information activities and influence on the formation of needs and audience preferences, as well as different patterns of consumer behavior. The urgency of this scientific problem is that the sale of cinema products today is impossible without a marketing system. The application of different marketing strategies depending on the specific tasks allows a differentiated approach to each project and achieve the goals both from the standpoint of contribution to the development of culture and in terms of obtaining economic effects from the film industry. The main purpose of the study is to substantiate and determine the features of the use of marketing tools in the film industry. The study of marketing services for film production was carried out in accordance with the logical structure of the concept of “7P” (product, promotion, location, price, staff, physical environment, and the process of providing services). Recommendations for the marketing of services in the film industry: first, the choice of methods for watching movies depends on the type of media environment (traditional, digital), secondly, the choice of ways to obtain movies depending on their genre and subject, thirdly, in order to effective promotion of content and perception of the film identified the basic requirements for its trailer. The article proves that the marketing of services in the film industry is aimed not only at meeting the socio-cultural needs of the population but also at the commercialization of the industry, ensuring audience access to films, as well as creating market conditions for its sustainable development. The research materials are the basis for further research on current issues of modern film practice, integration of film production and film consumption. Keywords: movie consumption, service marketing, consumer behavior, cultural marketing.

Performance analysis can be carried out in several ways, especially in case of Markovian models. In order to interpret high level of abstraction, we often use modeling tools like timed Petri nets (TPNs). Although some subclasses of TPNs (e.g. stochastic Petri nets (SPNs) [17,19]) can be handled analytically, a general timed Petri net is hard to evaluate via numerical analysis 1 . However, the simulation of SPNs or deterministic and stochastic Petri nets (DSPNs) [16] are supported by many known tools (see, e.g. [3,20]), it is hard to find a simulation tool for timed Petri nets with generally distributed (i.e., particular but arbitrarily chosen) firing times 2 .In this paper, we present TiPeNeSS (Timed Petri Net Simulator Software) which supports the simulation of timed Petri nets containing transitions with generally distributed firing delays. The input of the software (the Petri net and the parameters) is defined in an XML file, what allows us to generate results in batch mode. Besides, we describe a case study in which we optimize the frequency of the regular maintenance in a manufacturing process.