Accommodation is a word for providing resting and sleeping facilities, with a commercial focus which is used in hospitality and tourism industry[30]. Many of authors (such as Halloway, 65:1994), McIntosh and Goldner, 33:1990, and Sinckler and Stabler (71:1997) have focused on this issue that the accommodation and hospitality services is one of the most complicated and dynamic parts of tourism industry.
Accommodation, whether in the form of multi stars hotel, inn, motel, villa, or shared accommodations, should be available every where, because tourist requires staying in a place for rest and sleep, and around one third of the total costs of traveling is spent for accommodation only. Of different current categories related to hotels, categorization based on star, from one to five, and based on alphabets, from A to E, can be considered, which represent the quality from highest to the lowest[31]. In Iran, the hotels are mostly known by stars.
Investors, developers, and hotel directors require possibility measurement studies. These studies include competitive analysis, expected revenue and costs and information support, showing the revenue making of a hotel in a certain status[32]. Hotels are classified as following:
1- Airport hotel,
2- Commercial hotel,
3- Traditional hotel,
4- Hotel apartment,
5- Personal auto hotels,
6- Hosieries hotel (such accommodations can be found in Iran especially at religious cities, like Mashad and Qom, and actually are religious places smaller than mosque for housing the pilgrimages. They can stay there from one to several nights.),
7- Private places at hotels or camps which have been purchased by some people and are rented for one year,
8- Casinos, besides gambling, some of them provide rooms for resting and sleeping (there is no official casino in Iran, after revolution 1979),
9- Historical monuments: in some countries, historical monuments, palaces and religious places are used for hosting and hospitalizing the guests. In some countries, palaces, churches and historical monuments are used as hotel or accommodation.
Schools and parks are also of temporary accommodation places. In Iran, during some seasons (for example, summer), schools are used for accommodating the travelers.
Hotel owners should provide the possibility of serving foods and beverages, besides providing accommodation, which is their main goal.
Moreover, those hotel owners are more successful who are able to recognize the taste of their guests from different countries and know at least some words from their language. Hotels are either owned by individual, by an international company, or a domestic company or organization, for example, a ministry, and are directed either as state-private or independent but under the umbrella an international company or rented by it.
During last decades, inte