Definitions and concepts adopted in the survey :

1 - Householder:
 He Is one adult family member who considered as the family's chairman, he often responsible for directing the expenditure policy for the family of the aggregate income of their members. It doesn't require to be the oldest of his family members or the most income, or of a particular gender, also it doesn't require for him to be related to all of the family members.
2 - Hosehold:
  Is one or more individuals who share both the housing and living arrangements, even if they are not relatives.
3 - Educational status:
  Educational degree obtained by the individual which is either( illiterate) he does not know reading or writing or he is (Literate ) but he did not read in Arabic or (educated ) by the different stages of education.
4 - Relation to labor Force:
  MIt means the relationship among individuals who are able to work inside or outside the home as well as the case of individuals who do not work for reasons as if the individual is a were student or he is unable to work.
5 - Economic activity:
  : It means the field in which the individual carries out his career.
6 - Condition:
  A condition in which the individual suffered due to his residence in the building because of unavailability of healthy dwelling.
7 - Dwelling:
  Is a building or part of building originally intended for one family or more, it has a separate entrance (or more) that enable occupants to enter and exit without having to pass through another dwelling and housing types are as follows:
      1 . Villa: It is an independent residential unit consists of one floor or more connected with inner ladder, usually it surrounded by an external fence that includes the building and surrounding area which may be a garden.
      2 . Apartment in a building : Is part of a building consisting of one or more rooms with special facilities and closed by external door ,this apartment definitely is a part of building that includes two residences at least. This apartments can be accessed through a common entrance or ladder connects between flats or floors.
      3 . Traditional house : It consists of successive or adjacent rooms and facilities mostly punctuated by courtyard which is a part of the dwelling and it sometimes surrounded by an external fence, it may also consists of more than one floor.
      4 . Public housing : It consists of one or more rooms with the facilities, sometimes punctuated by a courtyard and be within adjacent residential communities which definitely have one floor.
      5 . Rural house : It consists of one or more rooms with adjacent facilities are often successive, which is always one and wholly or partially surrounded by an external fence.
      6 . Farm house : It is usually built inside farms for the families to reside in either permanently or seasonally.
8 - Dwelling floor area:
  It is the area of the dwelling, including all floors which are used for the housing purposes by square meter.
9 - Number of rooms in the dwelling:
  It is the total number of rooms in the dwelling. 
10 - Building material for external walls:
  It deals with building materials of external walls of the buildings, where there is a dwelling. In the case of using more than one material we take the most used. It may be reinforced Peyton or cement block or cement block with columns or stone that goes into the building material rather than decorative stone which cover the building or from clay or wood and so forth.
11 - Age of dwelling:
  It is the actual number of years since its establishing the first time, even if it restored, or add extensions to it after its establishing.
12 - Dwelling tenure:
  We write the appropriate type of the tenure and it classified as follows:
      1 . possessed :: If the dwelling is owned by the head of the household who reside in the dwelling or for one of its members.
      2 . Furnished house Rent : If the dwelling is rented with furniture.
      3 . Unfurnished house Rent : If the dwelling is rented without furniture.
      4 . Other : Other than the previous case as if it is a return for work or assistance or entitlement or mortgage or etc…
13 - Mean of lighting in the dwelling:
 Represents the source used to provide the dwelling with electricity according to the following methods:
      1 . Public network electricity: If the dwelling is connected to the public network of electricity.
      2 . Self- electricity: In the case of providing the dwelling with electricity by a private generator for the household
      3 . Other: Providing with electricity by other ways not mentioned previously.
14 - Water supply system for the dwelling:
  Represents the source used to provide the dwelling with water according to the following methods:
      1 . A A connected public network: If the dwelling is connected to public network of water.
      2 . Common source: when the source is public network or any governmental project to provide the communities with water by common faucet then transmitted it to the dwelling in different ways.
      3 . Collective well: that means providing water through a well does not belong to a particular household but to the total population present in the agglomeration and the water is transmitted to the dwelling in different ways. .
      4 . Special well for the household : in the case of accessing water from a well that located inside the dwelling or its surroundings.
      5 . Other: includes providing water in ways not mentioned before such as a buying from tanks ……etc.
15 - Mean of sanitation:
  Represents the source used for disposal of wastewater according to the following methods:
      1 . Public sewerage system: this means that the house is connected to the public sewerage system buried under the ground.
      2 . Artistical pit: discharging of waste water by digging an artistical hole for this purpose.
      3 . Open sewerage: discharging of wastewater by open channels.
      4 . There are no means.
16 - Facilities:

  Facilities are considered the basics of the regular building and consist of:
Sink requirements – gas – cooking utensils – pantry - separate bathroom used for bathing and its requirements – separate W.C.
17 - Waja'eb:
  They are areas surrounded the dwelling such as parks or spaces or terraces……
18 - Services available in the region:

  These include the presence of health centers , hospitals, nurseries, schools, and their distance from the dwelling.