The concept of hospitality exchange, also known as "accommodation sharing", "hospitality services" (short "hospex"), and "home stay networks", "home hospitality" ("hoho"), refers to centrally organized social networks of individuals, generally travelers, who offer or seek accommodation without monetary exchange. These services generally connect users via the internet.

In 1949 Bob Luitweiler founded the first hospitality service called Servas Open Doors as a cross-national, nonprofit, volunteer-run organization advocating interracial and international peace. In 1965 John Wilcock set up the Traveler's Directory as a listing of his friends willing to host each other when traveling. In 1988, Joy Lily rescued the organization from imminent shutdown, forming Hospitality Exchange.

In 1966, a hospitality service for Esperanto speakers called Programo Pasporto was created. This became Pasporta Servo in 1974.

Construction is the process of creating and building infrastructure or a facility.[1] It differs from manufacturing in that manufacturing typically involves mass production of similar items without a designated purchaser and construction is typically done on location for a known client.[2] Construction as an industry is six to nine percent of the gross domestic product of developed countries.[3] Construction starts with planning, design, and financing and continues until the project is built and ready for use.

Far from being a single activity, large scale construction is a feat of human multitasking. Normally, the job is managed by a project manager, and supervised by a construction manager, design engineer, construction engineer or project architect. For the successful execution of a project, effective planning is essential. Those involved with the design and execution of the infrastructure in question must consider the zoning requirements, the environmental impact of the job, the successful scheduling, budgeting, construction site safety, availability and transportation of building materials, logistics, inconvenience to the public caused by construction delays and bidding, etc.

Restaurants may be classified or distinguished in many different ways. The primary factors are usually the food itself (e.g. vegetarian, seafood, steak); the cuisine (e.g. Italian, Chinese, Japanese, Indian, French, Mexican, Thai) and/or the style of offering (e.g. tapas bar, a sushi train, a tastet restaurant, a buffet restaurant or a yum cha restaurant). Beyond this, restaurants may differentiate themselves on factors including speed (see fast food), formality, location, cost, service, or novelty themes (such as automated restaurants).

Restaurants range from inexpensive and informal lunching or dining places catering to people working nearby, with simple food served in simple settings at low prices, to expensive establishments serving refined food and fine wines in a formal setting. In the former case, customers usually wear casual clothing. In the latter case, depending on culture and local traditions, customers might wear semi-casual, semi-formal or formal wear. Typically, customers sit at tables, their orders are taken by a waiter, who brings the food when it is ready. After eating, the customers then pay the bill.

Maid service, cleaning service, apartment cleaning and janitorial service are terms more modernly describing a specialized outside service, providing a specific service to individuals, businesses, fraternal clubs and associations as well a home.

These services may be different from what is generally thought to be the historically prevalent services performed by a maid, and these services may be provided by both male and/or female individuals.

Stylized drawing of a maid on a Works Progress Administration poster In current descriptive, "maid" is a female employed in domestic service.[1] Once part of an elaborate hierarchy in affluent homes and profitable businesses, today a maid may be the only domestic worker that upper and even middle-income households can afford, as a household domestic-help employee. Maids perform typical domestic chores such as cooking, ironing, washing, cleaning, grocery shopping, walking the family dog, and tending to the household children.

A security officer (or security guard) is a person who is paid to protect property, assets, or people. They are usually privately and formally employed civilian personnel. Security officers are generally uniformed and act to protect property by maintaining a high-visibility presence to deter illegal and inappropriate actions, observing (either directly, through patrols, or by watching alarm systems or video cameras) for signs of crime, fire or disorder; then taking action and reporting any incidents to their client and emergency services as appropriate.

Until the 1980s, the term watchman was more commonly applied to this function, a usage dating back to at least the Middle Ages in Europe. This term was carried over to North America where it was interchangeable with night-watchman until both terms were replaced with the modern security-based titles. Security guards are sometimes regarded as fulfilling a private policing function.

For the services industry, first interaction with the staff makes or breaks your business, because they say first impression lasts long and that is a very valid statement. Prospective customers can make a decision to deal with you just by deciding if the presentation and behaviour of your receptionist or front office staff is good enough for them.

Qualification is not a very important criterion in this field. While a technology company may prefer a science graduate a publishing company may ask for a candidate with arts background. What is important is the candidate’s ability to convince clients about the employers’ services and to calm them down when they are volatile. Communication and presentation is the key here.