A dynamic website is one that changes or customizes itself frequently and automatically. Server-side dynamic pages are generated "on the fly" by computer code that produces the HTML (CSS are responsible for appearance and thus, are static files). There are a wide range of software systems, such as CGI, Java Servlets and Java Server Pages (JSP), Active Server Pages and ColdFusion (CFML) that are available to generate dynamic web systems and dynamic sites. Various web application frameworks and web template systems are available for general-use programming languages like PHP, Perl, Python, and Ruby, to make it faster and easier to create complex dynamic web sites.
A site can display the current state of a dialogue between users, monitor a changing situation, or provide information in some way personalized to the requirements of the individual user. For example, when the front page of a news site is requested, the code running on the web server might combine stored HTML fragments with news stores retrieved from a database or another web site via RSS to produce a page that includes the latest information. Dynamic sites can be interactive by using HTML forms, storing and reading back browser cookies, or by creating a series of pages that reflect the previous history of clicks. Another example of dynamic content is when a retail website with a database of media products allows a user to input a search request, e.g. for the keyword Beatles. In response, the content of the web page will spontaneously change the way it looked before, and will then display a list of Beatles products like CDs, DVDs and books.
One way to simulate a certain type of dynamic web site while avoiding the performance loss of initiating the dynamic engine on a per-user or per-connection basis, is to periodically automatically regenerate a large series of static pages.
The egoless programming team will contain groups of ten or fewer programmers. Code is exchanged and goals are set amongst the group members. Leadership is rotated within the group according to the needs and abilities required during a specific time. The lack of structure in the egoless team can result in a weakness of efficiency, effectiveness and error detection for large-scale projects. Egoless programming teams work best for tasks that are very complex. Individuals that are a part of a decentralized programming team report higher job satisfaction.
The chief programmer team will usually contain three-person teams. Consisting of a chief programmer, senior level programmer and a program librarian while additional programmers and analysts are added to the team when necessary. The weaknesses of this structure include a lack of communication across team members, task cooperation and complex task completion. The chief programmer team works best for tasks that are more simple and straightforward since the flow of information in the team is limited. Individuals that work in this team structure typically report lower work morale.
Taken from ikipedia
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