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kitch5/30/2008
What does “iterative” mean? & What does “sequential” mean?
Iteration means the act of repetition with improving the result’s accuracy each time by the knowledge gained from the previous one. simply it means the repetition of an action. Iteration starts with a defined initial conditions which is called an iterative step or a termination condition and cycles around.In contrast to the waterfaall, which has no chance to go back if there is a mistake , iterative model has iterations and if there is a problem this iteration gives possibility to user to evaluate the effectiveness, control and change each.
What does “sequential” mean?
Simply, sequential can be defined as a fixed order
Like sequence ,which means the ordered list of objects or events, sequential in science means a list of methods which is involved in testing a hypothesis is made to accept or reject the hypothesis or to continue sampling. In the type of development, the process and stages follow each other and do not allow us to move to the 2nd stage of development until we complete the first one. there is a close similarity of this model with the one of waterfall; however, it also differs from the iterative model since in sequential model it is important to complete one activity before passing the other one.
http://en.wikipedia.org/wiki/Sequential
http://wiki.answers.com/Q/What_is_sequential
What is a “life cycle”?
Life cycle means the all of the events which occurs during an individual’s or a product’s lifetime in a process. For instance , in the life cycle of a plant, seeds are dropped in the ground; soil, water, and compost help the plants grow; the plants drop seeds; the plants die and become compost; new seeds grow into new plants. So the cycle is completed. A product life cycle is similar. A simple life cycle could be considered into five phases :embryonic, executive management acceptance, live management acceptance, growth and maturity.
What is a “process”?
It comes from a Latin word which means “movement”. The range of applications process is very wide. However its general definition can be given “formed as a set of related resources and activities which transforms input into outputs” .Business process starts with a customer’s needs and ends with the fulfillment of these needs. There are three types of business process Management Operational Processes, Supporting Processes,
What is an “event”?
The word “event” has some definitions due to where it is used but event generally is something that happens at a given place and a time.The areas that it mostly used in are science and technology. Events cause significant changes at the projects and events can cause other events called event chains. The moment that event occurs may cause important and unexpected deviations. These kind of events that have great effects on the projects are called “critical events”.
What does “relevance/relevant” mean?
Relevance is a term used to describe how pertinent, connected, or applicable some information is to a given matter. It has unique significance in a variety of fields. Relevance describes how closely the contents of an information source match the topics .it is essential to conclude that in all aspects of life while dealing with certain kind of problems, it is very important to gather relevant information.
What does “reliability” mean?
reliability is the ability of a person or system to perform and maintain its functions in routine circumstances, as well as hostile or unexpected circumstances. In statistics, reliability is directly related to the accordance of a number of measurements.
There are four types of reliability: namely inter-rater or inter-observer reliability test-retest reliability parallel-forms reliability internal consistency reliability.
Inter-Rater or Inter-Observer Reliability
Inter-rater or inter-observer reliability is the evaluation of degrees which observers gives consistently to the same phenomenon.
Test-Retest Reliability
It means the measurement of a consistency from time to time.
Parallel-Forms Reliability
Evaluation of the consistency of the results of two tests held in the same way.
Internal Consistency Reliability
Evaluation of the consistency of results across items within a test.
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