The who are almost familiar with the GE and

The concept of English for Specific
Purposes (ESP) and General English (GE) teaching and learning  are not equivalent to each other, but a kind
of specialized English.  After 1960s it
has been flourished as an independent field. There are different conditions of
learning and teaching methods in ESP in the comparison with General English (GE)
but the most prominent and noticeable distinction among ESP and GE is the
learners themselves and their aim of learning English.  Commonly ESP learners are adults who are
almost familiar with the GE and want to learn English to be able to communicate
in professional skills and to perform special profession related enterprises. Therefore
it is the necessities and needs to be reached that determine the ESP course
development. The concentration of ESP is on the language in context rather than
teaching grammar and language structures. It involves different topics from
medical science or tourism to commerce or military. The ESP vital point is that
English is not taught as a matter distinct from the learners’ real wants but it
is accommodated to the area that is important to the learners. Anyway, the
difference between GE (General English) and ESP is not only the nature of the
learners, but also the aim of teaching. Indeed, in GE instruction, all four language
skills; listening, reading, speaking, and writing, are emphasized equally. Nonetheless,
in ESP it is the needs analysis that determines which language skills are most
needed for the learners, and based on necessities the syllabus is designed. For
instance, an ESP program might stress the improvement of writing skills in learners
who are preparing for graduate work in Business Administration. An ESP course
might develop the spoken skills in students who are studying English in order
to become tourist guides. ESP researchers and practitioners tend to know the
definitions, history and development of ESP, the main features of ESP, the
needs evaluation process and so forth. They also need to know how to carry out an
effective needs analysis. They have to know these features to design ESP courses
and perform researches. English used for military purposes may be different
from English used in commerce purposes. The fundamental conceptual knowledge on
ESP structures is so unavoidable for ESP investigators or ESP specialists or learners.
For this reason, the paper focuses on the history, development, and concept of
English for Specific Purposes (ESP). The paper also explains the notion of
needs analysis, the components of needs analysis in ESP setting, target
situation needs analysis, and some important theoretical
models of needs assessment that are the significant and fundamental features in
the field of ESP