Communication by Written language

Written language is used in formal form and informal form. In formal form of written language,  you must follow the characteristic of writing, like when you  write a paper or letters. When you write in informal forms like on chatting and sending sort message, there is no penalty for spelling and punctuation errors. 

To write speech communication, please try not to use words you are not comfortable pronouncing or do not know the meaning of because it can lead to a less fluently delivered speech. Written texts are typically not perceived and interpreted at the same times and places. The written texts can be used in different ways, re-employed, duplicated, distributed to particular persons or groups in new situations, and these activities can be regarded as proper communicative acts. A written text and its components parts (letters, words, sentences, and paragraphs) have the character of objects; they are persistent but not temporally organized.

 Characteristics of Written Language
a.    Vocabulary
In both of languages always need vocabulary, but in writing neede letters, words, sentences, and paragraphs.
b.    Grammar
Grammar is always being needed in any kinds of language even in writing or speech even less in written language.
c.    Punctuation
There must be punctuations in written language that the use is the same with intonation in spoken language.