ITU-T Z.322 PDF

Introduction

This Recommendation describes some of the capabilities which are important to the user and which are commonly available on interfaces based on VDTs. It is not an exhaustive list of capabilities. The use of additional capabilities, not covered in these Recommendations, is not precluded. Not all of the capabilities described need be present on a given system. Graphics capabilities are for future study and are therefore not considered in detail in these Recommendations.

System implementation of these capabilities may vary, depending for example on the degree of intelligence in the terminal itself and the allocation of responsibility for the man-machine interface among system components.

Items covered are treated from the point of view of the importance of their characteristics for designing the man-machine interface. Human factors are dealt with individually for each item.