WHAT THEN ARE THE PROBLEMS AND WHY HAVE SUCH PROCEDURES BEEN 
NEGLECTED BY SUCH A PROGRESSIVE ORGANISATION AS THE I.S.P.R.S? 
Before proceeding with this analysis it will be best to consider 
the type of data which would be present and characterise it in 
the light of normal micropublishing terms. First and foremost 
it can be said to be either passive or dynamic in its character. 
PASSIVE means that the data is rarely accessed and rarely 
updated. 
DYNAMIC means that the data may well be open to day by day 
examination and may be regularly updated. 
Updating introduces its own set of problems when considering 
micrographics but if we are prepared to ignore this factor, 
passive and dynamic systems may be considered purely as measures 
of data access, its regularity and its speed. 
Microfiche access is at its dynamic best when retrieval of 
information is computer assisted. 
Computer Assisted Retrieval (CAR) is applicable to both roll 
- film and microfiche and the mechanics of its operations have 
been realised in a variety of ways by a number of manufacturers. 
According to the TRZFAST report these systems assure the 
continued use of CAR and the report emphasises that with greater 
development of applications software, CAR, in a modified form, 
will ensure the superiority of microfilm above all other forms 
of information storage and dissemination systems. 
I.S.P.R.S. technical information, whether gathered at a Congress 
in the manner outlined or through the action of an I.S.P.R.S. 
enquiry is mostly of a passive nature. What then are the problems 
facing the implementation of micrographics as a data storage and 
data distribution aid? 
l. The lack of microfiche readers 
This continues to be a principal objection and it is 
imperative that small quality table top readers are 
fundamental to all well designed Offices of the future. 
Computer aided systems offer even greater freedoms but 
the cost escalates. 
2. The problem of colour copy and its duplication 
Whilst the technology of colour copying is well known 
the mixing of colour and black and white, common to many 
forms of modern day publishing, offers its own range of 
problems. It demands separate films to solve the initial 
photographic problem and whereas inexpensive duplication 
is possible through diazo emulsions, colour duplication is 
expensive and unfortunately not always totally effective. 
Glendinning 1o